# Rosie's Riddle 2 vs StudyDeck

The clearest difference is update cadence: StudyDeck at every 2 weeks against Rosie's Riddle 2's every 8 months. StudyDeck also leads on device support (3 vs 1). Rosie's Riddle 2's advantage is iOS requirement (16.0 vs 26.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Rosie's Riddle 2 sells 1 one-off in-app purchase and StudyDeck sells 2 in-app purchases, starting at $12.99 per year. Whichever you choose, the download price is not the number that matters.

Rosie's Riddle 2 ships an update every 8 months, StudyDeck every 2 weeks. Both last shipped on October 3, 2026.

## The numbers

| Metric | Rosie's Riddle 2 | StudyDeck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rosies-riddle-2/id6478018621/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 9 MB | 13 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Robert Heracles](https://appshunter.io/developer/905255640) | [Frederic Bacro](https://appshunter.io/developer/1482824795) |

## What reviewers say

### Rosie's Riddle 2

[App page](https://appshunter.io/ios/app/rosies-riddle-2/id6478018621)

Embark on a quest to help a unicorn recover lost diamonds by solving multiplication riddles. This educational game is designed to make practicing math skills enjoyable and engaging for young learners.

**Highlights:** Multiplication skill training, Riddle-solving gameplay, Educational purpose, Fun and engaging, Unicorn character

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contribution | $0.99 | one-time |


### StudyDeck

[App page](https://appshunter.io/ios/app/studydeck-ai-flashcards/id6760428575)

Transform notes, PDFs, or photos into AI-powered flashcards instantly. Offers seven study modes, including spaced repetition and practice tests, to help you learn smarter and ace exams. On-device AI ensures your study materials remain private.

**Highlights:** AI-powered flashcard generation, Import notes, PDFs, and photos, Seven distinct study modes, Spaced repetition (FSRS algorithm), On-device AI for privacy, Progress tracking and analytics, Share decks with classmates

**Features:** Safari Extension, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyDeck Premium Annual | $12.99 | per year |
| Lifetime Pass | $39.99 | one-time |


## Frequently asked questions

### Is Rosie's Riddle 2 free?

Rosie's Riddle 2 is free to download, with in-app purchases available.

### Is StudyDeck free?

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

### Do Rosie's Riddle 2 or StudyDeck have ads?

Neither Rosie's Riddle 2 nor StudyDeck shows ads.

### Which is updated more often, Rosie's Riddle 2 or StudyDeck?

Rosie's Riddle 2 ships an update every 8 months, and StudyDeck every 2 weeks. Most recently, Rosie's Riddle 2 was updated on October 3, 2026 and StudyDeck 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.*