# NRGym vs Classbooking.app

The clearest difference is in-app purchases: Classbooking.app at none against NRGym's 3. NRGym's advantage is iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. NRGym sells 3 in-app purchases, starting at $4.99 per month. Classbooking.app asks for nothing beyond the download.

NRGym ships an update every 6 weeks, Classbooking.app every 3 weeks. The most recent releases landed on June 4, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | NRGym | Classbooking.app |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Freemium | — |
| Size | 31 MB | 54 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Rousel Chowdhury](https://appshunter.io/developer/1721154981) | [LUKE ZACHARY AIKMAN](https://appshunter.io/developer/1887115177) |

## What reviewers say

### NRGym

[App page](https://appshunter.io/ios/app/nrgym/id1598366874)

This app offers interactive 3D gym mapping, personalized training plans, and nutrition tracking. It synchronizes with Apple HealthKit to monitor achievements and allows users to log workouts and progress photos. Community features are also integrated.

**Highlights:** Interactive 3D Gym Mapping, Customizable Training Plans, Nutrition Logging, Progress Photo Uploads, Apple HealthKit Synchronization, Community Features

**Features:** Apple Wallet

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NRGym | $4.99 | per month |
| NRGym | $50.99 | per year |
| NRGym App Subscription | $5.99 | one-time |


### Classbooking.app

[App page](https://appshunter.io/ios/app/classbookingapp/id6760979154)

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

**In-app purchases:** none


## Frequently asked questions

### Is NRGym free?

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

### Is Classbooking.app free?

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

### Do NRGym or Classbooking.app have ads?

Neither NRGym nor Classbooking.app shows ads.

### Which is updated more often, NRGym or Classbooking.app?

NRGym ships an update every 6 weeks, and Classbooking.app every 3 weeks. Most recently, NRGym was updated on June 4, 2026 and Classbooking.app on September 22, 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.*