# RJ Law vs Testars Tool

The clearest difference is update cadence: Testars Tool at weekly against RJ Law's every 2 months. Testars Tool also leads on iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

RJ Law ships an update every 2 months, Testars Tool weekly. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | RJ Law | Testars Tool |
| --- | --- | --- |
| 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 | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 21 MB | 115 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Legal Soft Inc](https://appshunter.io/developer/1448203299) | [Shenzhen Niubaite Information Technology Company Limited](https://appshunter.io/developer/1625817561) |

## What reviewers say

### RJ Law

[App page](https://appshunter.io/ios/app/rj-law/id6448481635)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is RJ Law free?

RJ Law is free to download, with no in-app purchases.

### Is Testars Tool free?

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

### Do RJ Law or Testars Tool have ads?

Neither RJ Law nor Testars Tool shows ads.

### Which is updated more often, RJ Law or Testars Tool?

RJ Law ships an update every 2 months, and Testars Tool weekly. Most recently, RJ Law was updated on October 14, 2026 and Testars Tool on September 30, 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.*