# Curiosity vs StudyKit

The clearest difference is in-app purchases: Curiosity at none against StudyKit's 2. StudyKit's advantage is update cadence (every 2 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. StudyKit sells 2 in-app purchases, starting at $1.29 per month. Curiosity asks for nothing beyond the download.

Curiosity ships an update weekly, StudyKit every 2 days. The most recent releases landed on September 14, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Curiosity | StudyKit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Size | 33 MB | 30 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Javier Cabo Roca](https://appshunter.io/developer/645700643) | [Ugur Ersoy](https://appshunter.io/developer/1337866568) |

## What reviewers say

### Curiosity

[App page](https://appshunter.io/ios/app/curiosity-space-and-science/id6756880503)

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

**In-app purchases:** none


### StudyKit

[App page](https://appshunter.io/ios/app/studykit-study-planner/id6769748952)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.29 | per month |
| Yearly | $7.99 | per year |


## Frequently asked questions

### Is Curiosity free?

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

### Is StudyKit free?

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

### Do Curiosity or StudyKit have ads?

Neither Curiosity nor StudyKit shows ads.

### Which is updated more often, Curiosity or StudyKit?

Curiosity ships an update weekly, and StudyKit every 2 days. Most recently, Curiosity was updated on September 14, 2026 and StudyKit on September 16, 2026.

---

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