# JT606 Calibration Tool vs Controller

The clearest difference is iOS requirement: Controller at 9.0 against JT606 Calibration Tool's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | JT606 Calibration Tool | Controller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 13 MB | 14 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [SHENZHEN JOINT TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1070842011) | [宝强 张](https://appshunter.io/developer/1680081398) |

## What reviewers say

### JT606 Calibration Tool

[App page](https://appshunter.io/ios/app/jt606-calibration-tool/id6446422488)

**Features:** macOS Compatibility

**In-app purchases:** none


### Controller

[App page](https://appshunter.io/ios/app/controller-eh/id6447059991)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is JT606 Calibration Tool free?

JT606 Calibration Tool is free to download, with no in-app purchases.

### Is Controller free?

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

### Do JT606 Calibration Tool or Controller have ads?

Neither JT606 Calibration Tool nor Controller shows ads.

### Which is updated more often, JT606 Calibration Tool or Controller?

JT606 Calibration Tool ships an update every 3 months, and Controller every 3 months. Most recently, JT606 Calibration Tool was updated on September 8, 2026 and Controller on September 20, 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.*