VibeMobile — Flutter Companion

VibeMobile is the Flutter companion for VibeCody — a full phone/tablet/desktop client that pairs with a running VibeCLI or VibeCoder instance, streams AI sessions in real time, and hands the session back and forth between devices.

As of v0.5.5 VibeMobile gained URL-only pairing, zero-config mDNS / Tailscale / ngrok discovery, Apple-Handoff-style continuity with desktop and watch clients, and Google-Docs-style full-content sync (no more 80/512-char truncation).

Platforms: iOS, Android, macOS, Linux, Windows, Web — one Flutter codebase.

What’s new in 0.5.5

Platform requirements

Android build SDK — compileSdk = 37 from v0.5.8. permission_handler_android, pulled in by the voice-input microphone permission, declares an AAR metadata minimum of API 37, and :app:checkReleaseAarMetadata fails the release build against anything lower. compileSdk only selects which APIs are available at compile time — minSdk (API 24) and targetSdk are unchanged, so the supported device range is the same. VibeCodyWear is already on 37 for a comparable reason (see Wear OS).

Install

From release artifacts (fastest)

See the Releases page for the current build. For v0.5.5:

From source

# Prerequisites: Flutter ≥ 3.2.0, Xcode (iOS/macOS), Android Studio + SDK (Android)
cd vibemobile
flutter pub get
flutter run            # launches on the currently-selected device

# Release builds
make -C vibemobile ios-ipa         # signed .ipa (needs APPLE_TEAM_ID)
flutter build apk --release        # Android APK
flutter build appbundle --release  # Android AAB for Play Store
flutter build macos --release      # macOS .app
flutter build linux --release      # Linux bundle
flutter build windows --release    # Windows .exe
flutter build web --release        # static web bundle

Pair with VibeCody in 30 seconds

Pairing produces a short-lived challenge, the phone signs it with its Keystore/Secure-Enclave P-256 key, and the daemon returns a JWT.

Path A — QR code (desktop nearby)

1. Desktop: start the daemon.

   vibecli --serve --port 7879
   

2. Desktop: in the REPL or VibeCoder Governance → Watch Devices, click Pair Device.
3. Phone: open VibeMobile → Pair → scan the QR code. Done.

Path B — URL only (new in 0.5.5, works on emulators)

1. Desktop: run /pair --url-only in VibeCLI (or click Show URL in VibeCoder).
2. Phone: VibeMobile → Pair → Paste URL → confirm.

The URL encodes host:port + a one-time bearer token. No clipboard JSON is needed.

Path C — URL + Bearer (manual, air-gapped)

1. Desktop: /pair --show-bearer prints two fields.
2. Phone: VibeMobile → Pair → Manual → paste URL and bearer.

All three paths produce the same JWT. Sessions authenticate with Authorization: Bearer … afterwards.

Home tabs

The Handoff banner appears at the top of any tab when another paired device is active in the same session — tap to pull the session onto the phone.

Connectivity paths

VibeMobile races all reachable paths on every request and picks the fastest one:

1. mDNS LAN — discovers _vibecli._tcp.local. on any IP range; no setup.
2. Tailscale — if the phone is on your tailnet, the 100.x address is used; if the host has Funnel enabled, a public HTTPS URL is shared.
3. ngrok — auto-detected if already running on the host; opt-in auto-start requires an auth token in VibeCLI settings.
4. Manual host:port — always available as a fallback under Settings → Manual Connection.

See the full Connectivity guide for firewall / NAT / corporate-network notes.

Chat & sessions

• Streaming. Every message streams token-by-token over Server-Sent Events. Reconnects automatically on flaky networks.
• No truncation. The 0.5.5 sync model reconciles by message ID and keeps the full transcript — even long code blocks survive the round trip.
• Markdown. Fenced code blocks render with syntax highlighting; copy button per block.
• Voice. Tap the microphone on the chat input to dictate. The on-device recogniser runs first (partial text as you speak, nothing leaves the phone); if it is unavailable the clip is recorded and uploaded to the daemon’s POST /voice/transcribe, which prefers a locally downloaded whisper model and falls back to Groq. Needs microphone permission on both platforms.
• Provider picker. Switch providers or models mid-conversation from the session header.

Handoff continuity

When you’re actively using a session on another paired device (desktop, watch, or another phone), VibeMobile surfaces a Handoff chip at the top of the current screen:

↻ ravi's iMac — Session #1287 · "refactor axum routes"
   [ Pull session ]  [ Mirror ]  [ Dismiss ]

• Pull — transfers stream ownership. The other device goes read-only.
• Mirror — keeps both devices writing; the Google-Docs-style sync reconciles edits.
• Dismiss — ignores, but the chip reappears if the other device is still active.

Secure storage

Credentials never touch plaintext on disk:

Notifications

iOS notifications require granting permission on first launch. Android 13+ requires POST_NOTIFICATIONS runtime permission.

Troubleshooting

Pairing QR code won’t scan

• Dim your display, then try again — QR codes need contrast.
• Switch to Path B (URL only) — paste the URL instead.
• Check the phone can reach host:port (try a browser).

mDNS discovery doesn’t find the host

• Some corporate networks block multicast. Fall back to manual host:port.
• Verify vibecli --serve is running and bound to 0.0.0.0 (not 127.0.0.1).

“Session desynced” banner

This is the reconciliation catch-up signaling a missed event. Tap Reload — the full transcript is fetched and merged.

Wear OS / watchOS continuity not working

The watch must be paired to the same host as the phone. Check Governance → Watch Devices on the desktop.

API endpoints

All calls require Authorization: Bearer <jwt> after pairing. See VibeCLI Server Mode for the full reference.

Related reading

• VibeCLI reference — full REPL + server mode
• Connectivity guide — mDNS, Tailscale, ngrok
• Watch Integration — how VibeMobile relays watch sessions
• Apple Watch guide · Wear OS guide