# Crochet Diagrams vs Study Timer

The clearest difference is ads: Crochet Diagrams at none against Study Timer's shown. Crochet Diagrams also leads on update cadence (every 9 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Crochet Diagrams sells 2 in-app purchases, starting at $3.99 per month and Study Timer sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Crochet Diagrams ships an update every 9 days, Study Timer every 4 months. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Crochet Diagrams | Study Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 4 months |
| Size | 54 MB | 75 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michal Janecko](https://appshunter.io/developer/1803610749) | [kota tada](https://appshunter.io/developer/1658942612) |

## What reviewers say

### Crochet Diagrams

[App page](https://appshunter.io/ios/app/crochet-diagrams/id6743626253)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $3.99 | per month |
| Annual Subscription | $24.99 | per year |


### Study Timer

[App page](https://appshunter.io/ios/app/study-timer-studyflow/id6755078518)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free for 1 month | $4.99 | per month |
| Ad-free for 1 year | $29.99 | per year |


## Frequently asked questions

### Is Crochet Diagrams free?

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

### Is Study Timer free?

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

### Do Crochet Diagrams or Study Timer have ads?

Study Timer shows ads; Crochet Diagrams does not.

### Which is updated more often, Crochet Diagrams or Study Timer?

Crochet Diagrams ships an update every 9 days, and Study Timer every 4 months. Most recently, Crochet Diagrams was updated on October 30, 2026 and Study Timer on November 5, 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.*