# RDNIMOS vs HCT Robot

The clearest difference is update cadence: RDNIMOS at every 10 days against HCT Robot's every 3 months. HCT Robot's advantage is iOS requirement (9.0 vs 12.4). 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.

RDNIMOS ships an update every 10 days, HCT Robot every 3 months. The most recent releases landed on September 11, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | RDNIMOS | HCT Robot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 months |
| Size | 10 MB | 97 MB |
| Requires iOS | 12.4 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Suzhou Radiant Photovoltaic Technology Co., Ltd](https://appshunter.io/developer/1630691682) | [深圳豪成智能科技有限公司](https://appshunter.io/developer/1701767992) |

## What reviewers say

### RDNIMOS

[App page](https://appshunter.io/ios/app/rdnimos/id6443981089)

**Features:** macOS Compatibility

**In-app purchases:** none


### HCT Robot

[App page](https://appshunter.io/ios/app/hct-robot/id6459409725)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RDNIMOS free?

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

### Is HCT Robot free?

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

### Do RDNIMOS or HCT Robot have ads?

Neither RDNIMOS nor HCT Robot shows ads.

### Which is updated more often, RDNIMOS or HCT Robot?

RDNIMOS ships an update every 10 days, and HCT Robot every 3 months. Most recently, RDNIMOS was updated on September 11, 2026 and HCT Robot on September 15, 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.*