# Go vs Cor4

The clearest difference is ads: Go at none against Cor4's shown. Go also leads on iOS requirement (8.0 vs 14.0). On price, update cadence, 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.

Go ships an update every 5 weeks, Cor4 monthly. The most recent releases landed on October 4, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Go | Cor4 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/cor4/id1499517553/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | — | Ad-supported |
| Size | 32 MB | 123 MB |
| Requires iOS | **8.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HATTRICK IT S.A.S](https://appshunter.io/developer/962731126) | [Cor4 LLC](https://appshunter.io/developer/1499517552) |

## What reviewers say

### Go

[App page](https://appshunter.io/ios/app/go-run/id1094733785)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cor4

[App page](https://appshunter.io/ios/app/cor4/id1499517553)

Easily plan and schedule your fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location details. Optimize your time and enjoy the convenience of managing your fitness activities on the go.

**Highlights:** View class schedules, Sign up for classes, Access studio location, Schedule management, Mobile convenience

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Go free?

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

### Is Cor4 free?

Cor4 is free to download, with no in-app purchases.

### Do Go or Cor4 have ads?

Cor4 shows ads; Go does not.

### Which is updated more often, Go or Cor4?

Go ships an update every 5 weeks, and Cor4 monthly. Most recently, Go was updated on October 4, 2026 and Cor4 on October 14, 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.*