# Testars Tool vs Opt Widon Power

Testars Tool and Opt Widon Power are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Testars Tool | Opt Widon Power |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free | — |
| Size | 115 MB | 60 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Shenzhen Niubaite Information Technology Company Limited](https://appshunter.io/developer/1625817561) | [Hunan Weidian Technology Co., Ltd.](https://appshunter.io/developer/1504200881) |

## 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


### Opt Widon Power

[App page](https://appshunter.io/ios/app/opt-widon-power/id6702011270)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Testars Tool free?

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

### Is Opt Widon Power free?

Opt Widon Power is free to download, with no in-app purchases.

### Do Testars Tool or Opt Widon Power have ads?

Neither Testars Tool nor Opt Widon Power shows ads.

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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.*