# GymNotes vs O

The clearest difference is in-app purchases: O at none against GymNotes's 3. O also leads on iOS requirement (13.0 vs 15.6). GymNotes's advantage is update cadence (every 3 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. GymNotes sells 3 in-app purchases, starting at $3.99 per month. O asks for nothing beyond the download.

GymNotes ships an update every 3 weeks, O every 4 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | GymNotes | O |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/gymnotes-gym-exercise-notes/id6447488441/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | — |
| Size | 53 MB | 68 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Mykyta Subotin](https://appshunter.io/developer/1692788648) | [Christian Range](https://appshunter.io/developer/1754832824) |

## What reviewers say

### GymNotes

[App page](https://appshunter.io/ios/app/gymnotes-gym-exercise-notes/id6447488441)

Log and track your gym workouts with this comprehensive planner and exercise log. Visualize progress with detailed graphs and build custom routines. Ideal for strength training and fitness enthusiasts.

**Highlights:** Workout planner, Workout tracker, Exercise log, Custom routine builder, Progress graphs, Rest timer, Superset support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $22.99 | per year |
| GymNotes: Log & Track Workouts | $49.99 | one-time |


### O

[App page](https://appshunter.io/ios/app/o-n-e-d-a-y/id6505036554)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GymNotes free?

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

### Is O free?

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

### Do GymNotes or O have ads?

Neither GymNotes nor O shows ads.

### Which is updated more often, GymNotes or O?

GymNotes ships an update every 3 weeks, and O every 4 months. Most recently, GymNotes was updated on October 7, 2026 and O on September 29, 2026.

---

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