App ideas
4 min read
How to check an app idea before you build it
A practical order of checks — problem, demand, alternatives and a decision rule you set in advance.
Notes on building mobile products
How to find app ideas, check demand before writing code, read a category instead of copying its leader, and tell a real signal from a pretty number. Every piece answers one question and keeps observations separate from guesses.
Competitors
3 min read
How to read a category instead of copying its leader
What the top of a category actually tells you, and why the apps just below it are usually more informative.