ASO tool

ASO tool turns any App Store app into a ready-to-paste 100-character Keywords field for ASC — built for indie developers who don't want a $30-a-month web subscription to do keyword research.

Add an app, click Analyze, and ASO tool will:

• Mine the app's title and description for seed keywords using language-aware stopword filtering (English, German, French, Spanish, Italian).
• Expand every seed with Apple's autocomplete suggestions.
• Run a full competitor scan — narrow mining from your top seeds, then wide mining across every ranked candidate.
• Rank every candidate against the app's real App Store position for that term.
• Score each keyword with a transparent heuristic: rank, source, length, and title-overlap penalty.
• Pack the highest-scoring tokens into a 100-character keyword string — and a 30-character subtitle — that respects every App Store Connect rule.

WHAT YOU GET

• A 100/100-character keyword string, ready to paste into App Store Connect.
• A 30/30-character subtitle suggestion.
• A full breakdown table — every keyword with its rank, score, source, and parent seed.
• A list of mined competitors and the seeds each contributed.
• One-click Copy buttons next to every output.

ON-DEVICE, ALWAYS

ASO tool talks only to Apple's public Search API. No accounts, no telemetry, no cloud sync. Every HTTP response is cached on your own disk, so re-running an analysis after a release takes seconds instead of minutes.

PRICING

• Free — track and analyze one app, with the full pipeline. No watered-down preview.
• ASO Unlimited — one-time purchase . Unlimited apps, forever. No subscription, no auto-renewal.

REQUIREMENTS

macOS 14 Sonoma or later. Network access required for the iTunes Search API.

ASO tool is a developer utility, not a guarantee. It optimises what you can paste into App Store Connect — your screenshots, release notes, and reviews still matter.