A solo developer building small apps after work — and writing down what the process actually taught me.
On October 24, Apps in Toss emailed that Tap Bird had been selected for its partner growth program. From October 26, Toss itself runs a "browse a mini app for 10 seconds, earn points" promotion and...
We never applied, yet a congratulations notice was waiting in the Play Console. Teachers and specialists reviewed Math Monsters and approved it as a good app for children aged 6 to 12, so it now ca...
In a pre-release check of FreeCell, Spider and Pyramid, I found the standalone builds of all three contained no card images at all. They had only been borrowing Solitaire's deck inside the hub, so ...
The first icons for seven certification apps were two Korean characters like "care" or "drive," and they were rejected. That day I made the hub icon spec the rule for every app, a dark background w...
I re-ran all 100 levels through a solver to check that later levels really are harder. The rank correlation between level number and minimum pushes, box count and search nodes came out at 0.95 to 0...
Opening Search Console showed 79 percent of the Korean posts sitting in "Discovered, currently not indexed," while Korean queries surfaced the English root pages and clicked through at nearly zero....
I wrote 7,200 original practice questions for five Korean certification exams, care worker, cosmetologist, cook, baker and forklift or excavator operator. This covers the copyright call to avoid pa...
I grouped about fifty standalone apps into nine hubs, Puzzle Cafe, Brain Check, Arcade, Board Duel, Olympics, Lucky Lab, Daily Quiz, Lucky Pick and Card Games. Here is why I built each hub as a mul...
The 50-app workspace cap on Apps in Toss blocked every new hub registration. Shutting apps down did not free a slot because apps pending shutdown still count, so I withdrew ten shutdown requests an...
Around October 22, when Apps in Toss split exposure into released, recommended and boosted tiers, my Toss ad revenue fell to about 60 percent of its peak week. Breaking the ledger down across 46 ap...