All Articles
When Bumping Push to Three a Day Cut Next-Week Returns — Field Notes on Measuring Notification Frequency by D7 Retention and Opt-Out Rate
The assumption that heavier push means more returns was quietly eroding my D7 retention. These are field notes on re-measuring notification frequency by install-cohort D7 and opt-out rate, and walking from three a day back to one.
Handing Over an App — What an App Store Transfer Carries, and What You Rebuild
A practical look at App Store Connect app transfers when selling or moving an app: the eligibility criteria, what carries over (ratings, subscribers, iCloud data), what you rebuild (TestFlight, APNs, merchant IDs), and the three places users actually feel the change.
Sunsetting an App Well — Designing the Path from Update Freeze to Full Shutdown
What to do with an app whose revenue no longer covers its server bill. A three-stage decision table, a CDN-based sunset flag with TypeScript implementation, a data export path, and the practical order for winding down auto-renewable subscriptions.
When Rork Max's Two-Click Submit Stalls, Tell Which Layer Broke
Rork Max's one-click install and two-click submit fold the complexity of iOS shipping into four hidden layers. When the abstraction leaks and your submission stalls, this map helps you tell which layer failed and fix it yourself.
Stop Spinning Up a Separate Server: Colocate Your Backend With Expo Router API Routes
Standing up yet another Worker just to receive a RevenueCat webhook gets old fast. Expo Router API Routes let you put the backend inside the same repo as your app. Here is the implementation, from signature verification to picking a deployment target.
The Generated Screen That Quietly Jams at AX5 and in German — Putting Layout Resilience Checks on Rork Max SwiftUI
A record of running every Rork Max generated SwiftUI screen through pseudolocalization and the largest text size to find exactly where it jams. Covers when to reach for ViewThatFits, ScaledMetric and layoutPriority, plus the snapshot checks that catch regressions every time you regenerate.
Walk Through an App Store Submission Without Writing Code — Sticker Packs as a Dress Rehearsal
An iMessage sticker pack is one of the few things you can ship to the App Store with zero code. It cannot make money — and that constraint is exactly what makes it a clean rehearsal for the submission process.
Your AR Furniture Is Gone by Morning — Persisting Placements with ARWorldMap
AR apps generated by Rork Max lose every placed object on relaunch. Here is the design that fixes it: when to save an ARWorldMap, how to encode custom anchors, how to handle the relocalization wait, and what to do when relocalization simply never lands.
Shipping Notifications Without Asking First — Provisional Authorization in Rork Apps, and the Expo Snippet That Quietly Undoes It
iOS lets you start delivering notifications with no permission dialog at all, via provisional authorization. The catch: expo-notifications reports granted as false for provisional devices, so the registration snippet in Expo's own docs re-requests permission and fires the very dialog you were avoiding. Here's why granted lies, a hook that models authorization as five states, how to write notifications for quiet delivery, when to ask for the upgrade, and how to keep provisional out of your CTR.
The Three-Minute Video That Kept Failing — Moving Rork's Gemini Uploads Off the Worker
How I rerouted video uploads to the Gemini Files API from a Cloudflare Workers relay to a direct device-to-Google path — why the 128MB isolate limit breaks the relay, how to hand out a resumable upload URL without leaking your API key, and how resolution and frame rate actually decide the bill.
The Update That Failed Because a Profile Expired Three Months Ago
Apple signing assets expire quietly and nothing tells you. Here is how to count the days left with the App Store Connect API and put the audit on a weekly Cloudflare Workers cron.
Killing the Export Compliance Prompt in Rork Builds for Good
Every Rork and Rork Max build lands in App Store Connect with a Missing Compliance warning. Here is how to decide whether you qualify for the exemption, and how to set it once in app.json or Info.plist so the question never returns.