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No-Code · head to head

FlutterFlow vs OutSystems

FlutterFlow logo

FlutterFlow

No-Code

Visual builder that outputs real Flutter code for iOS, Android and web

From
Free
Rated
-
Full reviewWebsite
OutSystems logo

OutSystems

No-Code

Enterprise low-code platform priced by application complexity units, not just users

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only FlutterFlow has a free tier, so it costs nothing to try first.
  • Each has a real cost: FlutterFlow downloading your own generated code requires the Pro tier, so on cheaper plans you can build the application but cannot take it with you, which is precisely the reason most buyers chose the product.; OutSystems application Objects grow with every screen, table and API an app gains, so a successful app that keeps adding features can push the account into AO overage charges that were not modelled at initial budget time.
  • They diverge on capability: FlutterFlow covers Flutter code generation, OutSystems covers Visual application modelling.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which FlutterFlow and OutSystems actually diverge.

Attributes where FlutterFlow and OutSystems differ
AttributeFlutterFlowOutSystems
Starting priceFreeOn request
Pricing modelPer user per monthApplication Object consumption plus internal and external user packs
Free tierYesNo

Identical on both: platforms (Web, iOS, Android), user rating (Not yet rated), category (No-Code).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in FlutterFlow

  • Flutter code generation
  • Firebase and Supabase integration
  • API and GraphQL calls
  • Custom code
  • Store deployment
  • Team collaboration

Only in OutSystems

  • Visual application modelling
  • Generated deployable code
  • One-click deployment
  • AI-assisted development
  • Application Object governance
  • Prebuilt integrations

What people use each for

The jobs each tool is most often brought in to do.

FlutterFlow

  • A founder building a genuine cross-platform mobile app rather than a web formnot OutSystems
  • Prototyping an application that an in-house Flutter team will later take over as codenot OutSystems
  • Agencies delivering client mobile apps on a fixed budget where handing over source is contractualnot OutSystems
  • Internal apps that must be installed from the app stores rather than opened in a browsernot OutSystems

OutSystems

  • An enterprise replacing custom .NET or Java application development with a governed low-code platform at scalenot FlutterFlow
  • A company building customer-facing portals where the external-user pricing tier (packs of 10,000) is materially cheaper than licensing customers as internal usersnot FlutterFlow
  • An IT department that wants generated, inspectable code rather than a proprietary black-box runtimenot FlutterFlow
  • An organisation with a large existing application portfolio needing centralised governance across many apps built by different teamsnot FlutterFlow

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

FlutterFlow

  • Downloading your own generated code requires the Pro tier, so on cheaper plans you can build the application but cannot take it with you, which is precisely the reason most buyers chose the product.
  • The output is Dart and Flutter, so the escape hatch only helps an organisation that already has or is willing to hire Flutter developers; for a non-technical buyer the exported code is unusable.
  • Once logic moves into custom functions and custom widgets, the visual editor becomes slower than writing the same code by hand, so the tool works against you at exactly the point the project gets serious.
  • The browser editor gets sluggish on large projects, with preview and build times that lengthen as page and component counts grow, which is felt daily by teams past the prototype stage.
  • There is no backend; Firebase or Supabase modelling, security rules, indexes and their bills are entirely your responsibility, so a FlutterFlow application is always at least two subscriptions and two skill sets.

OutSystems

  • Application Objects grow with every screen, table and API an app gains, so a successful app that keeps adding features can push the account into AO overage charges that were not modelled at initial budget time.
  • Internal users are sold in packs of 100 and external users in packs of 10,000, so a company just over a pack boundary in either category pays for a full additional pack rather than a handful of extra seats.
  • Entry-level ODC pricing starts around 36,300 US dollars a year before any AO overage or extra user packs, which puts it out of reach for smaller teams evaluating low-code options.
  • Cloud infrastructure and hosting costs are frequently separate from the platform licence, so the all-in bill is higher than the headline subscription figure suggests.
  • Migrating a large application portfolio off OutSystems once built is difficult, since the generated code and platform-specific patterns are not designed for a clean export to standard frameworks.

Pricing, plan by plan

FlutterFlow

Free
  • FreeFree
    • Build and preview applications
    • FlutterFlow branding
    • No code download
  • Standard$30/month
    • Removes branding
    • Custom domain for web deployment
    • Local run and testing
  • Pro$70/month
    • Download the generated Flutter source
    • GitHub integration
    • Custom code and custom widgets without restriction
  • Teams$70/month
    • Everything in Pro, billed per user
    • Shared project libraries and roles
    • Branching and collaborative editing

OutSystems

On request
  • ODC Entry$undefined/year
    • Entry-level Application Object allowance included
    • Internal users sold in packs of 100
    • External users sold in packs of 10,000
  • ODC Enterprise$undefined/year
    • Custom AO, user pack and environment volumes
    • Negotiated multi-year enterprise agreements
    • Premium support and dedicated infrastructure options

Which should you pick?

Choose FlutterFlow if

  • You need flutter code generation.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want firebase and supabase integration.
FlutterFlow review

Choose OutSystems if

  • You need visual application modelling.
  • You work on Web, iOS, Android.
  • You also want generated deployable code.
OutSystems review

Questions people ask

Is FlutterFlow or OutSystems better?
Neither clearly leads. FlutterFlow starts at Free and OutSystems at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FlutterFlow or OutSystems?
FlutterFlow has a free tier; the other does not. Paid plans start at Free for FlutterFlow and On request for OutSystems.
Does FlutterFlow or OutSystems run on more platforms?
Both run on Web, iOS, Android, so platform support will not decide this one for you.
Can I use FlutterFlow for free?
Yes. FlutterFlow has a free tier, so you can try it without paying. OutSystems starts at On request.
What is FlutterFlow best used for?
FlutterFlow is most often used for a founder building a genuine cross-platform mobile app rather than a web form, prototyping an application that an in-house flutter team will later take over as code, agencies delivering client mobile apps on a fixed budget where handing over source is contractual, internal apps that must be installed from the app stores rather than opened in a browser. Of those, a founder building a genuine cross-platform mobile app rather than a web form and prototyping an application that an in-house flutter team will later take over as code are not what OutSystems is typically brought in for.
What can FlutterFlow do that OutSystems cannot?
FlutterFlow covers Flutter code generation, Firebase and Supabase integration, API and GraphQL calls, Custom code. OutSystems covers Visual application modelling, Generated deployable code, One-click deployment, AI-assisted development.

Answered from the vendors’ own pages

FlutterFlow: Can I export the code?

Yes, on the Pro tier and above. Lower tiers can build and preview but not download the Flutter project.

OutSystems: What is an Application Object?

A unit OutSystems uses to measure application complexity, counting elements such as screens, database tables and exposed APIs; more AOs mean a bigger licence requirement.

FlutterFlow: Do I need to know how to code?

Not to build a straightforward application. You will need Dart for custom functions, for anything unusual, and for maintaining the exported project afterwards.

OutSystems: Is there a free tier?

OutSystems has offered free or trial tiers historically for evaluation, but production use at any scale runs on paid ODC plans.

FlutterFlow: Does it include a database?

No. FlutterFlow builds the client. Data lives in Firebase, Supabase or your own API, and those costs and design decisions are separate.

OutSystems: How does external user pricing work?

External users, typically customers or partners, are sold in packs of 10,000 at roughly a hundredth of the per-seat cost of internal (employee) user packs.

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