Small apps. Sharp tools. Used daily.
CellHubs builds focused software for phones and the browser: a lunar calendar families rely on, driving-test prep, a fines lookup, a metadata editor and ADB in your browser.
Everything we ship.
9 apps and developer tools, each with its own page, store links, privacy policy and terms.
Lifestyle Lịch Âm Việt
Lunar and solar calendar with auspicious days, zodiac hours, lunar date converter and annual death-anniversary reminders. No annoying ads.
- Android
- iOS
- Web
- Windows
- Linux
Education Thi Lái Xe – 600 câu hỏi
Practice the full 600-question bank for motorbike and car licences with mock exams, topic drills and clear explanations.
- Android
- iOS
Education Thi Lái Xe – 120 câu mô phỏng
120 simulation situations with clear video, detailed solutions, mock exams and progress tracking for B1, B2 and C licences.
- Android
- iOS
Utilities iPhatNguoi
Look up traffic violations and fines by licence plate. Available on Android, iOS and the web at iphatnguoi.com.
- Android
- iOS
- Web
Photography ExifTool
Quickly view, modify or remove EXIF, GPS, IPTC and XMP data from photos, video and audio on Android. Free and offline-capable.
- Android
- iOS · soon
Tools Total Media Converter
A fast, simple tool for converting between media formats including photos, video and audio.
- Android
Developer Tools ADB Kit
A local-first browser workspace for Android: mirror and control a device, capture screenshots and recordings, install APKs, stream logcat and move files over WebUSB.
- Web
- Android · soon
Photography SnapID Mark
Add professional timestamps and watermarks to your photos instantly, with customizable date, time and location stamps. Coming soon.
- Android · soon
- iOS · soon
Tools WidgyKit
WidgyKit is a new CellHubs product currently in development. Details will be announced at widgykit.com.
- Android · soon
- iOS · soon
Few features. Done properly.
ADB Kit — Android debugging without installing anything
Plug in a phone, open the browser, and mirror, record, install APKs and stream logcat. Runs locally over WebUSB. An Android companion app is coming soon.
Open ADB Kit →Platforms
Android, iOS and the web, with the same care on each.
Fluff
No bloated onboarding. Open, do the thing, close.
Languages
This site is available in six languages, with apps built for Vietnamese users first.
Policies you can find
Every product has its own Privacy Policy and Terms of Use page.
Learn something useful.
Practical guides on metadata, ADB, lunar dates, driving tests and more.
Convert Video to MP3 on Android: Formats Explained
How to extract audio from a video or convert media formats on Android, plus a plain-language guide to MP4, MKV, MP3, AAC and FLAC, quality and file size.
ADB Cheat Sheet: Screenshot, Screen Record, Logcat
A practical ADB command cheat sheet for Android: list devices, take screenshots, record the screen, install APKs, filter logcat and push or pull files.
Use ADB in Your Browser with WebUSB (No Install)
Connect an Android phone to your computer and use ADB straight from Chrome or Edge with WebUSB. No platform-tools download needed. Step-by-step setup guide.
Pick one. Install it. Tell us what you think.
Feedback shapes the roadmap. Write to cellhubsapp@gmail.com.
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