# Cor4 vs InstaTrainMe

The clearest difference is ads: InstaTrainMe at none against Cor4's shown. InstaTrainMe also leads on iOS requirement (12.0 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.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on June 7, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Cor4 | InstaTrainMe |
| --- | --- | --- |
| 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 | Yes | **No** |
| Update frequency | Monthly | Monthly |
| Monetization | Ad-supported | — |
| Size | 123 MB | 252 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cor4 LLC](https://appshunter.io/developer/1499517552) | [InstaTrainMe Technologies, INC.](https://appshunter.io/developer/1743191389) |

## What reviewers say

### 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


### InstaTrainMe

[App page](https://appshunter.io/ios/app/instatrainme/id6499338812)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Cor4 free?

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

### Is InstaTrainMe free?

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

### Do Cor4 or InstaTrainMe have ads?

Cor4 shows ads; InstaTrainMe does not.

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

Cor4 ships an update monthly, and InstaTrainMe monthly. Most recently, Cor4 was updated on June 7, 2026 and InstaTrainMe on September 11, 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.*