Supermate prices every drive and every journey from the charges that actually filled your battery — and shows what the same distance would have cost in petrol. Compatible with Tesla Model 3, Model Y, Model S and Model X.
Today it connects to a server you host yourself. Supermate Cloud, with nothing to install, is coming soon. How it connects →
30 secondsSee it in 30 seconds
Demo data, shown in the app's own screens.
Folded or open, with list and detail side by side.
Your battery fills from charges at different prices — home, Supercharger, free sessions. Supermate spreads the real price of the charges that filled it over the drives that used it, so every drive carries its own cost, marked ≈.
Consecutive drives — a coffee stop, a Supercharge in between — become one journey on their own, no grouping by you. See every leg on one map, each stop marked with where you stopped, how long, and how much you charged there. Time at the wheel is kept apart from the hours the trip really took — driving, charging and parked add back up to the whole.
Tick a few, get the sum. Tick any run of drives or charges — a weekend away, a work trip — and get the total: distance, energy, cost, and time at the wheel. If they don't join up, it says so: a sum, not a journey.
Charging is usually far cheaper than petrol. Now you can see by how much — for your car, your tariffs, your months. Next to what a drive, a month or a year really cost to charge, Supermate shows what the same distance would have burned in a petrol car.
No pump price to look up. Supermate fetches your country's official monthly petrol price by itself — nothing to type, no key to get. In Spain it's per province; in France you pick E10 or SP95. Anywhere not covered yet, set your own price.
About 30 countries: the EU-27, the UK, Norway and the US — plus Mexico and Peru.
Example figures — yours come from your own charges and tariffs.
Set your electricity tariffs — one price, or a timeline of rate periods per place — and see real figures. Where a number is worked out rather than recorded, it wears an ≈. You always know which is which.
Nothing in your car's data says who's at the wheel — so Supermate makes it effortless instead: assign a weekend of driving in three taps, and on routes you drive often it suggests who, from the pattern. Then it compares two drivers fairly — only on the roads you both drive, and only once there are enough trips — telling a real difference from ordinary day-to-day scatter. It only measures what it can: who drives faster and heats the cabin more, not who drives “better.”
Not sure who drove? On a route you both take often, Supermate suggests the likely driver from the pattern — you confirm, it learns.
Page through a Recap for any month or year — the day you drove furthest, how it stacks up against your usual, how much of your energy went to fast charging, your numbers front and centre. Tap Play to watch it unfold, then send it to whoever you like.
The image carries your figures, never the places you went. And any spot you'd rather keep to yourself — home, a friend's door — drops out of your Recaps for good.
Degradation and cycles, read from your own charges.
Longest journey, best efficiency, biggest day.
Distance, energy and cost across your whole history.
Charge, range and status without pulling out your phone — on the watch face, the Home Screen and the Lock Screen, updating live.
When something is unknown, the app says so. When a figure is an estimate, it wears an ≈ — nothing is ever shown as more certain than it is.
Real screens from the app's demo mode — the same sample car you can explore yourself before connecting anything.
Supermate reads your drives and charges from a logger. Already running TeslaMate? Connect in two minutes. Nothing installed? Supermate Cloud is on its way.
TeslaMate is a free, open-source logger you run on your own computer or server; it records every drive and charge of your car. Supermate connects to it — your car's data stays on your server, with no account.
Everything Supermate shows you, without running a server. Connect with Tesla, and every drive and charge is recorded for you — priced, grouped into journeys and compared with petrol, in the same app.
Planned price: €4.99 a month. Your self-hosted setup keeps working exactly as today — free app, optional one-time Pro.
We'll write once, when Supermate Cloud opens. Nothing else.
Run this on the server that hosts TeslaMate. It adds the TeslaMateApi container next to TeslaMate, generates a token, and prints a QR code.
curl -fsSL https://supermate.app/install.sh | bash
Open Supermate, tap “Scan a QR code”, and point it at the code. Your server address and token fill in on their own.
Doing it by hand? See the manual setup
🔒 The installer only prepares your own server — it exposes nothing. Reach it over your home network, Tailscale or a Cloudflare Tunnel; never open port 8080 straight to the internet.
Reaching it from outside your home? See the connection guide — Tailscale or a Cloudflare Tunnel →
Explore the whole app with a sample car and a month of sample drives — no setup, no data of yours, before you connect a thing.
Coming soon on Google Play
Supermate talks to the server you run for your car's data. Your own notes — drivers, journeys, settings — sync between your devices through your private iCloud, never through a server of ours. No Supermate account, no third-party servers, no analytics.
It never talks to your car — only to the server you run. No extra wake-ups, no vampire drain, no second set of car credentials.
Your car's data comes straight from the server you run, and never passes through us. Your own notes sync between your devices only through your private iCloud.
Nothing to create, no password of ours. Point it at your address and go.
A single €14.99 purchase unlocks the full history, the Analysis, Journeys, Drivers and the Recap archive — for good. No subscription.
Three ways to look at your data — what each one actually gives you.
| Supermate | Grafana dashboards | Other apps | |
|---|---|---|---|
| Native iPhone app | ✓ | – | ✓ |
| Apple Watch & widgets | ✓ | – | ± |
| Cost of each drive, from your real charge prices | ✓ | – | – |
| Tariffs by rate period and place | ✓ | ± | – |
| Petrol comparison with official prices, automatic | ✓ | – | – |
| “Versus your usual on this route” | ✓ | – | – |
| Journeys chained automatically | ✓ | – | – |
| Per-driver split & fair comparison | ✓ | ± | ± |
| Shareable Recap | ✓ | – | – |
| Your own server, no account | ✓ | ✓ | ✓ |
| One-time purchase | ✓ | ✓ | mostly |
| Runs on Mac (iPad app) | ✓ | Browser only | some |
✓ full · ± partial · – not offered
Checked September 2026 against the apps listed on the App Store; tell us if something changed.
One purchase, everywhere it makes sense — glanceable on the wrist, live on the Lock Screen, at home on iPad.
Charge and range at a glance, right on your wrist.
Battery and status on your Home and Lock Screen.
Watch a charge climb in real time on the Lock Screen.
One app, laid out for every size of screen.
Metric or imperial, in your own language.
Try the whole app with a sample car — no server needed.
No. Supermate is an independent client built by one developer. It only reads from your TeslaMate database through the TeslaMateApi — it never changes your TeslaMate install.
No, and you shouldn't. Reach it over your home network, Tailscale, a Cloudflare Tunnel, or any VPN — Supermate just needs your iPhone to see the address.
Free: live status, this month's drives, charges and cost, battery health, and Live Activities. Pro (€14.99, one-time): full history, the Analysis — cost vs. petrol, month by month and year by year, battery degradation, your records — plus Journeys, Drivers and the Recap archive. One payment, unlocked for good, no subscription.
Your car's data stays on your own server. Your own notes — drivers, journeys, settings — sync between your devices through your private iCloud only. No Supermate account, no third-party servers, no analytics.
In development.
Today it connects to a self-hosted TeslaMate server that also runs TeslaMateApi, and it works with Tesla Model 3, Y, S and X — several cars too. No server? Supermate Cloud (coming soon) will connect straight to your Tesla account, with nothing to install: join the waitlist. Requires iOS 18 or watchOS 11 or later.
Supermate without a server of your own: connect with Tesla and your drives and charges are recorded for you, on servers in the European Union, with export any time. It's coming soon — join the waitlist and we'll tell you the day it opens. Planned price: €4.99 a month.
Free to download, with an optional one-time Pro unlock at €14.99. Twelve languages, metric or imperial, on every device you own.