# NASM EDGE vs ClassBuzz

The clearest difference is rating: ClassBuzz at 4.1 against NASM EDGE's 2.9. ClassBuzz also leads on in-app purchases (none vs 6) and ads (none vs shown). NASM EDGE's advantage is device support (3 vs 1) and ratings volume (236 vs 63). On price, update cadence and iOS requirement there is nothing between them.

Both are free to download. NASM EDGE sells 6 in-app purchases, starting at $19.99 per month. ClassBuzz asks for nothing beyond the download.

ClassBuzz holds the better App Store score, 4.1 against 2.9. Both are backed by a comparable volume of ratings — 236 and 63 respectively. Written reviews point the same way: 9% of NASM EDGE's written reviews are positive against 36% of ClassBuzz's.

NASM EDGE ships an update every 3 weeks, ClassBuzz every 5 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | NASM EDGE | ClassBuzz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (236 ratings)](https://appshunter.io/ios/app/nasm-edge-personal-trainers/id1353245169/reviews) | **[4.1 (63 ratings)](https://appshunter.io/ios/app/classbuzz/id1443007251/reviews)** |
| Number of ratings | **236** | 63 |
| Positive reviews | 9.4% of reviews | **36.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Subscription | **Free** |
| Size | 235 MB | 53 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ATI](https://appshunter.io/developer/369946807) | [Zumba® Fitness](https://appshunter.io/developer/628664480) |

## What reviewers say

### NASM EDGE

[App page](https://appshunter.io/ios/app/nasm-edge-personal-trainers/id1353245169)

This app provides tools for personal trainers to manage clients, create custom workouts, and track progress. It also offers resources for fitness enthusiasts, including exercise videos and daily routines.

**Highlights:** Client assessment wizard, Custom workout creation, Calorie and macronutrient calculator, Client dashboard with progress tracking, Exercise video library, NASM CPT exam preparation tools

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trainer Plus (1 Month) | $19.99 | per month |
| Trainer Pro (1 Month) | $34.99 | per month |
| Trainer Quarterly Subscription | $55.99 | per 3 months |
| Trainer Plus (1 Year) | $199.99 | per year |
| Trainer Pro (1 Year) | $349.99 | per year |
| CPT Exam Prep Package | $16.99 | one-time |

**What reviewers like**

- 🚀 Useful assessment features
- 📈 Nutrition calculators
- 💻 Ability to add own videos/exercises
- 📝 Easy to add clients

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- ⏱️ Slow exercise search and loading
- 🤯 Frustrating to use, glitchy
- 🔍 Limited exercise library
- 💾 Issues saving/updating workouts

**Reported bugs**

- Workouts disappearing after saving
- Exercises not loading properly
- Inability to edit/delete client information
- Frequent login issues and app crashes
- Unreliable syncing between app and web version

**Requested features**

- Add ability to create supersets and circuits
- Allow clients to record weights/reps used
- Integrate with fitness tracking apps
- Add more exercise options, including basic movements
- Improve workout editing and saving functionality


### ClassBuzz

[App page](https://appshunter.io/ios/app/classbuzz/id1443007251)

Create and personalize social media content to promote yourself and your Zumba classes. Access exclusive Zumba-branded assets like images, videos, and animations to design engaging posts.

**Highlights:** Personalize social media content, Exclusive Zumba-branded assets, Template-based post creation, Customizable posts with text and stickers, Direct social media sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NASM EDGE free?

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

### Is ClassBuzz free?

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

### Which has better reviews, NASM EDGE or ClassBuzz?

ClassBuzz is rated higher. NASM EDGE averages 2.9 out of 5 from 236 ratings, while ClassBuzz averages 4.1 from 63 ratings.

### Do NASM EDGE or ClassBuzz have ads?

NASM EDGE shows ads; ClassBuzz does not.

### Which is updated more often, NASM EDGE or ClassBuzz?

NASM EDGE ships an update every 3 weeks, and ClassBuzz every 5 weeks. Most recently, NASM EDGE was updated on October 13, 2026 and ClassBuzz on October 16, 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.*