Independent Android developer
Android products built to be found, tried, and downloaded.
I am Quang Chien, building practical Android apps for documents, automation, photo editing, music making, battery personalization, and quick entertainment.
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- Android products
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- Featured app
About the developer
Focused on Android utilities that solve one job clearly.
I design and ship Android apps with a direct product goal: make the value obvious, keep the workflow fast, and help users complete real tasks from their phone.
The portfolio spans signature extraction, automated tapping flows, AI photo editing, music creation, fun mini experiences, and charging screen personalization.
quangchiennnn@gmail.comFeatured app
Signature Extractor turns signing into a fast mobile workflow.
Extract handwritten signatures, create digital signatures, place them on documents, and keep them ready for future signing.
Signature Extractor
A practical app for professionals, students, and freelancers who want to move from paper signing to a clean digital signing process.
- Extract signatures from photos or camera shots.
- Create custom digital signatures with multiple styles.
- Add signatures and watermarks to documents and images.
Download the portfolio
Six Android apps, each with a direct path to the Play Store.
Every product card includes store access and a QR code for quick phone downloads.
Store page contact