My quiz-based mobile app is fully built in Flutter and the final Android (.aab) and iOS (.ipa) builds are ready. I already hold a Google Play developer account, but I still need to open and configure an Apple Developer account. From there I’d like you to manage the entire publishing flow on both stores and run a closed test with exactly 14 participants before we go live. Here’s the flow I have in mind: • Google Play – Use my existing account, create the listing, upload the build to an Internal testing track, and invite 14 testers through email links. – Handle content ratings, privacy policy upload and any policy declarations so the app passes review. • Apple App Store – Guide me through setting up the Apple Developer Program (enrolment, D-U-N-S, certificates, App Store Connect access). – Configure TestFlight, upload the iOS build, and distribute it to the same group of 14 testers. – Prepare the live listing: screenshots, app description, keywords and compliance items such as age rating and privacy details. • Testing coordination – Provide a shareable sheet or dashboard that tracks which users have accepted the invitations and downloaded each build. – Collect any crash logs or tester feedback and hand them back to me in a structured form. Once both stores approve the builds, the job is done. You should be comfortable with Flutter build pipelines, Google Play Console, App Store Connect, TestFlight and standard store-compliance hurdles (GDPR consent, COPPA where applicable).