# SkillTracker One vs OK Calendar

The clearest difference is in-app purchases: OK Calendar at none against SkillTracker One's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SkillTracker One sells 5 in-app purchases, starting at $6.99 per month. OK Calendar asks for nothing beyond the download.

SkillTracker One ships an update every 3 weeks, OK Calendar every 11 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | SkillTracker One | OK Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (13 ratings)](https://appshunter.io/ios/app/skilltracker-one/id1661588250/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 11 days** |
| Monetization | Freemium | — |
| Size | 14 MB | 52 MB |
| Requires iOS | **15.4** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Steven Sullivan](https://appshunter.io/developer/1661588252) | [Nikolaos Pinatsis](https://appshunter.io/developer/1832444446) |

## What reviewers say

### SkillTracker One

[App page](https://appshunter.io/ios/app/skilltracker-one/id1661588250)

Log your progress in hobbies and skills to gain insights and unlock achievements. This app offers a gamified experience to help you improve and reach mastery. Back up your data seamlessly with iCloud.

**Highlights:** Track any hobby or skill, Automated insights and charts, Earn achievements and level up, iCloud backups for seamless syncing, Gamified progress tracking, Personal goal setting

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $6.99 | per month |
| Annual Access – Save 53% | $39.99 | per year |
| Monthly Access | $6.99 | one-time |
| Annual Access – Save 53% | $39.99 | one-time |
| Lifetime Unlock | $249.99 | one-time |


### OK Calendar

[App page](https://appshunter.io/ios/app/ok-calendar/id6785077515)

**In-app purchases:** none


## Frequently asked questions

### Is SkillTracker One free?

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

### Is OK Calendar free?

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

### Do SkillTracker One or OK Calendar have ads?

Neither SkillTracker One nor OK Calendar shows ads.

### Which is updated more often, SkillTracker One or OK Calendar?

SkillTracker One ships an update every 3 weeks, and OK Calendar every 11 days. Most recently, SkillTracker One was updated on October 14, 2026 and OK Calendar on October 1, 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.*