Xamarin is dead. Here is how we migrate your app to React Native.
Xamarin reached end of life in May 2024. Microsoft pushes .NET MAUI; the React Native path is honest, native, and stable. We audit first, surface what's reusable, then migrate on a flat fee. No starting over from scratch unless that's the only honest answer.
Audit-first · Flat-fee · Senior-led · 30-day stability window
Migration outcome
9-month Xamarin migration, dual-store approval in 4 weeks
We took a healthcare Xamarin codebase off life support and rebuilt it on React Native. Dual-store submission cleared in 4 weeks. The client's team owned the new codebase before the engagement closed. Per-engagement numbers from a recent rescue, not a company-wide average.
Read the full case →If any of these sound familiar, you need a migration
These are the situations we take on routinely. Each one says the same thing: Xamarin is no longer carrying its own weight.
Xamarin support ended May 2024 and your app is still on it
Microsoft officially ended Xamarin support. No more security patches, no more SDK updates, no more App Store compatibility runway. Your app is running on borrowed time.
App Store or Play Store SDK rejections are starting to surface
Apple and Google bump minimum SDK requirements every year. Xamarin SDK targets are falling behind. Submissions that worked last release start getting rejected on metadata or platform compatibility grounds.
Microsoft's .NET MAUI path doesn't fit your team
MAUI is the official upgrade path, but it's still maturing. Your team has React or React Native experience, or you'd rather hire developers who do. The talent pool for React Native is an order of magnitude larger than MAUI.
Hiring or contracting against Xamarin has gotten painful
Senior developers refuse to take Xamarin contracts. The few who will charge a premium because they're betting against the stack. You're paying more for fewer options every quarter.
Build times, crash rates, and cold starts are all trending the wrong way
Old Xamarin builds get slower as the runtime stack ages. Crash reports cluster around platform compatibility issues nobody upstream is patching. You're spending engineering time on infrastructure, not features.
You're locked into a stack your investors and acquirers can't price
Due diligence on a Xamarin codebase in 2026 is a red flag, not a neutral fact. Acquirers discount the price; investors discount the round. The stack itself is a liability on the balance sheet.
How a Xamarin migration actually runs
Four stages. Clear, concrete steps. Every step has a deliverable you can point to.
Paid Technical Audit
Mandatory first step. Read-only repo access. Standalone product. You walk away with a written report whether or not you move forward with the migration.
Every migration starts with a Technical Audit: read-only repo access, real-device testing on what's still shipping, and a severity-ranked findings report. We map what's reusable (business logic, data models, API contracts) from what's Xamarin-specific dead weight (UI code, platform glue, MVVM scaffolding). This is non-negotiable: migration quotes without an audit are guesses, and guesses cost you money.
Migration plan
We turn the audit's findings into a flat-fee migration scope. You see the plan, the stack choice, and the dollar number before any migration work starts.
The audit tells us what we're working with. We turn that into a flat-fee migration scope: which modules port over, which get rewritten, which can stay in Xamarin temporarily during a phased cutover. You always know the ceiling before we start. If the audit shows the only honest path is a full rebuild, we tell you and re-scope as a Build, not a stretched migration.
Executed migration
Hands-on rebuild. Read/write repo access, daily builds, weekly sync. We ship in the order the audit and the migration plan prioritized.
Stop the bleeding first: anything blocking your next App Store or Play Store submission. Then we move feature-by-feature, business logic first, UI second. Daily builds to your team, weekly sync with your stakeholders, and we keep the old Xamarin app shipping until the React Native build is ready to replace it. No feature work sneaking in through the side door.
Handoff and stability window
Handoff docs to your team (or a new contractor), plus a 30-day stability window. Then you pick your next path.
Your team, or a new contractor, takes the wheel with a handoff package built to be read, not filed. Operational runbooks, architectural decision records, and an onboarding doc for the next engineer. A 30-day stability window follows handoff: we respond to anything the migration surfaced in production. After that you pick: maintain in-house, contract someone, or graduate to a Partner retainer for ongoing ownership.
Outcomes from a recent Xamarin migration
Per-engagement numbers from a healthcare React Native migration, not a company-wide average.
9 months
Full Xamarin to React Native cutover
4 weeks
Dual-store approval after submission
$25k+
Published migration pricing starts here
How much does a Xamarin migration cost?
Audit-first, quoted fast. Flat-fee migration scope from the audit's findings. No estimates, no stretched engagements.
Xamarin to React Native Migration
Starting at $25,000 · audit first, then quoted
Audit-first ($2,500 Quick Scan or $5,000 Full Audit). Flat-fee migration scoped from the audit's findings. Deposit + milestones. 30-day stability window after handoff.
Engagements typically run $25k to $200k+ depending on codebase size, surfaces in scope, and what's reusable. The audit gives you the dollar number before any migration work starts.