You can build a genuinely good app and still get rejected because your privacy policy URL returns a 404. You can spend months on a product and lose the name to someone who filed a trademark first. This guide covers everything that happens after the code is done — the part most developers put off until it's blocking a launch. What's inside — 23 pages Domain and subdomain architecture mapped out before you move anything Privacy policy and Terms of Service — what to disclose based on your specific features, which generators to use, where to host it Trademark and copyright — what protection you already have automatically, what needs a USPTO filing, TM vs ® symbols, and when international actually matters Your marketing page — what Apple requires, Netlify deploy in five minutes, Open Graph images for social sharing App Store submission — screenshot specs, the TestFlight process, and every common rejection reason with how to avoid it Google Play submission — keystore backup (lose it and you lose your app permanently), AAB builds, staged rollout, the Data Safety section App Store Optimization — the four levers that move rankings, keyword research tools, and when to prompt for a review GDPR and CCPA — what indie apps actually need to do, plus the account deletion endpoint Apple has required since 2022 A complete pre-launch checklist across infrastructure, legal, marketing, App Store and Google Play Who this is for Developers approaching a first launch who'd rather get it right than fix rejections afterward. Nothing here is legal advice — it's the practical version of what an indie developer actually needs to handle. Guide 03 of the React Native + Django series. Instant PDF download.