# F45 Training vs Underground Athlete Coaching

The clearest difference is rating: Underground Athlete Coaching at 4.9 against F45 Training's 4.5. Underground Athlete Coaching also leads on device support (4 vs 2). F45 Training's advantage is update cadence (every 10 days vs every 2 months) and ratings volume (205 vs 24). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Underground Athlete Coaching holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: F45 Training has 205 ratings behind it against 24, so its average is the more settled of the two.

F45 Training ships an update every 10 days, Underground Athlete Coaching every 2 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | F45 Training | Underground Athlete Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (205 ratings)](https://appshunter.io/ios/app/f45-training/id1115028194/reviews) | **[4.9 (24 ratings)](https://appshunter.io/ios/app/underground-athlete-coaching/id1622647090/reviews)** |
| Number of ratings | **205** | 24 |
| Positive reviews | 28.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 87 MB | 171 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [F45 Training](https://appshunter.io/developer/895513031) | [Underground Athlete](https://appshunter.io/developer/1565729903) |

## What reviewers say

### F45 Training

[App page](https://appshunter.io/ios/app/f45-training/id1115028194)

This app helps you manage your fitness journey with class booking, challenge participation, and personalized meal plans. Track your progress with heart rate monitoring and fitness assessments, and even order ready-made meals for convenience.

**Highlights:** Book classes and join waitlists, Participate in 45-Day Challenges, Track heart rate and session results, Discover and order dietitian-curated meal plans, Log and share fitness assessment results, Watch workouts from your phone

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy to use
- 👍 Great workout and nutrition content
- 🚀 Convenient class booking
- 👍 Helpful for tracking progress
- 🚀 Seamless fitness experience

**What reviewers complain about**

- 🐛 Frequent crashes and glitches
- 🐛 Buggy app updates
- 🐛 Unreliable sync and login issues
- 🐛 Recipes have missing/incorrect ingredients
- 🐛 Constant resets and loss of data

**Reported bugs**

- App crashes when accessing recipes
- Unable to log workouts and track progress
- Shopping list and meal plan inconsistencies
- Incorrect portion sizes and nutritional info
- Inability to switch between male/female profiles

**Requested features**

- Add ability to save/favorite recipes
- Improve recipe search and filtering
- Integrate with Apple Health/Strava
- Allow customization of meal plans and shopping lists
- Provide more language and dietary options


### Underground Athlete Coaching

[App page](https://appshunter.io/ios/app/underground-athlete-coaching/id1622647090)

Track your workouts, meals, and progress towards fitness goals with personalized guidance from your coach. Schedule sessions, manage nutrition, and monitor body measurements. Stay motivated with real-time messaging and reminders.

**Highlights:** Workout and meal tracking, Progress monitoring, Nutrition management, Real-time coach messaging, Body measurement tracking, Push notification reminders, Wearable device integration

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is F45 Training free?

F45 Training is free to download, with no in-app purchases.

### Is Underground Athlete Coaching free?

Underground Athlete Coaching is free to download, with no in-app purchases.

### Which has better reviews, F45 Training or Underground Athlete Coaching?

Underground Athlete Coaching is rated higher. F45 Training averages 4.5 out of 5 from 205 ratings, while Underground Athlete Coaching averages 4.9 from 24 ratings.

### Do F45 Training or Underground Athlete Coaching have ads?

Neither F45 Training nor Underground Athlete Coaching shows ads.

### Which is updated more often, F45 Training or Underground Athlete Coaching?

F45 Training ships an update every 10 days, and Underground Athlete Coaching every 2 months. Most recently, F45 Training was updated on October 26, 2026 and Underground Athlete Coaching on October 25, 2026.

---

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