# The best free tools for your next App Store submission

Canonical page: https://acceptmy.app/guides/best-free-app-store-submission-tools

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](https://acceptmy.app/free-tools/ios-app-idea-generator.md)

- [iOS App Idea Validator](https://acceptmy.app/free-tools/ios-app-idea-validator.md)

- [iOS App Idea Roaster](https://acceptmy.app/free-tools/ios-app-idea-roaster.md)

- [App Name Brainstormer](https://acceptmy.app/free-tools/app-name-brainstormer.md)

## 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](https://acceptmy.app/free-tools/app-store-metadata-character-counter.md)

- [Keyword Field Optimizer](https://acceptmy.app/free-tools/app-store-keyword-field-optimizer.md)

- [Free Keyword Popularity Checker](https://acceptmy.app/free-tools/app-store-keyword-popularity-checker.md)

- [App Description Writer](https://acceptmy.app/free-tools/app-store-description-writer.md)

- [Subtitle & Keyword Generator](https://acceptmy.app/free-tools/app-store-subtitle-keyword-generator.md)

- [Metadata Diff](https://acceptmy.app/free-tools/app-store-metadata-diff.md)

## 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](https://acceptmy.app/free-tools/privacy-manifest-validator.md)

- [App Privacy Label Builder](https://acceptmy.app/free-tools/app-privacy-nutrition-label-builder.md)

- [Permission Usage String Generator](https://acceptmy.app/free-tools/ios-permission-usage-string-generator.md)

- [Info.plist Validator](https://acceptmy.app/free-tools/info-plist-validator.md)

## 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](https://acceptmy.app/free-tools/app-store-screenshot-size-validator.md)

- [iOS App Icon Resizer](https://acceptmy.app/free-tools/ios-app-icon-resizer.md)

- [App Icon Asset Catalog Generator](https://acceptmy.app/free-tools/ios-app-icon-asset-catalog-generator.md)

- [iOS Color Palette Generator](https://acceptmy.app/free-tools/ios-color-palette-generator.md)

## 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](https://acceptmy.app/free-tools/deep-link-builder.md)

- [Smart App Banner Generator](https://acceptmy.app/free-tools/smart-app-banner-generator.md)

- [Associated Domains Validator](https://acceptmy.app/free-tools/ios-associated-domains-validator.md)

- [AASA File Validator](https://acceptmy.app/free-tools/apple-app-site-association-validator.md)

- [Universal Link Path Matcher](https://acceptmy.app/free-tools/universal-link-path-matcher.md)

## 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](https://acceptmy.app/free-tools/ios-bundle-id-validator.md)

- [Version & Build Number Helper](https://acceptmy.app/free-tools/ios-version-build-number-helper.md)

- [.strings & .xcstrings Validator](https://acceptmy.app/free-tools/ios-strings-file-validator.md)

- [Localization Coverage Checker](https://acceptmy.app/free-tools/ios-localization-coverage-checker.md)

- [TestFlight Notes Formatter](https://acceptmy.app/free-tools/testflight-what-to-test-notes.md)

- [StoreKit JWS Decoder](https://acceptmy.app/free-tools/storekit-jws-decoder.md)

## 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.

- [Rejection Reason Decoder](https://acceptmy.app/free-tools/app-store-rejection-reason-decoder.md)

- [Reviewer Reply Generator](https://acceptmy.app/free-tools/app-review-reply-generator.md)


## Related pages
- [Free Tools for iOS Developers](https://acceptmy.app/free-tools.md)
- [The App Store submission checklist that actually matches what reviewers check](https://acceptmy.app/guides/app-store-submission-checklist.md)
- [How long does App Store review actually take?](https://acceptmy.app/guides/how-long-does-app-store-review-take.md)

Last updated: 2026-09-09