# OS1 vs Pegasus Mobile

The clearest difference is update cadence: Pegasus Mobile at every 2 months against OS1's every 8 months. OS1's advantage is iOS requirement (13.0 vs 16.0). 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.

OS1 ships an update every 8 months, Pegasus Mobile every 2 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | OS1 | Pegasus Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/pegasus-mobile/id6739350999/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 62 MB | 144 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Pegasus Building Services Company, Inc](https://appshunter.io/developer/1565512037) | [Morf Corporation](https://appshunter.io/developer/1246929402) |

## What reviewers say

### OS1

[App page](https://appshunter.io/ios/app/os1/id6450308066)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pegasus Mobile

[App page](https://appshunter.io/ios/app/pegasus-mobile/id6739350999)

This platform enhances communication between construction field teams and the office. It automates tasks, provides real-time job site data, and offers offline capabilities for reporting. Designed for ease of use, it supports teams with minimal tech experience.

**Highlights:** Real-time job site data, Automated contract administration, Offline reporting capability, Branded field report templates, Photo & video attachments, Time, material, and equipment tracking, On-demand customer support

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

**In-app purchases:** none


## Frequently asked questions

### Is OS1 free?

OS1 is free to download, with no in-app purchases.

### Is Pegasus Mobile free?

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

### Do OS1 or Pegasus Mobile have ads?

Neither OS1 nor Pegasus Mobile shows ads.

### Which is updated more often, OS1 or Pegasus Mobile?

OS1 ships an update every 8 months, and Pegasus Mobile every 2 months. Most recently, OS1 was updated on October 27, 2026 and Pegasus Mobile on October 30, 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.*