# OSB vs carrier pidge

The clearest difference is in-app purchases: OSB at none against carrier pidge's 4. OSB also leads on iOS requirement (15.1 vs 26.0). carrier pidge's advantage is update cadence (every 6 days vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. carrier pidge sells 4 in-app purchases, starting at $2.99 per month. OSB asks for nothing beyond the download.

OSB ships an update every 6 weeks, carrier pidge every 6 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | OSB | carrier pidge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (1.3K ratings)](https://appshunter.io/ios/app/carrier-pidge/id6762161637/reviews)** |
| Number of ratings | — | **1.3K** |
| Positive reviews | — | 71.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 382 MB | 44 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Oudstudentenbond Vrije Universiteit Brussel](https://appshunter.io/developer/1830449108) | [Noah Iarrobino](https://appshunter.io/developer/1262164232) |

## What reviewers say

### OSB

[App page](https://appshunter.io/ios/app/osb-vub/id6749445200)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### carrier pidge

[App page](https://appshunter.io/ios/app/carrier-pidge/id6762161637)

Send messages using virtual carrier pigeons that fly based on real GPS distance. Experience the adventure of old-world correspondence with real-time tracking and unpredictable delivery times. Manage your flock and enjoy a unique, whimsical messaging experience.

**Highlights:** Real-time pigeon tracking, GPS-based delivery times, Whimsical pigeon fate system, Friend flock management, Parchment-themed design

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pigeon Keeper | $2.99 | per month |
| 1 Pigeon | $0.99 | one-time |
| 3 Pigeons | $2.99 | one-time |
| 10 Pigeons | $4.99 | one-time |


## Frequently asked questions

### Is OSB free?

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

### Is carrier pidge free?

carrier pidge is free to download, with in-app purchases available.

### Do OSB or carrier pidge have ads?

Neither OSB nor carrier pidge shows ads.

### Which is updated more often, OSB or carrier pidge?

OSB ships an update every 6 weeks, and carrier pidge every 6 days. Most recently, OSB was updated on October 28, 2026 and carrier pidge on October 31, 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.*