Android field diagnostics · v1.15.0
Multi-protocol bus diagnostics that run on the phone in your pocket
Plug an adapter into an Android phone or tablet and see live bus traffic, decoded signals and diagnostics — CAN and CAN FD, OBD-II, Modbus RTU/TCP and raw serial, with native UDS. No laptop, no account, no connection.
Google Play · Coming soon
The Play Store listing is not live yet. Leave your email address and we will tell you when it is — nothing else is sent to that address.
Demo Mode simulates every protocol, so the app can be evaluated without hardware.
Who it is for
Built for people who work on buses, not dashboards
Workshops
Read manufacturer fault detail through UDS instead of stopping at a generic P-code.
Fleet engineers
J1939 PGN and SPN decode on heavy vehicles, captured and exported from the vehicle itself.
Machinery & agriculture
CAN and Modbus on the same tool, in a field with no signal and no laptop bench.
Embedded developers
Raw serial, ISO-TP, periodic transmit and DBC decode for bring-up and bench work.
Protocol matrix
Four bus families, one app
| Bus | Transport | What it does |
|---|---|---|
| CAN (classic + FD) | USB — PEAK PCAN-USB / PCAN-USB FD, and CANable/SLCAN-class adapters | Live monitor, ID and signal filtering, transmit (single or periodic), DBC signal decode, live plotting, native ISO-TP + UDS diagnostics, J1939 PGN/SPN decode |
| OBD-II | ELM327 over USB, Bluetooth Classic (SPP), Bluetooth LE, or Wi-Fi/TCP | 23 live PIDs, current/pending/permanent fault codes, freeze frame, VIN and ECU info, automatic supported-PID probing |
| Modbus | RTU over USB or Bluetooth serial, or Modbus TCP | Sniffer plus read/write master — coils, holding and input registers, live register plotting |
| Serial | USB, Bluetooth (SPP or BLE), or TCP | Raw terminal with configurable framing |
Full detail per protocol family is on the features page.
The difference
It works completely offline
No account, no sign-in, no telemetry, no analytics SDK, no crash reporter phoning home. Bus and vehicle data is processed on the device and never leaves it unless you export a file and share it yourself. A commercial licence activates with no network connection and keeps working without one.
That is not a slogan, it is a working condition. Workshops in basements and underground car parks have no signal. Field service is often out of coverage for a whole day. And plenty of customers have a security policy that simply forbids a diagnostic tool that calls home — this one has nothing to call.
- accounts: none
- network required: no
- telemetry: none
- analytics SDK: none
- crash reporting: local export only
- licence activation: offline
Pricing
Free tier, Personal, Commercial
| Tier | How it is sold | What you get |
|---|---|---|
| Free | No purchase | 30-day full-featured trial, then free with streaming capped at 10 minutes per session; export and DBC import locked. |
| Personal | One-time purchase or monthly subscription through Google Play | All features for personal, non-commercial use only. |
| Commercial | Sold directly | Perpetual licence for business use. One key per device, transfers free. |