# Testars Tool vs TeslSizzo

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.

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.

## The numbers

| Metric | Testars Tool | TeslSizzo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/testars-tool/id6504078266/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 115 MB | 60 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Niubaite Information Technology Company Limited](https://appshunter.io/developer/1625817561) | [LUSENROUE SIZZO](https://appshunter.io/developer/1709146885) |

## What reviewers say

### Testars Tool

[App page](https://appshunter.io/ios/app/testars-tool/id6504078266)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### TeslSizzo

[App page](https://appshunter.io/ios/app/teslsizzo/id6791012017)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Membership Watt Monthly | $4.99 | per month |
| Membership Watt Plus Monthly | $7.99 | per month |
| Membership Kilowatt Monthly | $9.99 | per month |
| Membership Kilowatt Plus Monthly | $12.99 | per month |
| Membership Watt Yearly | $49.99 | per year |
| Membership Watt Plus Yearly | $79.99 | per year |
| Membership Kilowatt Year | $99.99 | per year |
| Membership Kilowatt Plus Yearly | $129.99 | per year |


## Frequently asked questions

### Is Testars Tool free?

Testars Tool is free to download, with no in-app purchases.

### Is TeslSizzo free?

TeslSizzo is free to download, with in-app purchases available.

### Do Testars Tool or TeslSizzo have ads?

TeslSizzo shows ads; Testars Tool does not.

### Which is updated more often, Testars Tool or TeslSizzo?

Testars Tool ships an update weekly, and TeslSizzo weekly. Most recently, Testars Tool was updated on September 30, 2026 and TeslSizzo on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*