What we have built.

Five products of our own, live on the App Store, Google Play, and the web. Not mockups: everything here is shipped and maintained by this team.

GoBrain

iOS · Android · Web

Brain puzzles: a fast 2048 plus daily logic mini games, built on an H5 game engine and packaged as native apps with over-the-air updates. Leaderboards, streaks, and offline play included.

PixiJSTypeScriptCapacitor 6FirebaseProtobuf

Play in the browser Website

GoBrain Play Store screenshot: slide, merge, and breathe

GoBrain Play Store screenshot: five games, one quiet place

GoBrain Play Store screenshot: Zip, trace one flowing path

GoBrain Play Store screenshot: Patch, fit every colorful shape

Slide, merge, and breathe

ProFocus Play Store screenshot: focus timer, focus in one quiet block

ProFocus Play Store screenshot: pick the clock you love

ProFocus Play Store screenshot: your photos on a frame

Analog standby clock

ProFocus: Frame & Timer

iOS · Android · TV

Turns a spare phone or tablet into a desk clock, focus timer, and WiFi photo frame. No ads, no account, no tracking.

Swift / UIKitJava AndroidFastifySocket.IO

App Store

AI speaking coach

Hack Não 1500 English

iOS · Android · Web

Offline English vocabulary with an AI pronunciation and grammar coach that runs entirely on the phone. No server, no connection needed.

Flutterllama.cpp / GGUFBLoC

Web app

Manifest

iOS · home-screen widgets

A Vietnamese lunar calendar for iOS: cultural reminders, holiday explorer, home-screen widgets, Live Activities, and Dynamic Island support.

SwiftUISwift 6WidgetKitApp ClipsLive Activities

App Store

Lunar calendar home screen

App Preview

Open source · macOS · Windows · Web

A local tool to assemble, preview, and QA an App Store / Google Play listing before shipping: sync screenshots and metadata from both stores, diff New vs. Current, run a store SEO (ASO) audit, and work through a first-release checklist.

Open sourcePythonTauri

GitHub Live demo

App Preview tool: Google Play store-listing preview

Store-listing preview tool

Capy Run Play Store screenshot: ready, set, run

Capy Run Play Store screenshot: dodge trains, jump, slide

Capy Run Play Store screenshot: pick your runner

Capy Run Play Store screenshot: grab coins, break records

Ready. Set. Run!

Capy Run: Capybara Runner 3D

Android

Endless 3D runner: dash, dodge trains, and escape through a vibrant city as a cute capybara (or a dragon). Pick a character, beat your best run.

3D RunnerIn-app purchases

Google Play

Want something like this of your own?

The same team that built these products can build yours. We usually reply within two business days.

Start a project