# Simple Cidr vs Halo OS

The clearest difference is iOS requirement: Halo OS at 15.2 against Simple Cidr's 17.6. 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.

Simple Cidr ships an update every 30 months, Halo OS every 26 months. The most recent releases landed on September 8, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | Simple Cidr | Halo OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (8 ratings)](https://appshunter.io/ios/app/halo-os/id1578192575/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 26 months** |
| Monetization | — | Free |
| Size | 0 MB | 5 MB |
| Requires iOS | 17.6 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Luke Pilkington](https://appshunter.io/developer/1515186312) | [Tiago Mendes](https://appshunter.io/developer/1235886918) |

## What reviewers say

### Simple Cidr

[App page](https://appshunter.io/ios/app/simple-cidr/id1515186313)

**Features:** macOS Compatibility

**In-app purchases:** none


### Halo OS

[App page](https://appshunter.io/ios/app/halo-os/id1578192575)

Transform your iPhone or iPad into a functional desktop computer. Connect external displays, keyboards, and mice to navigate a web browser and file explorer with ease.

**Highlights:** External monitor support, Bluetooth keyboard and mouse compatibility, Web browser, File explorer, TXT file reader, Window management

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple Cidr free?

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

### Is Halo OS free?

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

### Do Simple Cidr or Halo OS have ads?

Neither Simple Cidr nor Halo OS shows ads.

### Which is updated more often, Simple Cidr or Halo OS?

Simple Cidr ships an update every 30 months, and Halo OS every 26 months. Most recently, Simple Cidr was updated on September 8, 2026 and Halo OS on August 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*