# PetRank vs Colossus Social Reader

The clearest difference is update cadence: PetRank at every 2 days against Colossus Social Reader's every 9 days. PetRank also leads on iOS requirement (15.0 vs 26.0). 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.

PetRank ships an update every 2 days, Colossus Social Reader every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | PetRank | Colossus Social Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 9 days |
| Size | 34 MB | 129 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 4+ |
| Developer | [Goktug Islamoglu](https://appshunter.io/developer/1831861986) | [Julio Cuesta](https://appshunter.io/developer/1891424480) |

## What reviewers say

### PetRank

[App page](https://appshunter.io/ios/app/petrank/id6749719639)

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

**In-app purchases:** none


### Colossus Social Reader

[App page](https://appshunter.io/ios/app/colossus-social-reader/id6763415646)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PetRank free?

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

### Is Colossus Social Reader free?

Colossus Social Reader is free to download, with no in-app purchases.

### Do PetRank or Colossus Social Reader have ads?

Neither PetRank nor Colossus Social Reader shows ads.

### Which is updated more often, PetRank or Colossus Social Reader?

PetRank ships an update every 2 days, and Colossus Social Reader every 9 days. Most recently, PetRank was updated on October 24, 2026 and Colossus Social Reader on October 24, 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.*