# SKUL vs HarcApp!

The clearest difference is update cadence: HarcApp! at monthly against SKUL's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SKUL ships an update every 2 months, HarcApp! monthly. The most recent releases landed on October 2, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SKUL | HarcApp! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skul/id1638873437/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 9 MB | 222 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Interia.pl sp. z o.o.](https://appshunter.io/developer/1888435067) | [Daniel Iwanicki](https://appshunter.io/developer/1849331027) |

## What reviewers say

### SKUL

[App page](https://appshunter.io/ios/app/skul/id1638873437)

Access verified solutions and explanations for homework assignments from textbooks and workbooks for grades 4-8 and high school. Covers subjects like math, chemistry, and Polish, with practice exams also available. It's a free, ad-free resource to help students understand and verify their homework.

**Highlights:** Verified homework solutions, Teacher-prepared explanations, Covers grades 4-8 and high school, Subjects: Math, Chemistry, Polish, History, Biology, Physics, Geography, Nature, WOS, Practice exams for Matura and 8th grade, Ad-free and no account required

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

**In-app purchases:** none


### HarcApp!

[App page](https://appshunter.io/ios/app/harcapp/id6754627071)

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

**In-app purchases:** none


## Frequently asked questions

### Is SKUL free?

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

### Is HarcApp! free?

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

### Do SKUL or HarcApp! have ads?

Neither SKUL nor HarcApp! shows ads.

### Which is updated more often, SKUL or HarcApp!?

SKUL ships an update every 2 months, and HarcApp! monthly. Most recently, SKUL was updated on October 2, 2026 and HarcApp! on October 21, 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.*