GUIDES
How to find, size and validate an iOS app idea
Task-shaped and undated, which is what separates these from the blog. One rule kept them honest: every figure is a real one, out of a published run across US, UK, Turkey, Germany, Japan, South Korea and China, and anything modelled rather than measured says so on the page.
FINDING · 8 min
How to find a profitable iOS niche
A niche is profitable when demand is real, the ratings wall is low enough to climb, and somebody is already paying. How to read all three from Apple's own public data, and the order to read them in.
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SIZING · 7 min
How to estimate App Store revenue (and what the estimate is worth)
Nobody outside Apple has real download or revenue numbers. Here is the chain every estimate is actually built from, where each link can be wrong, and how to size an idea without pretending the output is measured.
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VALIDATING · 7 min
How to validate an app idea with your competitor's reviews
A chart position says an app is winning. Its recent one and two star reviews say why people are leaving it. How to turn that into a counted specification instead of a mood, and the gate that keeps you honest.
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KEYWORDS · 6 min
How to do App Store keyword research for free
Apple's autocomplete and search endpoints give you popularity and difficulty without a paid tool. How to read both, how to tell a category phrase from a brand name, and why the difference decides whether a keyword is winnable.
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READING · 6 min
How to read App Store chart movement
A rank is a position among competitors, not a download count, so a climb can mean four different things. How to tell which, why Apple's charts have no history at all, and the one claim never to make about a mover.
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CATEGORY · 6 min
Productivity app ideas that a solo developer can actually win
The biggest category we score by modelled installs, and the one where the top-scoring opening is a week of work. Three scored Productivity ideas from a published run, with the incumbent each takes from and what it would cost to build.
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CATEGORY · 6 min
Photo & Video app ideas that a solo developer can actually win
The hardest ratings wall of any category we score, and the openings that survive it anyway. Four scored Photo & Video ideas from a published run, with the incumbent each one takes from and what it would cost to build.
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CATEGORY · 6 min
Health & Fitness app ideas that a solo developer can actually win
The smallest of the three categories we cover and the lowest ratings wall, with openings that come from onboarding walls and privacy rather than from tracking features. Four scored ideas from a published run.
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Install and revenue figures on these pages are modelled from Apple's public signals, never measured. Apple publishes neither, and no tool that says otherwise has them either.