Autonomous trip recording
Trips start and stop on their own from gear-position events (D/R → P). Brief stops stitch into one journey. Zero driver input, with manual override when you want it.
v2.9 · Runs on your car's screen
Your BYD's hidden telemetry,
Your BYD's hidden telemetry,
finally on the dashboard
BYD Trip Stats is a standalone analytics app that runs directly on your DiLink head unit — reading live data straight from the vehicle SDK. Autonomous trip recording, real-time range projection, charging-curve analysis and battery health, all stored 100% on your car. No cloud, no companion bridge.
14heatmap dimensions
1 Hzlive telemetry loop
0data leaves the car*
20+supported models
Everything your BYD knows — visualised
The app polls the vehicle SDK directly and turns raw CAN-bus telemetry into a rich, offline analytics suite that the factory infotainment never gave you.
Real-time range projection
A consumption model fed from the BMS discharge counter — not the static factory estimate — self-calibrates over a rolling 10 km window and is bounded by WLTP.
Live motor & power telemetry
Per-axle motor RPM, power split, gear, speed, regen detection — plus HV/12 V bus voltage, tyre pressures and temperatures where the car exposes them.
Battery health & degradation
SoH over time with a least-squares trend line that projects the year your pack reaches the 80% warranty threshold. Cell voltage spread and thermal delta included.
Charging-session analysis
Full power / SoC / voltage / temperature curves while charging. Overnight and remote sessions are reconstructed from SoC deltas even when DiLink sleeps the app.
Deep charts & heatmaps
Custom Canvas charts for every metric, 14 correlation heatmaps with crosshair bin read-out, and a physics-based per-trip energy breakdown (drag, rolling, gradient, regen).
Offline route maps
OpenStreetMap route overlays with energy-event markers, rendered fully offline so your trips draw on the map without any connection.
Filter, sort & export
Multi-field filtering, six sort criteria, daily/weekly/monthly/annual consumption views, and per-trip export to CSV, JSON or a self-contained HTML viewer.
Optional integrations
Opt-in ABRP upload, outbound MQTT for Home Assistant, an offline-first PWA web companion, and encrypted Telegram or local backups. All disabled by default.
Range you can actually trust
Most cars show you a single static estimate. BYD Trip Stats models your real Wh/km from the same BMS total-discharge counter that feeds the live consumption readout — then projects forward in three tiers.
- Live trip — a rolling 10 km window with EMA smoothing and a 3 km stabilisation period for the current drive.
- Historical speed bins — engages within ~0.2 km of moving, so the projection leaves the catalog baseline almost immediately.
- WLTP baseline — an upper bound that prevents implausible numbers during slow urban starts.
Every projection is compared continuously against the BMS estimate with a signed delta, so you always see how the model differs from the factory guess.
Built for the rotating DiLink screen
Adaptive landscape, portrait and split-screen layouts. The palette mirrors the DiLink Ocean Series dark and light themes.
Local-first by design
By default, nothing leaves your car. All telemetry, trips and charging data live in an on-device database. Network access only happens for integrations you explicitly switch on.
Zero default telemetry
No tracking, no crash reporting, no analytics, no ads.
GDPR-aligned
The app itself collects and transmits no personal data.
You own the destination
Opt-in flows send only to endpoints you configure.
| Opt-in integration | What's sent | Where |
|---|---|---|
| Telegram backup | Encrypted database file | Your own private bot |
| MQTT | Live telemetry JSON | A broker you specify |
| ABRP | Live snapshot (SoC, speed, GPS) | ABRP, via your token |
Supported BYD models
Any DiLink 3.0 vehicle on Android 10+. Tested primarily on the Seal; other models depend on how close their firmware is. BEV and PHEV (DM-i) both supported.
- Seal
- Dolphin
- Atto 2
- Atto 3
- Seal U
- Seagull / Dolphin Surf / Atto 1
- M6
- Seal 6
- Sealion 5
- Sealion 6
- Han
- Tang
- + DM-i PHEV variants
Optional extras — a way to say thanks
The whole app is free and stays free. Pro is a one-time unlock for a few premium extras — mostly a thank-you that helps fund development. It's verified entirely on-device: no account, no subscription, nothing leaves your car.
Cards dashboard layout Pro
A larger, fully customisable dashboard — big, well-spaced tiles in place of the central chart. Drag to reorder them, show or hide the ones you want, and tap the Range tile to open the projection chart full-size. It even reflows to a compact single screen in split-screen.
Neon theme Pro
A pure-black, OLED-friendly dark theme whose power-metric digits and accent stripes glow like neon, with a subtle accent edge on every card.
Cell imbalance alert Pro
Get notified when your pack's cell-voltage spread stays above a limit you set — an early warning for a weak or failing cell, watched while you drive or charge.
Battery health report Pro
Export a printable PDF or HTML report of your State of Health, decline rate and the projected date you hit 80% — useful evidence for resale or a warranty claim.
SD-card backup Pro
Save the full trip database to a folder on a removable SD card — off-device redundancy that survives an app uninstall and can be read on any computer.
Dashboard screenshots Pro
Tap the BYD logo to save a pixel-perfect screenshot of the live dashboard straight to your Downloads — handy for sharing your screen.
One-time · Lifetime · Per vehicle
€9.99
Pay once, unlocked forever on that car — no subscription, no account. The code is tied to your vehicle, so it only ever unlocks the car it was bought for.
- Install the free app and open Settings → Pro.
- Scan the on-screen QR with your phone (or copy your Vehicle ID) to email it to bydtripstats@gmail.com.
- You'll get a reply with payment instructions (€9.99) and a personal unlock code.
- Paste the code in — Pro unlocks for your car, for good.
Good to know
Do I need a subscription?
No. The app runs fully standalone on supported vehicles. Integrations like MQTT and ABRP are optional and disabled by default.
Is it really free, as I see premium features?
Yes, the app is completely free for personal use. Premium features are essentially for those users who wanted to show their gratitude for the work put into the project. Those premium features will remain as a "good thing to have" but will not be a part of the app's core functionality. Pro is a one-time €9.99 unlock (lifetime, per vehicle) — see the Pro section above for exactly what it includes.
How do I buy a Pro licence?
Install the free app, then open Settings → Pro and scan the on-screen QR with your phone (or copy your Vehicle ID) to email it to bydtripstats@gmail.com. You'll get a reply with payment instructions (€9.99, one-time) and a personal unlock code to paste in. The code is tied to your car, so it only unlocks that vehicle and survives app updates.
Can I use the app without side-loading?
Not currently. The long-term goal is for BYD to ship something like this natively. For now it's a side-loaded APK. If you want assistance with how to side-load, you can visit this page here (https://github.com/DeBondor/byd-unlocking-guide/blob/main/README_EN.md)
How do I install it?
Download the signed APK from GitHub Releases, enable installation from unknown sources on your DiLink unit, accept permissions by following the on-screen prompts, then pick your model on first launch.
Will it drain my 12 V battery?
Impact is minimal — the 12 V is continuously topped up from the high-voltage pack while the car is off. You can always set the app to minimal (reduced functionality) or off.
Is my data secure?
Yes. Everything stays on-device by default. The only outbound traffic is the opt-in Telegram, MQTT and ABRP integrations you configure yourself, plus a read-only update check.
Does it work on other BYD EVs besides the Seal?
If you car runs DiLink 3, regardless of being BEV or PHEV, then you can most definitely run the app.
Where can I find more information?
Scroll down to the bottom of the page, you can find the github link (viewing source code and reporting bugs) and the discord community invitation-link for everything else. You can also send me an email if you prefer, just click the relevant button
Put your car's data where you can see it
Free, source-available, and built by a BYD Seal owner running it on production hardware today.