Dan Tech Indiv. · one person, all the way through
Apps make life more convenient.
A one-person studio from Vietnam. Every app designed, coded and shipped by the same pair of hands.
10M+ downloads · 10+ products shipped · Android & iOS
DUOLY IN LOVE
KIM TÀI
1010! BLOCK PUZZLE
GARAGE TO AGI
KBC QUIZ GAME
WOODY HEXA PUZZLE
KATSU NINJA
Build apps that make people's lives more convenient — and more successful.
Convenience is the product. Success is the outcome. Every app removes one everyday friction, and does that one job well.
Vision
A Vietnamese indie studio whose apps feel inevitable — small, honest and used every day.
01
Convenient by design
One job per app, done well. Counting the days you love. Knowing what your gold is worth without opening a spreadsheet. Nothing added that does not earn its place on the screen.
02
Honest by default
No fake notifications, no simulated activity, no dark patterns. The free tier keeps the core; nothing you create is ever held hostage behind a paywall.
03
Private by design
Your gold book never leaves your phone. Your notes open only when you tap them. Widgets know whether you wrote today — never what you wrote.
dan tech
indiv. · one person, all the way through
Fourteen years of code. Ten of them professional. All of it toward this.
Danh Tran wrote his first line of code in 2012 and turned professional in 2015. The decade in between and after ran through Zalo and ShopBack — code on 100 million devices, five billion messages a day — alongside a string of indie games that paid their own way. In 2026 he went independent to build Dan Tech: mobile apps that serve people's everyday lives.
“I spent five years finding out how a mobile app earns its keep, and five more learning what is worth building.”Read the full story
Used every day, by people who did not have to.
★★★★★
STORE REVIEW
“We count our days together in Duoly and leave each other little notes through the day. It has quietly become our sweetest habit.”
Trinity Le · Duoly in Love
★★★★★
STORE REVIEW
“Managing my gold is finally effortless — every chỉ recorded, its value always in view, and everything stays private on my phone.”
Long Tr. · Kim Tài