How to Publish Your First Android App on Google Play: A Complete Checklist
How to Publish Your First Android App on Google Play: A Complete Checklist Publishing your first Android app on Google Play involves more moving par…
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Easy Full Stack Authentication and Login in the Style of Spring
Three requests leave your app just as its access token expires. If each refreshes independently, the first exchange can invalidate the refresh token…
How apps spot an Android emulator (part 1): build props and kernel tells
How apps spot an Android emulator (part 1): build props and kernel tells I spent a few days this month poking at a stock Android emulator to answer…
Android on iOS, Web & Desktop Efficiently and for Free
We are not the first to bring Android to iOS. Earlier projects brought Android's runtime along with the application. Dalvik was built for Android, i…
The Screenshot Was Ready. The Status Bar Wasn’t.
A practical Android screenshot workflow for controlling battery, carrier, signal and status-bar details before export. The app screen looked right.…
Pawdub: a pet translator app that refuses to pretend it translates (Android, on-device)
A dog barks at the front door and a subtitle fades in under him: "THE MAILMAN HAS RETURNED. I WILL HANDLE THIS." That is Pawdub, a new Android app I…
Before You Hand Over a Broken Phone or Laptop: A Practical Prep Checklist
Disclosure: I'm part of the team at CellShoppe Phone & Laptop Fix , a repair shop in West Edmonton, Alberta, that has been operating since 2015.…
Stop Bypassing SSL in Flutter: Solving the Missing Intermediate Certificate Nightmare with AIA Chasing
Stop Bypassing SSL in Flutter: Solving the Missing Intermediate Certificate Nightmare with AIA Chasing Every Flutter developer has run into this mad…
Is Android App Protection Still Necessary After REA? How Should Developers Choose an App Hardening Solution in 2026?
Is Android App Protection Still Necessary After REA? How Should Developers Choose an App Hardening Solution in 2026? 1. Has REA Made Traditional APK…
Introducing the Plans for Župnify
🚀 Introducing the Plans for Župnify We're planning something new at Treved! 🇸🇮 Meet Župnify , a planned app that aims to take the idea behind our ex…
Why HTTPS Won’t Save Your Checkout Flow: Building Zero-Trust State Machines in Kotlin Multiplatform
How to protect multi-step workflows, fin-tech funnels, and Server-Driven UI from step-skipping, state tampering, and replay attacks — with zero runt…
What Apple actually checks: an App Store submission checklist for a health app
Most App Store submission checklists are flat lists. They tell you what has to be true, in roughly the order Apple numbers its guidelines, which is…
Can you migrate to material_ui yet?
What changed, and why For years, package:flutter/material.dart came with the SDK. You installed Flutter, and Material came with it, same version, sa…
Sphinx — your neighbourhood, turned into riddles
What I Built The screen shows one line: I am stone, flat, and written on. One of the dates on me is 1956. Then it goes away. You put the phone in yo…
Google Play DEX Code Optimization in Capacitor Apps
If Play Console shows a "DEX code optimization" finding for your Capacitor app, the Android project template is the cause. From February 2027, Googl…
Should You Leave the SIM Card in an Old Phone Security Camera? A Dual-SIM Guide for Offline, Wi-Fi and Mobile Data Setups
Most old Android phones that become security cameras still have a SIM card inside. Often it is the old number from before the upgrade. Sometimes it…
How to Write a Mobile App Project Brief: Free Template and Example
Originally published on Codent . Turn an app idea into a scope a developer can assess. Includes a free brief, a worked example from Flowboo, and que…
How to Budget Realtime Score Retention Across Cellular Handoffs: API Boundary Patterns
Short answer: make the feed a replayable log with an explicit cursor, and let the client switch from live delivery to bounded backfill whenever a mo…
App Development Cost: 9 Factors That Shape Your Budget
"How much does it cost to build an app?" It is the first question almost every client asks me, and the honest answer is: it depends on what the app…
How to Add Geofencing to an Ionic App
In this tutorial, we build a store reminder page in Ionic Angular: switch on a toggle for a store, and when you later walk within 200 meters of it,…
Designing a Geofenced Attendance System: Haversine, GPS Accuracy and Anti-Spoofing (with Python)
"Only allow check-in at the office" sounds like one if statement. In production it becomes a pile of edge cases: imprecise fixes inside concrete bui…
Native or Cross-Platform? A Practical Way to Choose for Your First Mobile App
"Should we go native or cross-platform?" is the first question on almost every mobile project, and the answer is rarely about which framework is bes…
Privacy Policy for a Small App: What Google Play Requires
A lot of solo developers find out about the privacy policy requirement at the worst moment: the app is built, the closed test is about to start, and…
HealthKit to JSONL vs JSON: one snapshot survives a cut sync, the other gives you nothing
Two apps can write the exact same Apple Health records to disk and behave nothing alike the moment a sync gets interrupted. I benchmarked it on 2026…
Native Desktop Themes for Production Apps
A desktop app needs more than larger versions of its phone controls. Dialogs need their own windows. Title bars, scrollbars, and keyboard focus need…
Ordering, Receipts and Reconnects: The Chat Client Problems That Only Appear on a Bad Network
Ordering, Receipts and Reconnects: The Chat Client Problems That Only Appear on a Bad Network A chat feature demoed on office wifi is a solved probl…
Your Push Request Succeeded. The Device Key Is Dead.
Your server sends a push request and gets a successful response. Somewhere in the target list is a device key that stopped working weeks ago. The re…
On-Device Computer Vision in React Native: Auto-Aligning Progress Photos with MediaPipe and Expo
A person can take thirty photos of the same face and still produce a timelapse that looks like camera shake. On Monday they stand closer to the mirr…
Last-Write-Wins Is Not a Sync Strategy: Handling Conflicts in Offline-First Mobile Apps
Quick Answer: Offline sync conflicts happen when two devices edit the same record before either has synced. Last-write-wins is the default fix, but…
Downloading Files in the Background in Capacitor
If your Capacitor app downloads a large file with fetch , the download dies as soon as the user switches apps for more than a few seconds. In this p…