Tessie vs TezLab
Tessie vs TezLab compared: price, free tier, battery health, logging, automations, and voice. Which Tesla app to pick, and how to add AI control to either.
Tessie and TezLab are two of the most popular third-party Tesla apps, and they overlap more than most comparisons admit: both log your drives and charges, both control the car remotely, and both run on Tesla's official Fleet API. The real differences are price, polish, and what each one is built around. Tessie is a premium, all-in-one app with deep battery analytics and automations. TezLab is an efficiency and community app with a genuinely useful free tier.
mytesla.io is an independent service and is not affiliated with, endorsed by, or sponsored by Tesla, Inc., Tessie, or TezLab. This comparison summarizes publicly available information as of October 2026. Prices and features change often - check each app before you subscribe.
The short version
- Pick Tessie if you want the most polished app, detailed battery-health tracking, Siri/Alexa/Google voice, and automations, and you're happy to pay for it.
- Pick TezLab if you want trip and efficiency stats for free (or cheaply), like the social side (leaderboards and friends), or also own a Rivian.
- Consider your AI assistant as the app if you already use ChatGPT or Claude: connected with mytesla.io, it can do much of what both apps do (status, control, efficiency and battery tracking, alerts), shaped around you instead of a fixed set of screens. More below.
Side by side
| Tessie | TezLab | |
|---|---|---|
| Core focus | Premium control + analytics | Efficiency, trips, community |
| Free tier | No (paid plans, free trial) | Yes, with a paid Pro upgrade |
| Paid price (US) | Basic ~$6.99/mo, Pro ~$12.99/mo | Pro ~$6.99/mo or ~$59.99/yr (App Store) |
| Lifetime option | Yes (Basic and Pro) | No |
| Drive & charge logging | Yes, very detailed | Yes |
| Battery health tracking | Yes; Pro adds temperature, current, voltage | Basic |
| Remote control | Full | Yes |
| Automations | Yes (Pro) | Not a focus |
| Voice assistants | Siri, Alexa, Google | Not a focus |
| Social / leaderboards | No | Yes |
| Other EVs | Tesla only | Tesla and Rivian |
| Platforms | iOS, Android, web, watch | iOS, Android |
| API / Home Assistant | Yes (Tessie API, HA integration) | Not a focus |
Prices are the US list prices reported at time of writing. Tessie's lifetime plans were listed around $199.99 (Basic) and $299.99 (Pro).
Where Tessie wins
- Polish. Tessie is widely considered the most refined third-party Tesla app, on phone, web, and watch.
- Battery analytics. Detailed charge logs and battery-health trends, with Pro adding battery temperature, current, and voltage monitoring.
- Automations and alerts. On Pro: automations, Sentry alerts, weather and maintenance alerts, live tracking, and software-update tracking. See Tessie vs Tessie Pro for exactly what Pro adds.
- Integrations. Voice shortcuts and an API that Home Assistant and other tools can use.
Where TezLab wins
- Price. The free tier covers trip logging and efficiency stats that Tessie charges for, and Pro is cheaper than Tessie Basic.
- Efficiency focus. TezLab is built around how efficiently you drive and charge, which makes it good for spotting changes in consumption.
- Community. Leaderboards, friends, and shared trips are a TezLab specialty.
- Multi-brand. If your household has a Rivian too, one app covers both.
A third option: make your AI assistant your Tesla app
Tessie and TezLab are both fixed products: the screens, charts, and automations are the ones their developers built. If you already use ChatGPT or Claude, there's another way to get what you're shopping for. Connect your car to your assistant with mytesla.io, and the assistant becomes the app:
| What you'd use Tessie or TezLab for | How your AI does it with mytesla.io |
|---|---|
| Check the car's status | "How's my car?" - battery, range, charging, doors, windows, tires, climate in one answer |
| Remote control | "Lock it, close the windows, and start cooling to 70." |
| Efficiency and battery tracking | The Vehicle History skill has your AI log readings on your side and build a dashboard of range, distance, charging, and efficiency |
| Weekly stats | The Weekly Tesla Digest runs on your assistant's scheduled tasks |
| Automations | Describe the outcome: "Every weeknight, charge to 80% on off-peak rates and make sure it's locked." |
| Voice | Talk to ChatGPT or Claude voice mode, in full sentences, not fixed phrases |
Why owners pick this route:
- It's tailored to you. Track the numbers you care about, in the format you want, and skip the rest.
- It improves on its own. Every new model and assistant feature (memory, scheduled tasks, charts, voice) makes your "Tesla app" better without switching apps.
- It sees the rest of your day. Your assistant already knows your calendar and can check the weather, so "be ready for my 8 AM" just works.
- It's private by design. mytesla.io keeps no history of your car; any log lives on your side.
- It's cheaper. 100 free trial credits, then $4.99/month, compared with about $6.99 for TezLab Pro or Tessie Basic.
Honest trade-off: Tessie and TezLab log every drive automatically from day one, with no setup. Your AI's history starts when you set up the Vehicle History skill and is built from periodic readings rather than every trip. If detailed trip logs matter most, keep one of them and add mytesla.io alongside it; all three use Tesla's official Fleet API and run side by side.
Try it: create an account, connect your Tesla, and add mytesla.io to ChatGPT or Claude. Then ask "How's my car?"
FAQ
Is TezLab really free? Yes, TezLab has a free tier with trip and efficiency tracking. A paid Pro subscription (about $6.99/month or $59.99/year on the US App Store at time of writing) unlocks more.
Is Tessie worth it over TezLab? If you want the most polished app, detailed battery health, voice control, and automations, yes. If you mostly want trip and efficiency stats, TezLab's free tier may be all you need.
Can I use Tessie and TezLab at the same time? Yes. Both connect through Tesla's Fleet API with their own authorization, so they don't conflict. Each one does add its own requests to your car, so running many logging apps at once can keep the car awake more often.
Which is better for battery health, Tessie or TezLab? Tessie, especially Pro, which adds battery temperature, current, and voltage monitoring. For raw cell-level data, see the best diagnostic app for a Tesla.
Is there an AI alternative to Tessie and TezLab? Yes. Connect your Tesla to ChatGPT, Claude, or another AI assistant with mytesla.io and the assistant can check the car, control it, track battery and efficiency on your side, and send you a weekly digest, all in plain English. It starts with 100 free credits, then $4.99/month.
What about Teslemetry, TeslaFi and TeslaMate? Teslemetry is a developer and Home Assistant API service rather than a consumer app (Teslemetry vs Tessie). TeslaFi and TeslaMate are data loggers (mytesla.io vs TeslaMate). For the full landscape, see best third-party Tesla apps.