App Store Guide
The best free tools for your next App Store submission
AcceptMyApp publishes free, no-signup tools for the specific, narrow problems that come up while shipping an iOS app. Here they are, organized by the phase of submission where you'd actually reach for them — not an alphabetical dump.
Before you build: validating the idea
Worth doing before you write code — an idea that's thin, oversaturated, or hard to monetize is cheaper to catch now than after a Guideline 4.2 rejection.
iOS App Idea Generator
Generate a fresh, buildable app idea with a monetization angle.
iOS App Idea Validator
Get an honest grade on an idea before you build it.
iOS App Idea Roaster
A brutally honest, funny gut-check on a raw idea.
App Name Brainstormer
Trademark-cautious App Store name and subtitle ideas.
Metadata and App Store listing
Your name, subtitle, keywords, and description are both a ranking surface and a Guideline 2.3 (Accurate Metadata) risk if they drift from what the app actually does.
Metadata Character Counter
Check name, subtitle, keywords, and description against Apple's limits.
Keyword Field Optimizer
Strip duplicates and wasted characters from your 100-character keyword field.
App Description Writer
Turn a feature list into a review-safe, ASO-optimized description.
Subtitle & Keyword Generator
Title, subtitle, and keyword field candidates from your concept.
Metadata Diff
See exactly what changed between two metadata versions.
Privacy and permissions
The single most common source of automated, same-day rejections — a missing manifest field or a vague permission string is an easy, avoidable fix.
Privacy Manifest Validator
Validate PrivacyInfo.xcprivacy and required-reason API codes.
App Privacy Label Builder
Map your data collection to Apple's App Privacy sections.
Permission Usage String Generator
Write specific, Guideline 5.1.1-safe permission purpose strings.
Info.plist Validator
Validate your Info.plist and catch vague permission strings.
Screenshots and icons
Wrong pixel dimensions or a non-flattened icon are rejected on upload before a human reviewer ever sees the binary.
Screenshot Size Validator
Check screenshot pixel dimensions against Apple's accepted sizes.
iOS App Icon Resizer
Crop and export a flattened 1024×1024 App Store icon.
App Icon Asset Catalog Generator
Generate a complete AppIcon.appiconset with Contents.json.
iOS Color Palette Generator
Build a light/dark palette and export it as Swift or CSS.
Deep linking and entitlements
Not review-blocking by default, but broken universal links and AASA files quietly break the exact flows reviewers sometimes test.
Deep Link & URL Scheme Builder
Build and test a custom URL scheme or universal link.
Smart App Banner Generator
Generate the apple-itunes-app meta tag for Safari banners.
Associated Domains Validator
Validate applinks, webcredentials, and appclips entitlements.
AASA File Validator
Validate your apple-app-site-association JSON against Apple's spec.
Universal Link Path Matcher
See which URLs open your app versus fall back to Safari.
Build and submission housekeeping
The mechanical checks that are easy to skip under deadline pressure and annoying to redo after a rejection.
Bundle ID Validator
Check your CFBundleIdentifier's reverse-DNS format.
Version & Build Number Helper
Validate and increment your marketing version and build number.
.strings & .xcstrings Validator
Catch duplicate keys, malformed entries, and invalid JSON.
Localization Coverage Checker
Find missing and untranslated keys across localization files.
TestFlight Notes Formatter
Write "What to Test" notes within the 4,000-character limit.
StoreKit JWS Decoder
Decode a signed StoreKit 2 transaction or notification into JSON.
After a rejection
If you're already past submission and reading this because Apple said no, start here instead of the top of this list.
Next step
Want all of this checked in one pass, automatically?
Sign in to AcceptMyApp and run a full AI pre-submission review across metadata, privacy, and screenshots at once — instead of working through tools one at a time.
Get startedRelated resources
App Store Guide
App Store Submission Checklist
A practical pre-submission checklist covering metadata, screenshots, privacy, account deletion, and in-app purchases — the things App Review actually checks before approving an iOS app.
App Store Guide
How Long Does App Store Review Take?
Most App Store reviews finish in 24–48 hours, but the real timeline depends on your account history, app category, and rejection loops. Here's what actually moves the clock.