I have already purchased a full Flutter system from CodeCanyon and now need it tailored end-to-end before release on both the App Store and Google Play. Here is the scope: • User-facing changes – Rebrand the app with my new name, logo and a refreshed colour palette. – Tweak any layout or design elements necessary to make the new branding feel native and polished. – Add an extra banner slot at the very top of the home screen; this must be controllable from the existing admin panel without altering the current banner position. • Backend & payments – Extend the admin panel so I can upload, schedule or remove that new banner easily. – Integrate Paynow (Webdev Zimbabwe) as the primary payment gateway, ensuring it works smoothly alongside the current checkout flow and records transactions on the backend. • Store preparation – Configure all bundle identifiers, icons, splash screens and permissions. – Produce release builds, pass App Store / Play Store checks and handle initial publishing under my developer accounts. I will supply the logo files, hosting, Paynow keys and any additional assets you need. Once these items are in place and verified in TestFlight / internal testing, we can push the live releases. If you have previous experience with Paynow or similar Flutter payment plugins, plus successful App Store submissions, I’d love to move quickly.