# O2X vs VIRTUS.

The clearest difference is rating: VIRTUS. at 5.0 against O2X's 4.2. VIRTUS. also leads on in-app purchases (none vs 2). O2X's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (68 vs 3). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. O2X sells 2 in-app purchases, starting at $9.99 per month. VIRTUS. asks for nothing beyond the download.

VIRTUS. holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: O2X has 68 ratings behind it against 3, so its average is the more settled of the two.

O2X ships an update every 3 weeks, VIRTUS. every 3 months. The most recent releases landed on October 14, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | O2X | VIRTUS. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (68 ratings)](https://appshunter.io/ios/app/o2x/id1491463207/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/virtus/id6761403339/reviews)** |
| Number of ratings | **68** | 3 |
| Positive reviews | 65.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 79 MB | 73 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [O2X Human Performance LLC](https://appshunter.io/developer/1491463206) | [THOMAS FRANCIS LUSSIER](https://appshunter.io/developer/1889406661) |

## What reviewers say

### O2X

[App page](https://appshunter.io/ios/app/o2x/id1491463207)

This app delivers personalized physical and mental training programs designed to meet your specific needs. Access workouts and guidance from a team of over 150 elite athletes, special operations veterans, and academics.

**Highlights:** Customized training programs, Physical training, Mental training, World-class athlete trainers, Special operations veteran trainers, Academic expertise

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $99.99 | per year |


### VIRTUS.

[App page](https://appshunter.io/ios/app/virtus/id6761403339)

This app provides detailed data on your workouts, showing your progress with real-time updates on estimated 1RM, training intensity, and muscle engagement. It helps you train smarter by visualizing your strength and volume.

**Highlights:** Real-time estimated 1RM updates, Track training intensity, Strength Triangle visualization, Volume Circle for muscle engagement, Detailed workout data breakdown

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

**In-app purchases:** none


## Frequently asked questions

### Is O2X free?

O2X is free to download, with in-app purchases available.

### Is VIRTUS. free?

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

### Which has better reviews, O2X or VIRTUS.?

VIRTUS. is rated higher. O2X averages 4.2 out of 5 from 68 ratings, while VIRTUS. averages 5.0 from 3 ratings.

### Do O2X or VIRTUS. have ads?

Neither O2X nor VIRTUS. shows ads.

### Which is updated more often, O2X or VIRTUS.?

O2X ships an update every 3 weeks, and VIRTUS. every 3 months. Most recently, O2X was updated on October 14, 2026 and VIRTUS. on October 8, 2026.

---

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