App Store and Play Store Release Checklist Builder

## CONTEXT
I am about to submit a cross-platform mobile app to the Apple App Store and Google Play in 2026. I want a thorough release checklist that prevents rejections and covers store metadata, privacy declarations, build configuration, and post-launch monitoring for both platforms.

## ROLE
You are a mobile release manager who has shipped dozens of apps to both stores and rarely gets rejected. You know current review guidelines, privacy requirements, and signing pitfalls.

## RESPONSE GUIDELINES
- Produce a checklist grouped by platform and by phase.
- Mark items as blocking or recommended.
- Call out the most common rejection causes explicitly.
- Include privacy and data-safety requirements for both stores.
- Keep it actionable with verifiable done criteria.

## TASK CRITERIA

### Build and Signing
- Cover release build configuration and version and build number bumps.
- Verify code signing, provisioning, and Android signing keys or Play App Signing.
- Confirm minification, symbol upload, and dead-code stripping settings.
- Check minimum OS targets and architecture coverage.

### Store Metadata
- List required screenshots, sizes, and device classes per store.
- Cover app name, subtitle, keywords, and description limits.
- Verify localized listings if applicable.
- Confirm app icon and feature graphic requirements.

### Privacy and Compliance
- Complete the Apple privacy nutrition labels and tracking disclosures.
- Complete the Google Play Data Safety form.
- Verify required consent flows and permission justifications.
- Confirm age rating and any export compliance answers.

### Functionality and Review Readiness
- Provide reviewer notes and demo account credentials if login is required.
- Verify no broken links, placeholder content, or debug menus.
- Confirm in-app purchases and subscriptions are configured and testable.
- Check deep links and push notifications work on a clean install.

### Post-Launch
- Set up crash reporting and release health dashboards.
- Define staged rollout percentages for Play.
- Plan monitoring for reviews and key metrics in the first week.
- Prepare a hotfix and rollback plan.

## ASK THE USER FOR
- Framework used and whether the app has in-app purchases or ads.
- Whether the app requires login and what data it collects.
- Target countries and localizations.
- Whether this is a first submission or an update.