Best No-Code App Builder in 2026: Bubble vs FlutterFlow vs Glide vs Softr vs Retool (Verified July 2026)

Bubble is the best no-code app builder for a complex web SaaS, FlutterFlow for a native mobile product, Glide for a spreadsheet-backed internal app, Softr for a client portal, and Retool for an operations tool. The launch floor runs from FlutterFlow's $39 per month Basic plan to Bubble's $59 per month Web & Mobile Starter, but the cheaper wrong architecture costs more than either.

The best no-code app builders at a glance

There is no useful overall winner without naming the application. A public SaaS needs flexible data and workflow logic. A field app needs mobile distribution. A client portal needs sane external-user economics. An internal tool needs secure database access more than pixel-perfect marketing pages.

All prices below were verified on the vendors' live pricing pages on 30 July 2026. "Starting price" means the lowest paid tier that can realistically launch the use case named here, not the cheapest plan a vendor happens to sell.

The shortest decision rule: choose Bubble when product logic is the hard part, FlutterFlow when app-store distribution and source code matter, Glide when the data already looks like a spreadsheet, Softr when external users need a clean portal, and Retool when technical staff are building against production systems.

The choice flips when one requirement becomes non-negotiable. Bubble loses as soon as source-code ownership is mandatory. FlutterFlow loses when nobody can maintain Flutter after export. Glide loses when Apple App Store or Google Play distribution is required. Softr loses when the portal becomes a deeply custom software product. Retool loses when the experience must look and behave like a consumer application.

How these no-code app builders were picked

"No code" is too broad to be a useful test. These products solve different layers of software delivery, so the evaluation starts with the constraints that are expensive to reverse:

• Application shape: public SaaS, native mobile app, spreadsheet workflow, client portal, or internal operations console.
• Distribution: browser, progressive web application, Apple App Store, Google Play, private internal access, or an external portal.
• Portability: whether the application can leave the vendor, whether code can be exported, and what a rebuild would involve.
• Pricing unit: workload, builder seats, application users, row updates, or external users. The lowest sticker price rarely predicts the bill at scale.
• Data and permissions: how the builder connects to a database, separates user roles, and prevents one customer from seeing another customer's records.
• Operational ceiling: what happens when the application needs custom logic, branches, source control, audit logs, or a real release process.

The products were priced and analyzed, not represented as hands-on tested. That distinction matters. A polished template says little about how a builder behaves under a real data model, and a free prototype says little about the cost of a production workload.

Five ranked products are enough because each earns a distinct job. Adding another generalist with no clearer winning use case would make the decision harder, not more complete. An adjacent website builder appears later only because it is an honest answer for people who discover they do not need an application at all.

1. Bubble: best overall for a complex web SaaS

Bubble is the strongest general no-code app builder when the product is a browser-based SaaS with accounts, permissions, relational data, payments, and multi-step workflows. It combines the visual interface, application logic, database, hosting, and deployment model in one system. That integrated stack removes a large amount of glue work, which is why Bubble is the default winner for a founder who needs more than a portal but does not need exported source code.

The concrete use case is a two-sided marketplace or a subscription product with several user roles. Bubble can model customers, vendors, listings, orders, and messages, then attach privacy rules and workflows to those records. Its visual workflow engine is materially more flexible than a spreadsheet-to-app wrapper when a button needs to validate several conditions, update related records, trigger an API, and send a notification.

The wall is portability. Bubble's application ownership documentation says the platform retains its runtime code and that Bubble applications run only on Bubble. You can export data, but you cannot download the application's source code and host it elsewhere. Leaving means rebuilding the interface and logic in another stack. That is not a minor procurement clause. It is the central tradeoff.

Bubble also prices production through workload units. The model is fairer than a crude page-view cap when applications vary in complexity, but it makes cost forecasting a real engineering task. An inefficient search or workflow can consume more workload than a visually similar operation built with better constraints. Bubble lets you disable overages; without an added workload tier, overage is $0.30 per 1,000 workload units. If overages are disabled and the limit is reached, the application stops serving requests.

Best for: Browser-based SaaS, marketplaces, account-based products, and custom workflow applications
Standout: The deepest all-in-one visual logic and data model in this group
Pricing: Free is $0 with one editor, 50,000 workload units per month, and development only. Starter is $59 per month billed annually with 175,000 workload units, a live site and custom domain, five mobile build submissions per month, and three live app versions. Growth is $209 per month billed annually with two editors, 250,000 workload units, 10 custom branches, 10 build submissions, and five live versions. Team is $549 per month billed annually with five editors, 500,000 workload units, 25 custom branches, 20 build submissions, and eight live versions. Enterprise is custom. Extra file storage is $3 per 100 GB per month.
Free trial: No timed trial is needed; the Free plan supports development but not a live production application

A safer Bubble launch sequence

Bubble is the top pick, but the fastest path to a polished screen is not the safest path to production. Build one narrow workflow and measure its data access before expanding the product.

1. 1

   Model the data and privacy boundary

   Create the core data types first. Put every sensitive type behind explicit rules in Data > Privacy, then verify which fields each user role can search and view. Do this before filling the application with reusable screens.

2. 2

   Build one vertical slice

   Complete one real journey from entry to result, such as account creation, listing submission, approval, and published listing. A vertical slice exposes data-model and permission problems that isolated screens hide.

3. 3

   Measure representative workload

   Run the journey with realistic record counts while still on the Free development plan. Inspect workload usage for searches, repeating groups, API calls, and background workflows. Optimize the expensive operation before duplicating it across the product.

4. 4

   Set the cost guardrail

   Open Settings > App Plan and decide whether to disable overages or add a workload tier. A hard stop is painful, but it is safer than an unbounded bill during an unexpected traffic spike.

5. 5

   Clear issues and deploy

   Bring the issue checker to zero, then use version control to deploy Development to Live. Keep each release small enough that a workload or privacy regression can be traced to one change.

Bubble is the right choice when its integrated logic saves more time than its lock-in costs. Skip it if a buyer, investor, or technical policy requires a portable codebase. If AI-first generation matters more than visual workflow depth, the separate guide to AI app builders in 2026 covers that faster, more code-oriented category.

2. FlutterFlow: best for native mobile apps and code ownership

FlutterFlow is the best no-code app builder here for a product that must ship through Apple App Store or Google Play and may eventually need a conventional engineering team. It generates a standard Flutter project, and the exported project can run without FlutterFlow. That changes the exit plan completely: the visual builder accelerates the first version, but the code is not trapped in a proprietary runtime.

The concrete fit is a customer-facing mobile application with authentication, API data, notifications, and store distribution. FlutterFlow can also build for web and desktop, but native mobile is where its tradeoffs make the most sense. Basic includes code and APK downloads plus one-click app-store deployment, so the $39 monthly entry point buys an actual portability path rather than merely a larger usage quota.

Exported code is not the same as effortless ownership. Someone still needs to understand Flutter and Dart when a plugin breaks, a store policy changes, or a custom native integration falls outside the visual builder. FlutterFlow's GitHub workflow also deserves discipline: generated code is pushed to a flutterflow branch, and direct edits there can be overwritten. Keep custom engineering in another branch, then merge generated changes deliberately.

The second wall is collaboration pricing. A solo builder can stay on Basic. GitHub starts on Growth at $80 for the first seat, and the second seat is another $55. A larger product group reaches Business quickly because branches, automated tests, Figma import, and CLI access sit there. The code export is valuable, but team workflow is where the bill expands.

Best for: Native iOS and Android products with a credible handoff to developers
Standout: Exportable standard Flutter code plus direct store deployment
Pricing: Free is $0 with two projects, mobile, web, and desktop targets, and 10 Lite credits. Basic is $39 per month with unlimited projects, code and APK download, a custom domain, one-click app-store deployment, and 100 Lite credits. Growth is $80 per month for the first seat plus $55 for the second, with two users, two branches, GitHub, OpenAPI imports, and 200 Lite credits per seat. Business is $150 per month for the first seat plus $85 for seats two through five, with up to five users, five branches, three automated tests, Figma import, CLI access, and 400 Lite credits per seat. Enterprise has no public price and requires a sales conversation. These are the live monthly-billing prices.
Free trial: The Free plan supports two projects; code download and production-oriented deployment features begin on Basic

FlutterFlow wins when native distribution plus exportable code is the decision pair. It loses when the organization wants a fully managed no-code system and has no Flutter maintainer. For a prompt-driven prototype rather than a mobile product, Lovable versus Bolt is the more relevant comparison.

3. Glide: best for spreadsheet-backed internal and field apps

Glide is the fastest choice when a business process already lives in rows and columns and the replacement should feel like an application without becoming a software project. It is particularly strong for inventory checks, field inspections, directories, lightweight CRMs, and operational trackers. The data model and interface stay approachable enough for an operations owner to understand.

The concrete use case is a field team that needs to look up a location, complete a form, attach a photo, and update a status from a phone. Glide can publish that workflow as a progressive web application, share it by link, and install it from the browser. The experience is dramatically cleaner than letting staff edit the underlying spreadsheet directly.

That distribution model is also the hard limit. Glide says its applications are progressive web applications and does not support direct App Store or Google Play publishing. A wrapper service does not change the underlying support boundary. If store presence is a product requirement, choose FlutterFlow before building.

Glide's pricing unit combines users and updates. Explorer is inexpensive for a personal-user application. Business includes 30 work-email users and 5,000 updates, then charges for additional users and updates. A workflow with frequent synchronization can hit a different cost profile than a read-heavy directory, even when both have the same headcount.

The Free tier needs careful wording: it lets you build, but it does not publish an application. That makes it a useful design sandbox, not a free production plan.

Best for: Spreadsheet-backed internal tools, field workflows, inventories, and simple operational apps
Standout: The shortest path from structured business data to a usable phone-friendly interface
Pricing: Free is $0 and build-only. Explorer is $19 per month billed annually or $25 month to month, with one published app, 100 personal users, 250 updates, and extra updates at $0.02 each. Maker is $49 per month billed annually or $60 month to month, with three published apps, unlimited personal users, 500 updates, a custom domain, and custom branding. Business is $199 per month billed annually or $249 month to month, with unlimited apps, 30 work-email users, 5,000 updates, 100,000 high-scale rows, 10 editors, extra work-email users at $5 each on annual billing or $6 month to month, and extra updates at $0.02 each. Enterprise is custom.
Free trial: Free supports building and evaluation, but publishing requires a paid plan

Choose Glide when speed, clarity, and a PWA are advantages. Skip it for a consumer mobile product, an offline-critical workflow, or application logic that no longer resembles a structured business table.

4. Softr: best for client portals and member hubs

Softr is the best no-code app builder for a client portal that sits on top of an existing business data source. It turns records from Softr Database, Airtable, Google Sheets, and other connected systems into logged-in pages, lists, forms, and role-aware views. The result is a cleaner fit for onboarding hubs, partner portals, member directories, and customer dashboards than a general-purpose SaaS builder.

The concrete use case is an agency that needs every client to see only their own projects, files, invoices, and request forms. Softr's custom user groups and two-way data connections let the portal become a controlled window into the operating data rather than a second disconnected system. Professional is the practical center of gravity because it includes 100 application users, three custom user groups, and the progressive web application feature.

The tradeoff is depth. Softr is excellent when the application is mostly authenticated content and structured interaction. It becomes a poor fit when every customer needs a highly custom workflow engine, an unusual interface state model, or deep product behavior. At that point Bubble earns its complexity.

Softr's PWA can be installed from a browser on Professional and higher, but it requires an internet connection. It is not the choice for a native offline-first field product. That sentence should decide the tool before visual preferences do.

Best for: Client portals, partner portals, membership hubs, and authenticated business directories
Standout: Strong external-user economics on top of existing data sources
Pricing: Free is $0 with 10 application users, 5,000 Softr Database records, 500 workflow actions, unlimited applications and collaborators, and five AI credits. Basic is $49 per month billed annually with 20 application users, 50,000 records, 2,500 workflow actions, and 10 AI credits. Professional is $139 per month billed annually with 100 application users, extra users in blocks of 10 for $10, 500,000 records, 10,000 workflow actions, three custom user groups, and 50 AI credits. Business is $269 per month billed annually with 500 application users, 1,000,000 records, 25,000 workflow actions, unlimited custom user groups, and 100 AI credits. Enterprise is custom.
Free trial: The Free plan can run a small 10-user application

The 50-user portal cost is not a ranking by itself

A 50-user portal exposes how different pricing models behave. On the live annual prices, two Retool Business builders with the first 50 external users included cost $1,200 per year. Softr Professional costs $1,668. Glide Business with 50 work-email users costs $3,588.

Those numbers are not interchangeable quotes. Retool is best when technical builders are exposing operational data. Softr is purpose-built for a polished portal. Glide is strongest when the portal is really a spreadsheet-shaped operational app. The useful conclusion is that user economics can eliminate a product, but they cannot prove product fit.

Softr Professional is $1,920 per year less than Glide Business in this 50-user scenario. If both can express the workflow, Softr has the stronger portal economics. If the application is a field data tool rather than a portal, the savings do not make Softr the better architecture.

5. Retool: best for technical internal tools

Retool is the best no-code app builder for engineers and operations teams that need secure interfaces over databases, APIs, and production systems. It is less a consumer app builder than a controlled way to assemble admin panels, support consoles, approval tools, and operational workflows. That narrower identity is exactly why it wins its category.

The concrete use case is a support console that looks up a customer across several systems, displays account state, and allows a trained employee to issue a credit or trigger a workflow. Retool's components and connectors let a technical builder focus on the decision surface instead of recreating tables, forms, authentication, and plumbing from scratch.

Pricing separates builders from internal users. On Team, two builders and 10 internal users cost $70 per month when billed annually. Business raises that scenario to $250 per month, but adds audit logs, granular permissions, Portals, embedded applications, and custom branding. The higher tier is not just "more usage"; it changes what the product can safely do for external users and governed organizations.

Portals sit on Business. The first 50 external users are included, then users 51 through 250 cost $8 each per month, users 251 through 500 cost $6, and users above 500 cost $4. That can make a narrow external operations portal surprisingly economical. It does not make Retool a substitute for a consumer-facing SaaS with bespoke interaction design.

Self-hosting is an Enterprise feature. Organizations with a mandatory self-host policy should treat that sales conversation as part of the architecture decision, not as a procurement detail left until launch.

Best for: Admin panels, support consoles, approval systems, data operations, and technical internal applications
Standout: Fast interfaces over real databases and APIs, with governance on higher tiers
Pricing: Free is $0 for up to five users, unlimited web and mobile applications, 500 workflow runs per month, 5 GB database storage, and 5 GB file storage. Team is $10 per builder and $5 per internal user per month billed annually, with 5,000 workflow runs. Business is $50 per builder and $15 per internal user per month billed annually, with audit logs, granular permissions, Portals, embedded apps, and custom branding. On Business, the first 50 external users are included; users 51 through 250 are $8 each per month, users 251 through 500 are $6 each, and users above 500 are $4 each. Enterprise uses flexible custom pricing and adds capabilities including SSO, source control, monitoring, white labeling, and self-hosting.
Free trial: Free supports up to five users; paid governance and portal requirements determine the upgrade

Retool wins when the builders understand the underlying systems and the users are completing controlled operational tasks. Skip it when the application's public experience is the product.

Who should pick what

Start with the most expensive requirement to reverse, then use price to choose among the products that survive.

Pick Bubble when logic is the product

Choose Bubble for a web application with several user roles, relational data, and workflows that would be awkward in a spreadsheet. The choice flips to FlutterFlow if source export or native stores are mandatory, and to Softr if the "application" is mostly a portal over existing data.

Pick FlutterFlow when distribution and code ownership matter

Choose FlutterFlow for a native mobile product and budget for someone to own the exported Flutter code. The choice flips to Glide when browser installation is acceptable and the workflow is simple, or to Bubble when the application is web-first and complex logic matters more than code export.

Pick Glide when the spreadsheet is a feature

Choose Glide when staff already understand the rows, columns, and forms behind the process. The choice flips to FlutterFlow when app-store presence matters, to Softr when external portal users dominate the economics, and to Retool when direct database or API work needs technical control.

Pick Softr when access is the product

Choose Softr when different customers, partners, or members need clean views over shared business data. The choice flips to Bubble when custom behavior becomes the product and to Retool when technical operators, rather than customers, are the main users.

Pick Retool when the interface sits on production systems

Choose Retool for trained internal users, governed actions, and interfaces over APIs or databases. The choice flips to Softr for a polished nontechnical portal and to Bubble for a public SaaS where interaction design and product logic must grow together.

Run a vertical-slice pilot before committing

Build the same narrow workflow in the two surviving options. Include one sensitive record, one permission boundary, one integration, one error case, and one representative data set. Then estimate the paid tier at the first realistic user milestone. A landing page and a happy-path form are too shallow to expose the architecture's real constraints.

The ones to avoid, by scenario

There is no universally bad product in this shortlist. There are bad pairings that create predictable rebuilds.

• Avoid Bubble when source-code ownership, self-hosting, or a conventional engineering handoff is written into the requirement. Data export does not remove runtime lock-in.
• Avoid FlutterFlow when nobody can maintain Flutter and Dart after export. Code ownership without an owner is a false comfort.
• Avoid Glide when direct Apple App Store or Google Play distribution is mandatory. Glide's supported product is a PWA.
• Avoid Softr when the application needs deeply custom state, unusual real-time interactions, or complex product logic. A portal builder should not be stretched into a bespoke SaaS.
• Avoid Retool when a consumer-grade public experience is the core differentiator. It is built around operational interfaces, not marketing-led product design.

SitesGPT: use it when the "app" is really a website

SitesGPT is the honest adjacent choice when the requirement turns out to be a responsive marketing website with pages and a lead form, not an authenticated data workflow. It is not ranked as a no-code app builder because it does not solve the same job. That boundary is useful: many early "app" briefs are actually a site, a form, and a follow-up process.

The Free plan costs $0 and includes a home page, custom images, a lead form, and a branded subdomain. Business costs $96 per year and adds unlimited pages, custom images, a lead form, a free custom domain, and TLS/SSL. Use it for a fast web presence. Do not choose it for user accounts, relational application data, or multi-step product logic.

Best for: A small responsive website and lead capture
Standout: A simple $96-per-year Business plan with a custom domain and TLS/SSL
Pricing: Free is $0. Business is $96 per year.
Free trial: The Free plan does not require a card

AppSheet: the Google Workspace-specific alternative

AppSheet is Google's no-code application platform and the natural additional candidate for an organization already centered on Google Workspace. Its value is ecosystem fit, especially when the data and identity model already live in Google's environment.

It is not one of the five ranked winners because the decision here is organized around distinct product jobs, not vendor ecosystem procurement. Add AppSheet to the pilot when Google Workspace integration is a hard organizational constraint. AppSheet supports prototypes with up to 10 test users at no cost.

Best for: Google Workspace-centered internal and field applications
Standout: Native fit with Google's data, identity, and administration environment
Pricing: Starter is $5 per user per month. Core is $10 per user per month and is included in most paid Google Workspace plans. Enterprise Plus is $20 per user per month. Publisher Pro is $50 per application per month for an unlimited-user public app without sign-in or security filters.
Free trial: Prototype one or more apps with up to 10 test users at no cost

Frequently asked questions

Which no-code platform is best?

Bubble is the best broad choice for a complex browser-based SaaS. FlutterFlow is better for native mobile and code export, Glide for spreadsheet-backed internal apps, Softr for client portals, and Retool for technical operations tools.

What no-code app builder should I consider first?

Start with Bubble and the specialist that matches your application type. Compare Bubble with FlutterFlow for mobile, Glide for spreadsheet workflows, Softr for portals, or Retool for database-backed internal tools.

Is there a free no-code app builder?

Yes. All five ranked products have free plans, but the limits differ. Bubble Free is development-only, Glide Free cannot publish, and the other free plans are best treated as prototype or small-use tiers rather than proof of production cost.

Does Google have a no-code app builder?

Yes. AppSheet is Google's no-code application platform and integrates with Google Workspace. It belongs on the shortlist when the organization's data, identity, and operating workflows already center on Google.

Can a no-code app be published to Apple App Store and Google Play?

FlutterFlow supports direct store deployment after the required store accounts and setup are complete. Glide does not support direct store publishing because Glide applications are PWAs. Bubble includes mobile build submissions on its paid Web & Mobile tiers, but its runtime remains proprietary.

Which no-code builder lets me export source code?

FlutterFlow exports a standard Flutter project. Bubble does not export its application runtime code. Code export matters only if someone can maintain the exported framework afterward.

What are the best no-code app builders for a client portal?

Softr is the first choice for a polished portal over existing business data. Retool Business is compelling when technical builders need to expose operational data to external users.

What is the best free no-code mobile app builder?

FlutterFlow Free is the most relevant starting point for a native-mobile concept because it supports mobile projects, but code download and one-click store deployment begin on the $39 per month Basic plan. A free prototype should not be confused with a free production release.

Final recommendation

Bubble is the best no-code app builder for the broadest class of complex web products, but it is not the safe default for every application. FlutterFlow is the better native-mobile and ownership decision. Glide is the fastest spreadsheet workflow. Softr is the cleanest portal choice. Retool is the strongest technical operations builder.

The durable buying rule is simple: architecture first, distribution second, portability third, price fourth. Price only the tools that survive those constraints. Then build one vertical slice with real permissions and representative data before signing an annual plan.

If the brief cannot name the app type, the data source, the user roles, and the required distribution channel, it is not ready for a builder decision.

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