Yuyang Wang

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2026 · TestFlight beta

Tessalytics

An open-source TeslaMate client for iPhone with live telemetry, trip history, and battery analysis.

TestFlightGitHub
  • iOS
  • Open source
  • Data

Screens and demos

Live speed, power, battery, efficiency, and position data.
Tessalytics battery analysis screen with range and degradation charts
Battery health estimates calculated from charging history.

Tessalytics is a native iPhone client for a self-hosted TeslaMate server. It provides a mobile view of live driving data, trip history, charging, and battery health.

Platform
iOS · SwiftUI, SwiftData, Swift Charts, MapKit
Data source
Connects directly to your TeslaMate instance
Live view
Driving telemetry streamed over server-sent events
Status
Open source, unofficial, in TestFlight

What it does

  • Live telemetry. While the car is moving, the app subscribes to a server-sent event stream and shows speed, power, battery, and location.
  • Drive and charge history. Past drives, routes, and charging sessions are shown with MapKit and Swift Charts.
  • Battery health. The app estimates battery degradation on the phone using your charging history.

Privacy and offline use

The app connects directly to your TeslaMate server. There is no Tessalytics backend, and analysis runs on the phone. Data is cached with SwiftData so history remains available offline.