Retrofitting Offline-First Into a Rork App: Persistent Cache and a Write Queue
Reviews kept saying the app was blank on the subway. Polishing error screens was not enough, so I retrofitted TanStack Query persistence and an offline write queue into a Rork-generated Expo app. Optimistic updates, reconnect flushing, and keeping the layer safe from regeneration are all covered with code.
Checking Age Without Collecting Birthdays — Wiring the Declared Age Range API into a Rork App
How to use the iOS 26 Declared Age Range API to receive an age band without ever storing a birthdate, with both the Rork Max native Swift path and the standard Rork (Expo) native-module bridge, plus where to draw the responsibility boundary.
Notifications You Can Finish Without Opening the App — Interactive Notification Actions for Rork Apps
Those buttons and text fields that appear when you long-press a notification. Here is how to implement interactive notification actions in a Rork-built Expo app for an experience that completes without launching, including the background-execution pitfalls.
Landing Users on the Right Screen Right After Install — Deferred Deep Links for Rork Apps
When someone follows a campaign link and installs through the store, the 'where did they come from' context is gone by launch time. Here is how to implement deferred deep linking in a Rork-built app without any third-party SDK.
Making Your Rork App's Ad ROI Visible — Mapping SKAdNetwork Conversion Values to Revenue
If you run acquisition ads for a Rork-built app but can't tell which campaign is profitable, the reason is almost always that you never mapped SKAdNetwork conversion values to revenue. Here is the 6-bit design, taken all the way to implementation.
I Initialized Ads Before Restoring Purchases, and Paying Users Saw a Banner Flash — Cold-Start Ordering for Rork (Expo) Apps
Consent, ATT, ad SDK init, purchase restore, and remote config all try to run in the same few hundred milliseconds at launch. Get the order wrong and a paying user sees a banner flash, or measurement fires before consent in the EEA. Here is how I fold a Rork-generated Expo app's startup into a single orchestrator and kill the races by design.
Keeping Expo Push Tokens from Slipping Through the Cracks in Production
After adding re-engagement push to a Rork-generated Expo app, the delivered count came in well below the active install count. The cause was missed token updates and stale tokens left to pile up. Here is the lifecycle I settled on, with code: registration, refresh, server storage, and pruning.
Keeping Login Alive in a Rork-Built Expo App — Preventing Token-Refresh Races with Single-Flight
Add login to the Expo app Rork generates and it works at first, but in production the 'I got logged out on my own' reports creep in. Most are token-refresh races. This covers a reliability design that single-flights refresh, stores tokens safely, and handles expiry correctly.
Designing Apps That Keep Working When the Signal Drops — Optimistic Updates and Resolving Conflicts on Reconnect
Make the Expo apps you build with Rork keep responding even when the signal drops in a subway or elevator. We assemble optimistic updates that move the screen first, and conflict resolution that reconciles when the connection returns, in working code.
The Users You Cut Off as Churned Were Still Willing to Pay — Implementing Grace Periods That Keep Access Alive
A failed renewal is not a cancellation. If you revoke access during the grace period, you throw away recoverable revenue. Here is how to tell grace, billing retry, account hold, and real churn apart in a Rork (Expo) app, keep access during grace, and guide users back.
Stopping the Slow Drift of Colors and Spacing on Every Regeneration with a Single Source of Design Tokens
Every time Rork regenerates a screen, button colors and spacing shift a little. Here is a design that freezes your tokens in one place and steers generated output to always reference them.
Drawing the Line Between Rork Max's Swift Output and the Expo Build
Rork Max now generates native Swift, while the standard Rork keeps producing Expo (React Native) apps. Here is how to split responsibilities between the two engines inside a single app business, viewed from real maintenance cost.