# strefakursów.pl vs SkillUp

The clearest difference is in-app purchases: strefakursów.pl at none against SkillUp's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SkillUp sells 9 in-app purchases, starting at $0.99 per 7 days. strefakursów.pl asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 19, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | strefakursów.pl | SkillUp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skillup-knowledge-is-power/id1616007109/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 35 MB | 67 MB |
| Requires iOS | 15.1 | **14.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Hero Sp. z o.o. Sp. k.](https://appshunter.io/developer/1233139955) | [Skill-Up Sp. z o.o.](https://appshunter.io/developer/1715285301) |

## What reviewers say

### strefakursów.pl

[App page](https://appshunter.io/ios/app/strefakursowpl/id1479858028)

**In-app purchases:** none


### SkillUp

[App page](https://appshunter.io/ios/app/skillup-knowledge-is-power/id1616007109)

Access condensed audio lessons from bestselling non-fiction books on business, self-development, and finance. Enhance your skills and deepen knowledge with curated content designed for daily learning.

**Highlights:** 15-minute audio lessons, Summaries of bestselling non-fiction books, Development tracks for in-depth learning, Personalized daily recommendations, Offline listening capability, Note-taking feature

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SkillUp Premium Weekly | $0.99 | per 7 days |
| Monthly subscription | $5.99 | per month |
| Monthly subscription | $9.99 | per month |
| Monthly subscription | $9.99 | per month |
| Monthly subscription | $9.99 | per month |
| Yearly subscription | $49.99 | per year |
| SkillUp Premium Yearly | $89.99 | per year |
| SkillUp Premium Yearly | $99.99 | per year |
| Yearly subscription | $99.99 | per year |


## Frequently asked questions

### Is strefakursów.pl free?

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

### Is SkillUp free?

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

### Do strefakursów.pl or SkillUp have ads?

Neither strefakursów.pl nor SkillUp shows ads.

### Which is updated more often, strefakursów.pl or SkillUp?

strefakursów.pl ships an update every 3 weeks, and SkillUp every 3 weeks. Most recently, strefakursów.pl was updated on October 19, 2026 and SkillUp on October 3, 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.*