# Harness On vs Rai Persistent Terminal

The clearest difference is update cadence: Rai Persistent Terminal at every 3 days against Harness On's fortnightly. Rai Persistent Terminal also leads on device support (4 vs 2) and iOS requirement (13.0 vs 15.1). On price, 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.

Harness On ships an update fortnightly, Rai Persistent Terminal every 3 days. The most recent releases landed on November 5, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Harness On | Rai Persistent Terminal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 41 MB | 23 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Harness Inc.](https://appshunter.io/developer/1728785203) | [瑞艾科技](https://appshunter.io/developer/1325500279) |

## What reviewers say

### Harness On

[App page](https://appshunter.io/ios/app/harness-on-call/id6753579217)

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

**In-app purchases:** none


### Rai Persistent Terminal

[App page](https://appshunter.io/ios/app/rai-persistent-terminal/id6757976794)

**In-app purchases:** none


## Frequently asked questions

### Is Harness On free?

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

### Is Rai Persistent Terminal free?

Rai Persistent Terminal is free to download, with no in-app purchases.

### Do Harness On or Rai Persistent Terminal have ads?

Neither Harness On nor Rai Persistent Terminal shows ads.

### Which is updated more often, Harness On or Rai Persistent Terminal?

Harness On ships an update fortnightly, and Rai Persistent Terminal every 3 days. Most recently, Harness On was updated on November 5, 2026 and Rai Persistent Terminal on October 28, 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.*