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ASO Engine vs RejectProof

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ASO Engine compared with RejectProof
DetailASO Engine logo ASO EngineRejectProof logo RejectProof
What it doesResearch App Store keywords, translate metadata with your own OpenAI key, and review global pricing Find out why Apple will reject your app before you submit
StageNot given Not given
FoundedNot given Not given
Based inUS TR
Pricing modelFree Paid
Pricing$0 free to use for the current release. OpenAI API usage for AI translation is billed separately to your API account. Free: 10-question metadata review with no account. One app: $12 for full 54-point scan with 3 days of unlimited re-scans. Five apps: $39 ($7.80 each) for 5 credits. Studio: $99 for 20 apps ($4.95 each). One-time payment, no subscription. All prices exclude VAT.
Key features
  • Keyword research with estimated popularity and difficulty scores
  • Competitor analysis showing public app listings and keyword rankings
  • App rank tracker for monitoring position by country
  • Metadata translation using your own OpenAI API key
  • Price Parity for reviewing in-app purchase and subscription pricing across territories
  • Protected Keychain credential storage
  • Apple Silicon and Intel Mac support
  • Native Mac app with no browser dashboard required
  • Drafts and review workflow before publishing changes
  • macOS 15 or later support
  • 54-point binary and metadata checks covering privacy, runtime, app completeness and provisioning
  • Each issue includes guideline number, evidence and plain-English fix
  • Support for Expo, Xcode, Rork, a0 and Bolt builds
  • Privacy-first approach with JSON-only server communication
  • Rejection guarantee refund if approved app marked as passing fails review
What makes it different
  • Native Mac app designed specifically for App Store research workflow, not a web dashboard
  • You control your own credentials and API keys stored in the Mac's Data Protection Keychain
  • Use your own OpenAI key for metadata translation with no separate AI service subscription
  • Review and edit translations and pricing changes as drafts before publishing to App Store Connect
  • No account or checkout required to download and use the current free release
  • One-time payment per app with no subscription
  • Unlimited re-scans for 3 days after purchase to verify fixes
  • Built by an iOS developer with focus on preventing avoidable rejections
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)9 −3 (down) since last checkNot checked yet no change since last check
Trust Flow (Majestic)73
Citation Flow (Majestic)2015
Referring domains (Majestic)68

6 details filled in for both companies.

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