Test on your phone

Scan one QR code and your Spikefrost app's native mobile companion runs on your phone — no App Store, no developer account, no cables. How the flow works and what to expect.

The Spikefrost Team11 Jul 20262 min read

Every Spikefrost app can have native mobile companions — real iOS/Android apps built by the agent that talk to your app's backend. Testing them takes one QR scan; there's no App Store, no developer account, and no cable involved.

What you need (once)

Install the free Expo Go app on your phone — App Store / Google Play. No account or sign-in is needed.

Don't want to install anything up front? Skip ahead — the QR code you scan lands on a page with the right store button for your phone.

The flow

  1. Ask the agent for a mobile app in the desktop app's chat:

    "Build me a mobile app for this — customers should browse services and book."

    The agent creates it, wires it to your app's live backend, and deploys a preview.

  2. Press the Phone button in the app bar. A QR code appears for each mobile app this app has.

  3. Scan with your phone's camera. A page opens with two buttons: Open in Expo Go (if you have it) and Get Expo Go (if you don't — install, come back, tap Open). Your app renders on the phone in seconds.

  4. Iterate. After every change-and-deploy by the agent, just reopen the app inside Expo Go — the newest version loads automatically. No rescanning, ever; the QR is scan-once.

Several apps, several audiences

One Spikefrost app often serves different people on phones — say an e-commerce backend with a customer storefront, a warehouse picker app, and a back-office app. Each is its own mobile app with its own QR code; ask the agent for them by audience:

"Now build a picker app for the warehouse team."

The Phone panel lists all of them side by side, each independently deployable.

Good to know

  • It's your real backend. The phone talks to your app's deployed API — data you create on the phone shows up everywhere else immediately.
  • Share the QR. Anyone you send the QR page to can test the same way — teammates, clients, your own phone and tablet at once.
  • Expo Go version: the preview requires a current Expo Go. If your copy is outdated, the page tells you exactly what to update.
  • This is testing, not the store. When the app is ready for the world, publishing to the App Store / Google Play is a separate step with store accounts that belong to you — start with the Apple guide and the Google Play guide.

Frequently asked questions

Do I need an account to test a Spikefrost mobile app on my phone?

No. You install the free Expo Go app once (no sign-up needed), scan the QR code, and the app opens. Nothing else to configure.

Do I need to rescan after every change?

No. Scan once; after each new deploy just reopen the app inside Expo Go and the latest version loads.

Can one Spikefrost app have several mobile apps?

Yes — one per audience: for example a customer app, a picker app, and a back-office app. Each gets its own QR code, and the desktop app shows them side by side.

Is this the same as publishing to the App Store?

No — this is instant testing distribution. Store publishing is a separate step with its own accounts and review; see the publishing docs when you're ready.