Useful Tesla utilities

Mobile app (Android and iOS) that connects to a Tesla's CAN bus through an OBD2 adapter. Read-only — it changes nothing. Shows real battery-side mileage (from the pack since factory), remaining capacity, current cell-group imbalance, battery and motor temperatures per group, live power/current draw, trip data (charged/regenerated/spent kWh), 0–60 timing. Indispensable for used-car checks — you see the true battery state in five minutes.

Pricing

App itself: $9.99 one-time on Google Play / App Store. You also need an OBD2 adapter: budget ELM327 ~$15, premium OBDLink MX+ ~$80; plus a Tesla-specific adapter cable ~$30. Total first purchase $55–120 depending on adapter quality; no subscriptions after that.

Telegram bot that decodes your VIN to show exactly what was pre-installed at the factory: battery pack, Autopilot options, Supercharging, color, interior, etc. Useful when buying used — cross-check spec against the car's actual state.

Pricing

1 request per month free. After that — 129 Telegram Stars per request. Package deals coming soon.

Open-source app you deploy on your own server with a single docker compose. It polls the Tesla API and stores everything in Postgres: every drive with route and kWh consumption, every charging session with the curve, monthly battery degradation, vampire drain, geofenced zones (home / work / anywhere you mark). Ships with pre-built Grafana dashboards and an MQTT broker for further integrations. Data lives on your server — nothing is reported back to the developer.

Pricing

The app itself is free, AGPLv3. The full stack (TeslaMate + Postgres + Grafana + Mosquitto) comes up via docker compose; you need a box with ≥2 GB RAM running 24/7 — a small VPS, a home NAS, or a Raspberry Pi 4 will do. That's your infrastructure cost; the developer doesn't charge.