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Mobile Development · head to head

.NET MAUI vs Formance

.NET MAUI logo

.NET MAUI

Mobile Development

Microsoft-maintained, free framework for native iOS, Android, Windows and macOS apps from one C# codebase

From
Free
Rated
-
Full reviewWebsite
Formance logo

Formance

APIs

Open source double-entry ledger and payment orchestration for money-moving software

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: .NET MAUI its release and support lifecycle is tied to the underlying .NET version, so a team on an odd-numbered .NET release faces a support cutoff roughly every eighteen months and must budget upgrade work accordingly.; Formance formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.
  • They diverge on capability: .NET MAUI covers Single C# and XAML codebase, Formance covers Double-entry ledger.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which .NET MAUI and Formance actually diverge.

Attributes where .NET MAUI and Formance differ
Attribute.NET MAUIFormance
PlatformsWindows, macOS, iOS, AndroidLinux, Docker, Kubernetes, Web, API
CategoryMobile DevelopmentAPIs

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated).

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 .NET MAUI

  • Single C# and XAML codebase
  • Native UI rendering
  • Xamarin migration path
  • Hot Reload
  • Blazor Hybrid support
  • MVU and data binding

Only in Formance

  • Double-entry ledger
  • Numscript transaction DSL
  • Multi-currency
  • Payments connectivity
  • Reconciliation
  • Self-hosted deployment
  • Cloud offering
  • API and SDKs

What people use each for

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

.NET MAUI

  • A .NET shop extending an existing C# codebase or business logic layer into iOS and Androidnot Formance
  • A team migrating a retired Xamarin.Forms app, since Microsoft provides an official upgrade pathnot Formance
  • An organisation that wants one codebase spanning mobile and Windows desktop without a second languagenot Formance
  • A company standardised on Visual Studio and Azure DevOps wanting mobile builds in the same pipelinenot Formance

Formance

  • A marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditablenot .NET MAUI
  • A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an auditnot .NET MAUI
  • A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for eachnot .NET MAUI
  • A company that wants its ledger under a licence it can keep running even if the vendor disappearsnot .NET MAUI

Where each one falls short

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

.NET MAUI

  • Its release and support lifecycle is tied to the underlying .NET version, so a team on an odd-numbered .NET release faces a support cutoff roughly every eighteen months and must budget upgrade work accordingly.
  • Platform-specific control styling and native look-and-feel have historically needed more manual work and workaround packages than Flutter delivers out of the box.
  • macOS and desktop support are less mature than the iOS and Android targets, so teams wanting a strong Mac app experience often still reach for native AppKit or a dedicated tool.
  • The talent pool of mobile developers fluent in MAUI specifically is smaller than for Flutter or React Native, even though C# itself is common.
  • Third-party control libraries such as Syncfusion and Telerik fill real gaps in the built-in component set, meaning a serious app often carries an additional commercial licence cost despite the framework itself being free.

Formance

  • Formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.
  • Numscript is a domain-specific language your team must learn, and while it makes complex splits expressible it also means transaction logic sits outside the languages your engineers already debug well.
  • Self-hosting a ledger that must never lose or duplicate a transaction is a serious operational commitment covering backups, upgrades and Postgres tuning, which is real cost the zero licence fee hides.
  • Enterprise pricing is not published, so the difference between the free path and the supported path cannot be evaluated without a sales conversation.
  • The company is much smaller than the incumbent alternatives, and while the MIT licence protects the code it does not protect the roadmap, so features on the hosted side may arrive slowly or change direction.

Pricing, plan by plan

.NET MAUI

Free
  • .NET MAUIFree
    • MIT licensed, unlimited apps
    • Bundled with the free .NET SDK
    • Visual Studio Community edition available at no cost for individuals and small teams

Formance

Free
  • Open SourceFree
    • MIT licensed core ledger
    • Numscript transaction DSL
    • Multi-currency tracking
  • Enterprise$undefined/year
    • Managed or private deployment
    • Payments connectivity and reconciliation
    • Support with response commitments

Which should you pick?

Choose .NET MAUI if

  • You need single c# and xaml codebase.
  • You want to start without paying.
  • You work on Windows, macOS, iOS, Android.
  • You also want native ui rendering.
.NET MAUI review

Choose Formance if

  • You need double-entry ledger.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Web, API.
  • You also want numscript transaction dsl.
Formance review

Questions people ask

Is .NET MAUI or Formance better?
Neither clearly leads. .NET MAUI starts at Free and Formance at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, .NET MAUI or Formance?
.NET MAUI starts at Free and Formance at Free.
Does .NET MAUI or Formance run on more platforms?
.NET MAUI runs on Windows, macOS, iOS, Android. Formance runs on Linux, Docker, Kubernetes, Web, API.
Can I use .NET MAUI for free?
Both have a free tier, so you can try either at no cost before committing.
What is .NET MAUI best used for?
.NET MAUI is most often used for a .net shop extending an existing c# codebase or business logic layer into ios and android, a team migrating a retired xamarin.forms app, since microsoft provides an official upgrade path, an organisation that wants one codebase spanning mobile and windows desktop without a second language, a company standardised on visual studio and azure devops wanting mobile builds in the same pipeline. Of those, a .net shop extending an existing c# codebase or business logic layer into ios and android and a team migrating a retired xamarin.forms app, since microsoft provides an official upgrade path are not what Formance is typically brought in for.
What can .NET MAUI do that Formance cannot?
.NET MAUI covers Single C# and XAML codebase, Native UI rendering, Xamarin migration path, Hot Reload. Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity.

Answered from the vendors’ own pages

.NET MAUI: Is .NET MAUI really free for commercial apps?

Yes. It ships under the MIT licence as part of the free .NET SDK, with no separate mobile licence fee from Microsoft.

Formance: Is Formance really open source?

Yes. The core ledger is MIT licensed with full source access and no deployment restrictions.

.NET MAUI: Is this the same as Xamarin?

It is the successor. Xamarin.Forms was retired in 2024 and Microsoft provides migration tooling from it to MAUI.

Formance: Does Formance move money?

No. It records and orchestrates movements; the actual payments happen at a PSP or bank you connect.

.NET MAUI: How long is each .NET version supported?

Even-numbered releases get Long Term Support (around three years); odd-numbered releases get roughly eighteen months, and MAUI follows that same .NET release cadence.

Formance: What does the enterprise version cost?

Not published. It is an annual subscription quoted per customer.

Formance: Do I have to use Numscript?

Yes for anything beyond the simplest transfers. It is how multi-party transactions are expressed atomically.

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