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Mobile Development · head to head

Adjust vs Flutter

Adjust logo

Adjust

Mobile Development

Mobile measurement and fraud prevention, owned by the ad network AppLovin since 2021

From
On request
Rated
-
Full reviewWebsite
Flutter logo

Flutter

Mobile Development

Google’s open-source framework for building apps from one codebase

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Flutter has a free tier, so it costs nothing to try first.
  • Each has a real cost: Adjust the vendor is owned by AppLovin, an advertising network and game publisher, so the party measuring campaign performance has a corporate interest in some of the inventory being measured.; Flutter dart is used almost nowhere else, so the language itself is a hiring and learning cost
  • They diverge on capability: Adjust covers Install and event attribution, Flutter covers Single codebase, many targets.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Adjust and Flutter actually diverge.

Attributes where Adjust and Flutter differ
AttributeAdjustFlutter
Starting priceOn requestFree
Pricing modelPer attributed installOpen source, no licence fee
Free tierNoYes
PlatformsiOS, Android, WebiOS, Android, Web, Windows, macOS, Linux

Identical on both: user rating (Not yet rated), category (Mobile Development).

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 Adjust

  • Install and event attribution
  • Fraud prevention
  • Audience builder
  • Automate
  • Datascape reporting
  • Data residency options

Only in Flutter

  • Single codebase, many targets
  • Own rendering engine
  • Hot reload
  • Widget library
  • Ahead-of-time compilation
  • DevTools

What people use each for

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

Adjust

  • An advertiser wanting fraud rejection applied before invoices are approved rather than clawed back afterwardsnot Flutter
  • European organisations that need attribution data held in the European Unionnot Flutter
  • Mid sized user acquisition teams that found the largest measurement partner's commitment level unaffordablenot Flutter
  • Games publishers running spend across many networks who need one reconciled performance viewnot Flutter

Flutter

  • Shipping one app to iOS and Android with a small teamnot Adjust
  • Interfaces with heavy custom design that need to look identical on both platformsnot Adjust
  • Adding web or desktop builds to an existing mobile codebasenot Adjust
  • Prototyping quickly where hot reload shortens the design loopnot Adjust

Where each one falls short

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

Adjust

  • The vendor is owned by AppLovin, an advertising network and game publisher, so the party measuring campaign performance has a corporate interest in some of the inventory being measured.
  • Pricing is per attributed install on an annual commitment, meaning a successful campaign raises the measurement bill proportionally and overage above the commitment is charged at a worse rate.
  • App Tracking Transparency removed deterministic iOS attribution for users who decline tracking, so a significant portion of iOS reporting is modelled and the interface does not always separate modelled from observed.
  • Fraud prevention, audiences and the analytics layer are priced as separate modules, so a comparison against a competitor quote is only valid if module scope is matched line by line.
  • Attribution history stays with the vendor, so switching partners breaks year on year comparisons and the cost of leaving rises with every year of data accumulated.

Flutter

  • Dart is used almost nowhere else, so the language itself is a hiring and learning cost
  • Because Flutter draws its own widgets, apps can feel subtly unlike the platform unless deliberately styled per-platform
  • Binary sizes are larger than equivalent native apps because the engine ships with the app
  • Access to a brand-new platform API waits on a plugin, or on writing platform channel code yourself

Pricing, plan by plan

Adjust

On request
  • Adjust$undefined/year
    • Annual commitment priced on attributed install volume, with fraud prevention and audiences as add on modules
    • Terms are negotiated and not published; mid market discounting is generally more available than at the largest competitor

Flutter

Free
  • FlutterFree
    • Full framework
    • All platform targets
    • Dart toolchain

Which should you pick?

Choose Adjust if

  • You need install and event attribution.
  • You work on iOS, Android, Web.
  • You also want fraud prevention.
Adjust review

Choose Flutter if

  • You need single codebase, many targets.
  • You want to start without paying.
  • You work on iOS, Android, Web, Windows, macOS, Linux.
  • You also want own rendering engine.
Flutter review

Questions people ask

Is Adjust or Flutter better?
Neither clearly leads. Adjust starts at On request and Flutter at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Adjust or Flutter?
Flutter has a free tier; the other does not. Paid plans start at On request for Adjust and Free for Flutter.
Does Adjust or Flutter run on more platforms?
Adjust runs on iOS, Android, Web. Flutter runs on iOS, Android, Web, Windows, macOS, Linux.
Can I use Flutter for free?
Yes. Flutter has a free tier, so you can try it without paying. Adjust starts at On request.
What is Adjust best used for?
Adjust is most often used for an advertiser wanting fraud rejection applied before invoices are approved rather than clawed back afterwards, european organisations that need attribution data held in the european union, mid sized user acquisition teams that found the largest measurement partner's commitment level unaffordable, games publishers running spend across many networks who need one reconciled performance view. Of those, an advertiser wanting fraud rejection applied before invoices are approved rather than clawed back afterwards and european organisations that need attribution data held in the european union are not what Flutter is typically brought in for.
What can Adjust do that Flutter cannot?
Adjust covers Install and event attribution, Fraud prevention, Audience builder, Automate. Flutter covers Single codebase, many targets, Own rendering engine, Hot reload, Widget library.

Answered from the vendors’ own pages

Adjust: Does AppLovin ownership compromise measurement?

There is no public evidence of manipulation, but the structural conflict exists. Some advertisers exclude Adjust for that reason alone and it is a legitimate position.

Flutter: Is Flutter free?

Yes. Flutter is open source with no licence fee. The framework is under a Creative Commons Attribution 4.0 licence and its code samples under the 3-Clause BSD licence.

Adjust: How does it compare with AppsFlyer on price?

Generally more flexible for mid sized advertisers. Compare module scope, not headline rates, because attribution alone is rarely what you need.

Flutter: What language does Flutter use?

Dart, a language Google designed for fast startup and ahead-of-time compilation to native code.

Adjust: Can data be kept in the EU?

Yes, European hosting is offered, which is a common reason for choosing it over United States based competitors.

Flutter: Can Flutter build for more than mobile?

Yes. The same codebase targets iOS, Android, web, Windows, macOS, Linux and embedded devices, though mobile remains the most mature target.

Flutter: How is Flutter different from React Native?

Flutter draws its own widgets with its own engine, so the result is pixel-identical across platforms. React Native renders to the real native components of each platform. Flutter uses Dart; React Native uses JavaScript and React.

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