# Atomic CrossFit vs Army Body Builder

The clearest difference is in-app purchases: Atomic CrossFit at none against Army Body Builder's 1. Atomic CrossFit also leads on device support (3 vs 1) and iOS requirement (15 vs 26.0). Army Body Builder's advantage is update cadence (every 2 days vs every 3 weeks). On price and ads there is nothing between them.

Both are free to download. Army Body Builder sells 1 in-app purchase, starting at $4.99 per month. Atomic CrossFit asks for nothing beyond the download.

Atomic CrossFit ships an update every 3 weeks, Army Body Builder every 2 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Atomic CrossFit | Army Body Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/atomic-crossfit/id6502669164/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 81 MB | 5 MB |
| Requires iOS | **15** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Atomic CrossFit](https://appshunter.io/developer/1749126256) | [Jose Aguilar](https://appshunter.io/developer/1820136236) |

## What reviewers say

### Atomic CrossFit

[App page](https://appshunter.io/ios/app/atomic-crossfit/id6502669164)

This app allows members to easily reserve spots in fitness classes and sign up for gym events. It also provides convenient account management features, such as updating personal information and payment details.

**Highlights:** Class reservation, Event sign-up, Account management, Profile updates, Payment information management

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

**In-app purchases:** none


### Army Body Builder

[App page](https://appshunter.io/ios/app/army-body-builder/id6780132102)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Army Body Builder Pro | $4.99 | per month |


## Frequently asked questions

### Is Atomic CrossFit free?

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

### Is Army Body Builder free?

Army Body Builder is free to download, with in-app purchases available.

### Do Atomic CrossFit or Army Body Builder have ads?

Neither Atomic CrossFit nor Army Body Builder shows ads.

### Which is updated more often, Atomic CrossFit or Army Body Builder?

Atomic CrossFit ships an update every 3 weeks, and Army Body Builder every 2 days. Most recently, Atomic CrossFit was updated on October 20, 2026 and Army Body Builder on October 24, 2026.

---

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