Every app, built end-to-end by one person.
Consumer apps on Google Play and the App Store. Each one earns its place by solving a single everyday problem well.
01 · For couples · formerly Amor AI
Duoly in Love
A private, gentle space for one couple — a daily ritual for keeping the small moments and staying connected. Not a social network, not a tracker.
Count your days together
Total days, years–months–days, or your start date. Tap to switch.
Story & notes
A line or a page, with photos. Memories settle into a warm wall.
Duo — a private line
Pair with a code; chat with moods, photos and a shared look.
Milestones & big days
Day 100, day 1000, anniversaries — with share-ready keepsake cards.
A mood a day
One tap. A 7-day rhythm that is a sentence, not a score.
Widgets & AI
Day count on the home screen; AI suggests words when they run out.
Free keeps the core. Premium — monthly, yearly or lifetime — adds AI without limits, premium keepsakes, five fonts and app lock. Prices shown in-app.
ESTIMATED GAIN
+7,6%
on 8 chỉ · reference price
02 · Personal finance
Kim Tài · Tick Vàng Online
Your gold book, in your pocket. Know what you hold and what it is worth — a tracking tool, not an invitation to invest.
Holdings book
Chỉ or Lượng, 9999 or 24K; cost and value in one glance.
Reference prices
DOJI, PNJ, SJC and more — buy, sell and update time, by region and product.
Private by design
Holdings stay on your device. Biometric lock, if you want it.
Five Elements · Premium
Kim, Mộc, Thuỷ, Hoả, Thổ skins — and no ads.
Displayed prices are for reference only — not transaction quotes or investment advice. Kim Tài does not sell gold.
Indie games that paid their own way — no team, no funding, just Unity and late nights.
QUIZ · ANDROID + iOS
KBC Quiz Game
A “Who Wants to Be a Millionaire”-style quiz: 15 difficulty levels, lifelines, and a monetization model that worked.
PUZZLE · ANDROID + iOS
Woody Hexa Puzzle
A hexagonal puzzle that tests spatial thinking — warm wood textures, a calm loop.
ENDLESS RUNNER · ANDROID + iOS
Katsu Ninja · Dark Moon Knight
A dramatic endless runner about a ninja saving his village. Took third prize in competition.
3rd prize