Validate your App Store and Google Play metadata against exact character limits. Title, subtitle, keyword field, and description — all checked in real time with a live search result preview and actionable optimization tips.
App Store metadata limits: 30 characters for the app title, 30 characters for the subtitle, 100 characters for the keyword field, and 4,000 characters for the description. Google Play metadata limits: 30 characters for the title, 80 characters for the short description, and 400 characters for the full description. Use every available character — don't waste space. Avoid repeating title words in the keyword field, use singular forms, and separate keywords with commas. This free tool validates all fields in real time.
App Store Optimization (ASO) metadata is the text that helps users find your app through search. 70% of App Store visitors use search to discover apps, and your title, subtitle, and keywords directly determine which searches you appear in. Screenshots convert the visit — metadata gets you found.
The most important ASO field. Include your brand name plus 1-2 high-value keywords. "Aurora Habits — Habit Tracker" uses 28 characters and targets "habit tracker" searches while keeping the brand visible.
Appears below your title in search results. Use it to target different keywords than your title. "Build calmer routines" targets "routine" and "calm" searches without repeating "habit."
Comma-separated keywords that Apple's search algorithm indexes. Don't repeat words from your title or subtitle — Apple already indexes those. Use singular forms (Apple matches plurals automatically). Don't use competitor brand names — Apple will reject them.
Less important for App Store search ranking but critical for conversion. First 3 lines are visible before "Read More" — make them count. Google Play's description is indexed for search, so keyword placement matters more there.
Metadata gets you found. Screenshots get you downloaded. Nuvex turns your raw app screens into designed App Store screenshots with headlines, backgrounds, and store-ready exports — in 30 seconds.