# THE I/O vs CORPO

The clearest difference is update cadence: CORPO at every 2 months against THE I/O's every 4 months. THE I/O's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for THE I/O against 5.0 for CORPO. Both are backed by a comparable volume of ratings — 13 and 14 respectively.

THE I/O ships an update every 4 months, CORPO every 2 months. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | THE I/O | CORPO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (13 ratings)](https://appshunter.io/ios/app/the-io/id1576813737/reviews) | **[5.0 (14 ratings)](https://appshunter.io/ios/app/corpo/id6446640825/reviews)** |
| Number of ratings | 13 | **14** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 195 MB | 102 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The IO](https://appshunter.io/developer/1576813739) | [Perfect Gym Solutions Sp. z o.o.](https://appshunter.io/developer/1004382730) |

## What reviewers say

### THE I/O

[App page](https://appshunter.io/ios/app/the-io/id1576813737)

Book challenging and surprising group fitness classes. Manage your personal details and access contact information easily. Discover more features and expect the unexpected.

**Highlights:** Book group fitness classes, Manage personal details, Access contact information, Discover new features, Challenging workouts

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

**In-app purchases:** none


### CORPO

[App page](https://appshunter.io/ios/app/corpo/id6446640825)

Easily manage your fitness club experience from your mobile device. Book classes, access club information, and track your attendance history. Stay connected with your club and friends through convenient features.

**Highlights:** QR code club entry, Class booking, Club information access, Friend invitations, Attendance history, Membership details preview, Class reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is THE I/O free?

THE I/O is free to download, with no in-app purchases.

### Is CORPO free?

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

### Which has better reviews, THE I/O or CORPO?

CORPO is rated higher. THE I/O averages 4.9 out of 5 from 13 ratings, while CORPO averages 5.0 from 14 ratings.

### Do THE I/O or CORPO have ads?

Neither THE I/O nor CORPO shows ads.

### Which is updated more often, THE I/O or CORPO?

THE I/O ships an update every 4 months, and CORPO every 2 months. Most recently, THE I/O was updated on October 20, 2026 and CORPO on October 16, 2026.

---

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