Gomoku — First to Five in a Row
Gomoku with three computer difficulties, local two-player on one phone, undo and win-loss records, now on Google Play and Apps in Toss
Fadongkwon Soft
Fadongkwon Soft
A solo developer building small apps after work — and writing down what the process actually taught me.
Adding Hearts to Games With Nowhere to Put a Rewarded Ad
Pure score games have no hint, no undo and no revive, so there is no hook to hang a rewarded ad on. Here is the shared entry-ticket module we built for seven games, and the two traps we walked into
Brick Breaker — Bounce, Break, Repeat
A brick breaker with endless levels, a ball that keeps speeding up, power-ups, one free revive per run and records, now on Google Play and Apps in Toss
Without a Rule, the Same Bug Comes Back — The Day I Flipped the Site's URL Scheme
English readers who clicked the privacy policy got stranded on the Korean site. The cause was that only the home page followed the opposite rule — the root was English while every other path defaul...
Solitaire — The Klondike You Already Know
Classic Klondike solitaire with auto-collect, undo, a daily deal and auto-save, now on Google Play and Apps in Toss
14 Mini Apps, 13,365 KRW in Four Weeks — My Full Ad Revenue Numbers
Every in-app ad number from 14 mini apps on Apps in Toss, broken down by day and by app. 13,365 KRW over 27 days, 2,073 impressions, 6.45 KRW per impression. Why eCPM varies twentyfold between apps...
Why the Consent Sheet Never Appeared — I Wrote the Rule Down and Never Applied It to the Existing Apps
Five days ago I called it my last mistake. I was wrong. The console showed approved, active and delivered every day, while the number of people receiving anything stayed at zero. If the group code ...
Minesweeper — Read the Numbers, Avoid the Mines
Minesweeper with three difficulties, a flag mode, and a cell-size option you can change mid-game, now on Google Play and Apps in Toss
2048 — Slide and Merge Your Way to the 2048 Tile
A clean take on 2048 with undo, a daily challenge that gives everyone the same board, statistics and auto-save, now on Google Play and Apps in Toss
The Code Said "Not Supported" — It Had Been Working All Along
The Apps in Toss build of Hangul Monsters hid its speech mode entirely and ran listening-only, because the code hardcoded available:false on the belief that the Toss WebView had no speech recogniti...