# Rai Persistent Terminal vs Fireguard

The clearest difference is update cadence: Rai Persistent Terminal at every 3 days against Fireguard's fortnightly. Rai Persistent Terminal also leads on device support (4 vs 2) and iOS requirement (13.0 vs 15.6). 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.

Rai Persistent Terminal ships an update every 3 days, Fireguard fortnightly. The most recent releases landed on October 6, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Rai Persistent Terminal | Fireguard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fireguard-meter/id6762114628/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Free |
| Size | 23 MB | 34 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [瑞艾科技](https://appshunter.io/developer/1325500279) | [Hangzhou Dashi Wisdom Technology Co., Ltd.](https://appshunter.io/developer/1822219570) |

## What reviewers say

### Rai Persistent Terminal

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

**In-app purchases:** none


### Fireguard

[App page](https://appshunter.io/ios/app/fireguard-meter/id6762114628)

This tool transforms your iPhone into a professional circuit analyzer for electricians and maintenance professionals. It offers circuit health diagnostics, fault logging with photo documentation, and precision data analysis with minute-level granularity for efficient troubleshooting and reporting.

**Highlights:** Circuit health diagnostics, Historical power curve comparison, Field fault logging with photos, Searchable fault archive, Precision data analysis, Minute-level granularity

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

**In-app purchases:** none


## Frequently asked questions

### Is Rai Persistent Terminal free?

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

### Is Fireguard free?

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

### Do Rai Persistent Terminal or Fireguard have ads?

Neither Rai Persistent Terminal nor Fireguard shows ads.

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

Rai Persistent Terminal ships an update every 3 days, and Fireguard fortnightly. Most recently, Rai Persistent Terminal was updated on October 6, 2026 and Fireguard on October 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.*