# RoboCMD vs J20

The clearest difference is update cadence: J20 at every 3 days against RoboCMD's every 4 months. 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.

RoboCMD ships an update every 4 months, J20 every 3 days. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RoboCMD | J20 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/robocmd/id6450877951/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 82 MB | 59 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [苏州澜途科技有限公司](https://appshunter.io/developer/1695503916) | [南京辉煌智行科技有限公司](https://appshunter.io/developer/1738384876) |

## What reviewers say

### RoboCMD

[App page](https://appshunter.io/ios/app/robocmd/id6450877951)

This application serves as an intelligent management platform for robotic products. It allows users to remotely control robots, monitor their working status, and receive important work information and notifications. Device details and fault anomalies are also clearly displayed.

**Highlights:** Remote robot control, Real-time status monitoring, Device information display, Fault anomaly reporting, Work message notifications

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

**In-app purchases:** none


### J20

[App page](https://appshunter.io/ios/app/j20/id6795382293)

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

**In-app purchases:** none


## Frequently asked questions

### Is RoboCMD free?

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

### Is J20 free?

J20 is free to download, with no in-app purchases.

### Do RoboCMD or J20 have ads?

Neither RoboCMD nor J20 shows ads.

### Which is updated more often, RoboCMD or J20?

RoboCMD ships an update every 4 months, and J20 every 3 days. Most recently, RoboCMD was updated on September 24, 2026 and J20 on October 7, 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.*