Testars Tool vs TeslSizzo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Testars Tool
Enhance your Tesla experience by adding customizable physical buttons to control original vehicle functions. Enjoy a 3D dashboard with real-time CAN data and access a vast library of quick commands. Supports multiple vehicle models and offers OTA hardware upgrades.
- Add physical buttons for Tesla functions
- Customizable original vehicle controls
- Model S/X style 3D dashboard
- Real-time CAN data, no delay
- Support for multiple vehicle models
- Extensive quick command library
- OTA hardware upgrades via Bluetooth
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【Feature Introduction】 1.Add physical buttons to Tesla, with extensive customization of original vehicle functions. 2.Pay tribute to the Model S/X style 3D dashboard, with original CAN data and no delay. 3.Support for multiple vehicle model replacements. 4.Massive and extremely useful quick commands, richer than the original factory app. 5.Support for app OTA hardware upgrades to the commander via Bluetooth, enabling one-click updates for the latest features. 【Contact Information】 Email: 191389703@qq.com WeChat: Harry_39
TeslSizzo
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Your Tesla, just a tap away on your wrist. You leave a meeting, and your Tesla is already cool. You arrive at the parking lot, and a compass guides you straight to it. Lock the doors right from your watch—no need to dig for your phone or open anything else. TeslSizzo turns your watch into your Tesla key. CONTROL EVERYTHING, INSTANTLY • Lock and unlock your Tesla from anywhere • Start the climate control before you get in and arrive at a ready-to-go car • Trunk, frunk, horn, lights, and windows • Sentry Mode, remote start, Pet Mode, and Camp Mode • Battery, range, and charging status at a glance DESIGNED FOR YOUR WATCH (not just an accessory) • Native app for Apple Watch and Wear OS • Wear OS version responds even if the phone app is closed • Your 4 favorite commands, always within reach • Where did you park? The compass guides you there YOUR ACCOUNT, SECURE • Log in via the official Tesla site: your password never passes through our servers • Every command travels via the official Tesla Fleet API • Protect the app with a PIN, fingerprint, or Face ID • Revoke access anytime via your Tesla account TESSA, YOUR ASSISTANT Ask about your energy consumption, activity, or how to configure settings. She answers in your language. NO SURPRISES Check your command count and estimated costs. We’ll notify you before you hit your limit. TRY IT FREE FOR 7 DAYS Connect your vehicle and use it for a full week. Then, choose the plan that suits you best... or bring your own Tesla credentials (BYOC). IN YOUR LANGUAGE Spanish, English, German, French, Italian, Portuguese, Japanese, Korean, Russian, and Chinese. Download it and wear your Tesla on your wrist. IMPORTANT NOTICE TeslSizzo is an independent application. Not made, endorsed, sponsored by, or affiliated with Tesla, Inc. Tesla, Model S/3/X/Y, Cybertruck, Roadster, and the Tesla logo are registered trademarks of Tesla, Inc. We connect solely via the official API (Tesla Fleet API), with your authorization. Requires a compatible Tesla vehicle and a Tesla account. Terms of Use (EULA): https://tesl-sizzo.com/terms Privacy Policy: https://tesl-sizzo.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Testars Tool at none against TeslSizzo's 8. Testars Tool also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). On price, update cadence and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. TeslSizzo sells 8 in-app purchases, starting at $4.99 per month. Testars Tool asks for nothing beyond the download.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 30, 2026 and October 4, 2026 respectively.
| Parameter | Testars Tool | TeslSizzo |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Weekly | Weekly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 115 MB | 60 MB |
| Age rating | 17+ | 4+ |
| Developer | Shenzhen Niubaite Information Technology Company Limited | LUSENROUE SIZZO |
In-app purchases
Testars Tool
No in-app purchases
TeslSizzo
- Membership Watt Monthly7 Days trial$4.991 Month
- Membership Watt Plus Monthly7 Days trial$7.991 Month
- Membership Kilowatt Monthly7 Days trial$9.991 Month
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- Membership Kilowatt Plus Monthly7 Days trial$12.991 Month
- Membership Watt Yearly7 Days trial$49.991 Year
- Membership Watt Plus Yearly7 Days trial$79.991 Year
- Membership Kilowatt Year7 Days trial$99.991 Year
- Membership Kilowatt Plus Yearly7 Days trial$129.991 Year









