# Stude vs Onyx

The clearest difference is in-app purchases: Onyx at none against Stude's 2. Onyx also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Stude sells 2 in-app purchases, starting at $1.49 per month. Onyx asks for nothing beyond the download.

Stude ships an update monthly, Onyx every 2 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Stude | Onyx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/stude/id1645336650/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 57 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ali Hawari](https://appshunter.io/developer/1645336652) | [Eymeric Dechelette](https://appshunter.io/developer/1703051211) |

## What reviewers say

### Stude

[App page](https://appshunter.io/ios/app/stude/id1645336650)

This app uses spaced repetition to create personalized daily to-do lists for efficient studying. It helps users retain information long-term by adapting to their feedback and allows for customization of goals and study sessions. Users can also attach files and organize unlearned chapters.

**Highlights:** Spaced repetition algorithms, Customizable daily goals, File attachment to courses, Organize unlearned chapters, Study session timing, Light and dark themes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stude + | $1.49 | per month |
| Stude + | $17.99 | per year |


### Onyx

[App page](https://appshunter.io/ios/app/onyx-everything-for-lyon-1/id6462440486)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stude free?

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

### Is Onyx free?

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

### Do Stude or Onyx have ads?

Stude shows ads; Onyx does not.

### Which is updated more often, Stude or Onyx?

Stude ships an update monthly, and Onyx every 2 months. Most recently, Stude was updated on November 3, 2026 and Onyx on October 27, 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.*