CrabXiangqi - Xiangqi Offline
Xiangqi (Chinese chess) that plays fully offline: no login, no account. Play an AI with 5 levels that adapts to your games, and learn with built-in lessons.
Android • iOS
Simple, useful apps
for everyday life.
HaDoSolution is an independent mobile developer from Vietnam. We build lightweight, offline-first apps for music, culture, learning and games on Android and iOS.
- 8
- apps published
- 250K+
- downloads
- 2
- platforms
Our apps
Apps people use every day
Most of our apps work fully offline, so you can use them anywhere, even without Wi-Fi or mobile data.
Lời Bài Hát Offline: Nhạc Việt
A pocket songbook with over 16,700 Vietnamese and international song lyrics. Download once and read anytime, no internet needed.
Lời Vọng Cổ - Ca Cổ Cải Lương
Over 1,170 lyrics of vọng cổ, cải lương excerpts and traditional Vietnamese folk songs, available offline.
Đờn ca tài tử
Scores of over 300 traditional Southern Vietnamese music pieces, with 127 recordings to listen and learn from.
Sách Nói Hay - Audiobook Việt
A carefully curated library of Vietnamese audiobooks on personal growth, business and life skills, with clear narration.
Ca dao - Tục ngữ Việt Nam
Over 17,000 Vietnamese folk verses and proverbs in one compact app. Read a new one every day, even offline.
Music Timer: Sleep Timer
Fall asleep to music without it playing until morning. Pick a time and your music gently fades out and stops. Works with almost any player.
ESL English: Stories & Audio
Improve English reading and listening with 155 short everyday stories, each with its own audio recording.
About
What we care about
Every app we ship follows the same few principles.
Native on Android & iOS
Apps that feel at home on each platform, following Material Design and Apple's Human Interface Guidelines.
Fast & lightweight
Small download sizes, quick start-up and smooth performance, even on older devices.
Privacy first
We collect as little data as possible. Each app has its own privacy policy, linked from its store listing.
Continuously improved
Regular updates based on real user feedback. Your reviews and emails shape what we build next.
Support & contact
Questions, feedback or business inquiries?
We usually reply within 1–2 business days. Please include the app name and your device model when reporting an issue.