Tech blog
Lessons learned from projects — stack, architecture, IT business.
Low App Rating on Google Play and the App Store — Why It Happens and How to Raise It
How the stores calculate your app rating, how to find the real causes of one-star reviews, what to fix first, how to reply to reviews and ask for ratings within Google's and Apple's rules — plus a 90-day plan.
App removed from the App Store or Google Play — how to get it back
Removed, suspended or just not visible? The most common reasons apps are removed from the App Store and Google Play: policy violations, no updates, inactive accounts, expired Apple membership, EU trader status — and how to restore the app step by step.
Mobile app crash monitoring — Crashlytics, Sentry and Android vitals in practice
How to set up mobile app crash monitoring that actually works: choosing a tool, symbols and source maps, Android vitals thresholds, the crash-free users metric, alerts, GDPR in crash reports and gradual releases.
Mobile app modernization: migrating to Jetpack Compose and SwiftUI without rewriting everything
When migrating to Jetpack Compose and SwiftUI pays off and when it doesn't. How to do it gradually alongside product development, which pitfalls to watch out for and roughly what it costs.
Developer disappeared: what to do with your mobile app in the first two weeks
Your developer disappeared and the app needs fixes? What expires first, how to inventory access, what to do without the code or the store account, how to get around a lost signing key, and whether the app is actually yours.
How to transfer an app to another Google Play and App Store account without losing users
How to transfer a mobile app to your company's Google Play and App Store account while keeping users, ratings and reviews. What moves with the app, what doesn't, and the post-transfer pitfalls: push, keychain, Firebase and Sign in with Apple.
App not working on the new Android or iOS? What changed and how to fix it
Failures after a system update come in two waves. What changed in Android 16 and 17 and in iOS 26 and 27 — edge-to-edge, the back gesture, Liquid Glass, mandatory UIScene — how to diagnose it and in what order to fix it.
Mobile app maintenance contract — SLA, scope and what to put in writing before you need it
What a mobile app maintenance contract should cover: scope of work, billing model, an SLA that separates response time from fix time, ownership of accounts and code, GDPR and how the engagement ends.
Updating an old Flutter or React Native app — how to upgrade the framework after years
Your Flutter or React Native app hasn’t been updated in years and won’t build? What most often blocks the update (null safety, the New Architecture, Gradle, 16 KB pages), in what order to upgrade the stack and how long it takes.
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