colima_mx · --:--:-- UTC−6 services / maui-project-rescue

.NET MAUI project rescue, before the deadline.

The launch date can't move and the app isn't ready. Maybe it crashes in release builds, a store rejected it, or the team that built it is gone. Our senior .NET MAUI engineers read the code and run it on devices. We tell you what can ship by the date, then fix it.

Same day fix merged after a
Google Play rejection
1 business day to reply to
your message
01 / Signs // when-to-call-us

Signs your .NET MAUI app needs a rescue.

Four problems we fix in existing .NET MAUI apps.

01 / Sign

Crashes and errors after an update

The app worked on your test devices but fails for users. We traced iOS and Mac finalizer-thread crashes to freed native objects, and this work continues. We also fixed a Windows MSIX startup crash. A startup schema check now stops SQLite "no such column" errors on old installs.

Release buildsiOS + MacWindows MSIXSQLite
02 / Sign

A store rejected your .NET MAUI app

Store review blocked your release over permissions, privacy or another policy. We find the cause and prepare a fixed build for review. Still on Xamarin or .NET 8? See our Xamarin app store deadline page.

Google PlayPermissionsStore review
03 / Sign

Something broke after a .NET upgrade

A .NET or Android API upgrade changed how screens draw or behave. We find what changed and fix the screens. The case below shows one: .NET 10 edge-to-edge on Android API 36.

.NET 10Android API 36Layouts
04 / Sign

The binding source is lost

Nobody can rebuild the native SDK bindings. A public-sector app lost its original binding code, so we rebuilt its iOS and Android bindings. More on how we rebuild lost native bindings.

Lost sourceiOS bindingsAndroid bindings
02 / How it works // deadline-triage

How a .NET MAUI project rescue works.

It starts with deadline triage: we look at the real app before anyone promises a date.

What deadline triage covers

First we build your app. Then we run it on real Android and iOS devices, and on Windows or Mac if you ship there. We read your crash reports and the code around each failure. You get a list of what can ship by your date, what can't, and what each fix needs.

Taking over a .NET MAUI project from another team

We often start in code we didn't write. The first step is the same triage: build the app, run it on devices and read the code. NorthStar's Order Entry restaurant POS was a UWP app and a separate iOS app. We moved it to one .NET MAUI codebase while their team kept adding UWP features.

When binding code is lost, we rebuild it with our native SDK binding services.

Fixing crashes in release builds and in production

Some crashes only happen in release builds, where code is trimmed and compiled differently. We start from the crash reports in a tool like Sentry, then reproduce them on devices with adb and logcat or Xcode Instruments.

Other crashes show up in crash reports from users' devices. On one field-service app, we traced a family of iOS and Mac crashes on the .NET finalizer thread to native objects that were already freed. We moved HTTP clients to the managed SocketsHttpHandler and now dispose native image objects on time. This work continues. Old installs also hit SQLite "no such column" errors after new fields shipped. A startup schema check now adds missing columns without losing local data or unsynced changes.

If the app is slow but not crashing, see our .NET MAUI performance optimization service.

How we fix a .NET MAUI app without new breakage

A rescue fails if each fix breaks something else. On that field-service platform, we wrote a pull request check that fails when new code catches an exception and hides it. The unit test suite grew from 72 test methods in March 2026 to 2,847 in September 2026.

Getting to a fixed launch date

After triage, we fix what must ship by the date first. Everything else goes on a list for after launch. Elanco came to us with an urgent deadline for an iOS app that tracks salmon health processes. We delivered on time.

Our .NET MAUI experts work US business hours (UTC−6), so we can join your standups as the date gets closer.

Is your date at risk right now? Tell us your deadline and we start with triage on the real app.

03 / Selected work // rescue-proof

Crash, store and upgrade fixes on one .NET MAUI app.

The crash fixes above come from this same field-service platform.

01 2026
Field-service platform · Upgrade breakage · Store rejection

A .NET 10 upgrade that broke layouts, and a store rejection cleared.

.NET 10 made Android pages edge-to-edge by default, so screens drew under the status bar. We fixed the layouts in the same release that moved the app to Android 16 (API 36). When Google Play rejected an update over photo and video permissions, we removed the unneeded permissions and merged the fixed release the same day.

Same day
rejected release fixed and merged
Edge-to-edge
.NET 10 layout change, fixed
72 → 2,847
unit tests, Mar to Sep 2026
.NET MAUI.NET 10Android API 36Google Play

Is your launch date at risk? Tell us the date and what is failing.

My deadline is at risk
04 / Process // how-a-rescue-runs

From your first message to support after launch.

You decide what happens after each step.

01 ───

We reply

We reply within one business day. On the first call we ask about your date, your platforms and what is failing.
1 business day
02 ───

Deadline triage

A fixed-scope first step. We build the app, run it on real devices, and read the crash reports and the code.
Fixed scope
03 ───

Rescue plan

A list of what can ship by your date, what can't, and what each fix needs. You choose what to cut.
What can ship
04 ───

Engineers on it, then support

Our engineers fix the items on the plan, most important first. If you want us to stay after release, we agree on that support before launch.
Launch and after
05 / FAQ // rescue-questions

Questions about a .NET MAUI project rescue.

Q.01

We reply within one business day. On the first call, we tell you what is possible by your date. We don't promise a start date before we know your app.
Q.02

Yes. Taking over another team's .NET MAUI code is normal work for us. To start we need the repository, your crash reports and the device models you ship on. When binding code is lost, we rebuild the native SDK bindings from the vendor's files.
Q.03

Yes. We agree on the scope before we start. Triage ends with a list of what can ship by your date and what can't.
Q.04

We can. After delivery, NorthStar kept a Lemon Labs developer on for support and bug fixes.
Q.05

Yes. We can sign your paper, or use ours.
// 06 let-s-talk

Tell us the date.
We'll tell you what ships.

My deadline is at risk
// reach-us
contact@lemonlabs.mx +1 (779) 232-9848

Av. de los Diamantes 53–9
Residencial Esmeralda Nte.
28017 Colima, Colima, México