Flutter articles, videos and packages

Build a Quiz App in Flutter: Full Guide

by Muhammad Uzair

Quiz apps are one of the most useful projects a Flutter developer can build. The pattern shows up everywhere: exam prep, language learning, driving theory, onboarding quizzes, and trivia games. Undern...

How Much Does It Really Cost to Build a Mobile App in 2026?

by Israr Kundi

How Much Does It Really Cost to Build a Mobile App in 2026? How much does it really cost to build a mobile app in 2026? A simple app costs about $5,000 to $12,000 to build through a freelancer and $10...

Flutter App Redesign with pen.dev and Claude Code Skills: From Pencil Designs to Verified Screens

by Michał Król

TL;DR Kurvenheld is a motorcycle app built in Flutter for iOS and Android. Together with the agency blindwerk I redesigned all of it: 23 screens, 28 design cells in pen.dev. It's live in the App Store...

Hide the status bar while scrolling in Flutter without layout jumps

by Frank Milvus

A chat screen is mostly a reading surface. On a phone, the system status bar, the floating conversation header and the pinned-message bar can eat well over a hundred density-independent pixels at the...

My wire-size calculator had the right tables and still gave the wrong answer

by Andrii Zhukovskyi

I'm a platform engineer. Kubernetes, Java, AWS, that kind of work. I am not an electrician, and for the last few weeks I've been building a calculator for electricians. This post is about the mistake...

Dart แบบ Dart Dart EP297: Let's try Gemini Enterprise on AI Pass

by Anuchit Chalothorn , on Flutter Pro

สรุปและสาธิตการใช้งาน *Gemini Enterprise* ผ่านระบบ *AI Pass* ซึ่งเน้นกลุ่มผู้ใช้งานที่ต้องการนำ AI ไปใช้ในมิติที่หลากหลาย ตั้งแต่ผู้ใช้ทั่วไปจนถึงนักพัฒนา โดยมีประเด็นสำคัญดังนี้: - *การใช้งาน Gemini...

Autonomous Database Evolution in Flutter/Dart: Dynamic Schemas, Zero-Downtime Migration & Self-Healing for AI Agents

by QuantumVoid

Abstract: As AI agents and automated operations (O&M) systems transition into the era of long-lived continuous operation, the traditional persistence paradigm—freezing data models at compile time and...

Tested like a QA engineer: how I release mobile apps

by Mohamed Elgohary

TL;DR I have a QA/SDET background alongside my mobile engineering work, and I release apps the way a tester would: assume the happy path works and spend the effort on everything around it. My public r...

Our Flutter app's purchase events vanished before the user logged in

by HS Solution

Our billing code logged store_ready on every cold start. On some starts, that event never reached the server. The billing layer was fine. Our own analytics wrapper was throwing the events away. This i...

I convert 1,000 won to $1 in my stock game. I'm still not sure the cents are right.

by BT_Sun

I'm a junior solo developer from South Korea. I use a translator to help me write in English. I'm making Daily Trader: Stock Game. You watch the chart, read the news, and trade stocks with virtual mon...

Google Play 12 testers rule: a 14-day closed testing plan

by ExtensionBooster

Originally published on AppRanker. If you opened a new personal Play Console account recently, the Google Play 12 testers rule is probably the thing standing between your finished build and the produc...

Five memory leaks that kill Flutter apps on older phones

by Stacklyn Labs

A memory leak happens when your app holds on to objects it no longer needs, so the Dart garbage collector can't free them. On a modern phone with 8 GB of RAM, a leak can hide for a while. On an older...

How I Parse Recipe Ingredients in Six Languages Without a Server

by Hyorinmaru

Kerfuffle is the recipe app I built because I wanted my recipes on my phone, and nowhere else. No account, no server, no ads, no analytics. I built it solo, in Flutter. With no server to call, a share...

Stop Wasting Time on Boilerplate: Instant Null-Safe Freezed & Dart Models in VS Code

by Abdulrahman Maslmany

As Flutter developers, how many hours have you wasted manually typing Dart data models from complex, nested JSON responses? Handling deeply nested APIs, ensuring strict null-safety, writing fromJson /...

Laporan Praktikum: Autentikasi dan Otorisasi (RBAC) di Flutter + Supabase

by Muhammad Dhiyaul Atha

Laporan Praktikum: Autentikasi dan Otorisasi (RBAC) di Flutter + Supabase Nama: Muhammad Dhiyaul Atha Tanggal praktikum: 10 November 2026 Aplikasi: NEO AUTH — aplikasi contoh login/register dengan dua...

ROS 2 QoS Meets Flutter: Delivery Policies for Responsive Dashboards

by vmodal_ai

ROS 2 Quality of Service settings influence whether a Flutter dashboard receives fresh data, delayed data, or no data. Match QoS to the meaning of each topic instead of applying one policy everywhere....

Flutter + ROS 2: QoS-Aware Telemetry Aggregation for Operator Dashboards

by vmodal_ai

This advanced tutorial treats Flutter as the operator-facing presentation layer while wearable SDKs, Jetson services, ROS 2 nodes, and NVIDIA-accelerated inference handle device-specific or compute-he...

Google XR + Flutter: Rendering Budgets for Spatial Companion Interfaces

by vmodal_ai

This advanced tutorial treats Flutter as the operator-facing presentation layer while wearable SDKs, Jetson services, ROS 2 nodes, and NVIDIA-accelerated inference handle device-specific or compute-he...

Flutter + Meta AI Glasses: A Production-Ready Integration Architecture

by vmodal_ai

The problem Flutter is a strong cross-platform UI layer, but device capabilities such as camera streaming, permissions, registration and audio often live in native SDKs. Treating glasses as an ordinar...

I Built the Recipe App I Actually Wanted

by Hyorinmaru

I cook at home most days. Rice, chicken, sometimes a pasta night when I feel like a restaurant. For a long time my recipes lived everywhere: screenshots, notes, open browser tabs, a few just in my hea...

Patches Welcome #2: A D-pad Bug That Only Showed Up When You Pressed Up

by Sagar Ghag

Pressing Up on an Android gamepad fired dpadDown. Pressing Down fired dpadUp. Left and Right worked fine. The bug lived in a single sign comparison, but finding which sign comparison took longer than...

Automatic voice-message transcription in Flutter: a quiet queue

by Frank Milvus

A voice message arrives. You tap play, and the text is already underneath the waveform. It feels like the app read your mind. Under the hood it is a small queue with a few strict rules: transcribe wha...

How to start Android app development in Nepal with Flutter

by Saarathi Academy

If you want to build Android apps in Nepal and you are starting from zero, start with Flutter. Do not start with Java. Flutter lets you build one app that runs on Android and iPhone, and you can test...

How I detect which framework an Android app was built with (Flutter, React Native, Unity...)

by Hamd

I kept wondering which apps on my phone were Flutter, React Native or plain Kotlin. Play Store doesn't tell you, so I built StackLens, an on-device Android app inspector. Here's how the detection work...