Your hotfix, on devices, before the meeting ends.
PatchForge delivers signed JavaScript & asset updates straight to your React Native users — KB-sized diffs, staged rollouts, one-click rollback. No store review in the loop.
free tier · no card required · 5-minute SDK setup
The pipeline
What actually ships to a device
Upload a full bundle once. Every returning device gets a tiny signed diff — verified before a single byte of new code runs.
The IPA/APK baseline your users installed.
~20–30 MB− Checkout.tsx+ Checkout.tsx+ assets/banner.png
changed files onlyHash → sign → diff against recent releases. Automatic on upload.
sha256 + RSA-4096Devices bucket deterministically into your rollout percentage.
patch · KB-scaleChecksum ✓ signature ✓ — the patch applies and activates on restart.
✓ verified installSizes illustrative — a typical RN bundle vs. a single-fix diff. Devices too far behind simply get the full (still signed) bundle.
Ship from CI
One command from merge to devices
A CLI and GitHub Action that publish, sign, and deploy in a single idempotent step — re-running a pipeline never double-publishes.
- ✓Personal access tokens, scoped per app
- ✓Auto-incrementing bundle versions
- ✓Works with any CI — it's just one command
$ npx @zimbstech/patchforge-cli release \ --app my-app --channel Production \ --bundle ./build/index.android.bundle# uploading → signing → patching✓ v1.4.0.87 deployed to Production at 10%- Installs
- 4,812
- Crash-free
- 99.8%
- Failures
- 3
- Action
- dial to 100% ▸
Stay in control
Roll out at your pace. Roll back in one click.
Start at 1%, watch installs and crash-free rate live, then dial up. If anything looks wrong, one click re-activates the previous release — devices pick it up on their next check.
- ✓Device-stable bucketing — nobody flip-flops
- ✓Per-release health score
- ✓Rollback needs no store submission
Built for production
Everything between "merged" and "running on devices"
Channels & staged rollouts
Production, staging, or any channel you define. Roll out to 1%, watch the numbers, then dial to 100 — devices bucket deterministically, so nobody flip-flops between versions.
Instant rollback
One click in the dashboard re-activates the previous release on a channel. Devices pick it up on their next check — no store submission, no waiting.
Differential patches
Devices that are one or two releases behind download a binary diff, not the whole bundle. Full download only when a patch would be larger.
Signed & checksummed
RSA-4096 signatures and sha256 checksums verified on-device before a byte of new code runs. A tampered or truncated bundle never activates.
CI/CD in one step
A GitHub Action and a CLI that publish a release from any pipeline with a personal access token. Idempotent — re-running a job never double-publishes.
Release health, live
Downloads, installs, failures, and crash-free rate per release — with a health score that tells you whether to keep rolling out or roll back.
Store-compliant by construction
OTA updates ship interpreted JavaScript and assets only — never native binaries. The pipeline enforces the boundary Apple and Google allow, so your app stays in good standing.
FAQ
The questions engineers actually ask
Is this allowed on the App Store / Play?
Yes — OTA may ship interpreted JS & assets, never native code. The pipeline enforces that boundary; read the compliance notice.
What happens to devices mid-rollout?
Each device hashes into a stable bucket, so a 20% rollout is the same 20% on every check until you change it.
How big are updates?
Returning devices get a binary diff — usually KB-scale. If the diff would be larger than the bundle, they get the full one.
What if a bad bundle ships?
Roll back from the dashboard in one click; the previous release re-activates on the next device check. Bundles are checksummed and signature-verified before running.
Migrating from CodePush?
Same mental model — deployments→channels, keys→appKey. Swap the SDK, point CI at our CLI. Most teams finish in an afternoon.
What does bandwidth cost?
Nothing. Plans meter monthly active devices — delivery to devices is never billed.
Forge your first patch tonight
Free tier, no card. Install the SDK, upload a bundle, watch a device update itself.