How to Overcome TestFlight User Limits
Originally published on the BetaDrop blog . Apple's TestFlight is the gold standard for iOS beta testing. It's built right into the ecosystem and easy…
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How to Inspect AsyncStorage, MMKV, and SQLite in React Native
A surprising number of React Native bugs come from persisted state. An old token, a stale cache, a feature flag that was never cleared, or a SQLite ro…
Shared UI Means Shared Contracts, Not Shared Hosts
A component can compile in a shared assembly and still be impossible to construct in one of the applications that renders it. That is easy to miss whe…
Nobody Hands You Day One: Stepping In as CTO on a Live Product Across Three Runtimes
Most engineering stories start at day one with a clean repo. This one did not, and I think the messy version is the more useful one to read. I stepped…
How to block apps on Android without an AccessibilityService
Almost every app blocker on the Play Store is built on an AccessibilityService . It's the obvious choice: you get a callback every time a window chang…
Google Play Requires Android 16 (API Level 36) by August 31, 2026 — React Native Migration Guide
Google Play has announced that starting August 31, 2026, all new apps and app updates must target Android 16 (API level 36). If you're maintaining a R…
Building Knowzup: Architecting a True Multimedia Q&A App as a Solo Developer in React Native
Building Knowzup: Architecting a True Multimedia Q&A App as a Solo Developer in React Native How I built a cross-platform community knowledge hub …
Firebase Analytics in React Native — Complete Implementation Guide
Analytics is one of the most valuable tools you can add to a mobile application. While building features is important, understanding how users interac…
React Native List Performance — ScrollView, FlatList, SectionList, FlashList
Your feed scrolls fine with 20 items. Ship 2,000 and the UI starts hitching, memory climbs, and “just wrap it in a ScrollView ” becomes the bug report…
I built foku — a minimal pomodoro timer with no ads, no account, no clutter
Every pomodoro app I tried wanted something from me before letting me work: create an account, sit through ads, sync to a cloud I didn't ask for, or e…
Building the AI Fallback Ladder Behind LOCK TF IN (an app that roasts you into working out)
I just shipped my first solo iOS app: LOCK TF IN — a fitness accountability app where an AI drill sergeant roasts you when you skip a workout. Log a s…
I hit a wall so I built AppKeep for product lifecycle management and more
Appkeep I have 5 (hopefully 7) mobile apps launched. I have to monitor each one from their reviews, churn, dependencies, crash reporting and new featu…
Building Recourse.ai: A Parametric Insurance Prototype for the Age of Agentic AI
Every enterprise I've talked to in the last year has the same story: AI agents are being deployed faster than risk and compliance teams can review the…
Your Paywall May Not Be the Leak: Audit These 5 Subscription Handoffs First
A subscription app can have a polished paywall and still lose the sale somewhere else. The store listing may attract the wrong intent. Onboarding may …
How to Display a PDF Inside Your Adalo App (iOS, Android & Web)
If you've tried to show a PDF in Adalo and ended up frustrated, this is the article I wish existed when I started. The Problem Every Adalo Developer H…
Nobody Painted That Rectangle Black
Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is free and source-available on Github. Star git-lr…
I Didn't Memorize the Android ViewModel, I Derived It From 8 Problems( Interview Prep)
Every ViewModel tutorial I read handed me the finished file: @HiltViewModel , a private MutableStateFlow , a public StateFlow , viewModelScope.launch …
Mobilerun vs DuoPlus: Which one to choose?
Both Mobilerun and DuoPlus put mobile devices in the cloud and let you automate them and both can run many social media accounts at scale with automat…
Stop Uninstalling Your App to Test Staging and Production: A Proper Multi-Environment Setup for Mobile Development
reactnative #expo #mobile #frontend If you've worked with a web app before, you know how convenient it is to run staging/development and production si…
What Makes Healthcare App Testing Different from Every Other App Category
A patient opens their prescription and sees 500mg instead of 50mg. A lab report displays "Normal" when the value is critically high. A teleconsult dis…
One Tap, Public URL: Building an Android App for Secure Port Forwarding
As developers, we've all been there. You have a web server, API, dashboard, or IoT service running locally, and you need to share it with someone outs…
How I export 1.2-gigapixel images on an iPhone without running out of memory
Rendering a big image on iOS is one of those things that looks trivial until your app gets killed by the OS mid-export. CGContext , draw, makeImage() …
Why I Built Buildsdrop: An App Distribution Tool That Doesn't Get in Your Way
If you've ever shipped a mobile app to a client, tester, or QA team, you've probably used Diawi. It's been the default answer to "how do I get this AP…
More Surfaces, Same Deal: Cars, Sensors, Commerce, Video And Builds
Last week's release post was about funding open source without the bait and switch. This week's release tests that idea again, because two of the new …
[Android] Pray First — a prayer app that locks distracting apps until you pray (looking for beta testers)
I’ve been building a Christian prayer app called Pray First, and I’m looking for people to help test it before launch. The idea: instead of scrolling …
Testing In-App Chat and Customer Support Flows in Delivery Apps
The help button is the most important button in your delivery app that your QA team almost never clicks during regression. Every delivery app has an i…
Wiring Designers Into Your EAS Preview Loop
TL;DR Figma reviews miss everything that's a function of the real device — touch targets, scroll momentum, keyboard behavior, font substitution, dark-…
Hello World! 👋 I'm Pablo, Android Dev & Creator of Aura Finance
Hi everyone! 👋 I’m Pablo Martín, a Mobile Engineer and Android Architect based in Spain. For over 5 years, I’ve been building, scaling, and leading na…
How AI Is Changing the Way We Manage Photos on Mobile
Your phone camera roll is a data problem dressed as a UX problem. The average iPhone user has over 5,000 photos. Most of them are never looked at agai…
Shifting Mobile Security Left: Applying SAST to Android Apps with MobSF
TL;DR — I took an intentionally vulnerable Android application, ran the static analysis engine of MobSF (Mobile Security Framework) via a local Docker…