Need an App Idea? | Marcus Kim

Need an idea? / Free research

Test categories, keywords, competitors, and buyer personas until the market signal is clear. Review Radar returns real public App Store reviews, shows the pain and praise behind the idea, and turns that signal into a version-one direction before you decide whether to turn it into a custom Screen Design Pack.

No checkout required to explore
10 apps, 100 selected reviews per crawl
Crawls may take a few minutes

Research Inputs

Fill this out, get a research-backed direction.

Category, keywords, competitors, and customer profile go in. A review-backed first-app angle comes out. Edit and crawl again as many times as you want.

Email App category Keywords Competitors or examples Ideal customer

Crawl Logic

10 apps. 100 reviews. One sharper version-one angle.

Find competitors Compare pain and praise Return the MVP angle

We use public review signal to reduce guesswork. No revenue or demand promises.

Read the full crawl method

Market signal first

Explore review pain and praise before paying for a custom app-design package.

Clear MVP angle

See the target buyer, repeated pain, product wedge, and first build direction.

Custom Screen Design Pack

When the signal is strong, turn it into custom screens, tokens, a stack plan, and an AI-readable project folder.

Build-ready direction

Your paid pack includes screen assets, build prompts, QA, integrations, and launch direction for the platform you choose.

Clear next decision

The research helps you decide whether the problem is worth pursuing before you spend time building.

Manual QA path

Use app links and review IDs to verify the market signal before committing to the idea.

Find a smaller app opportunity hiding in public reviews.