# card2brain flashcards vs RadioPrepared

The clearest difference is device support: card2brain flashcards at 3 against RadioPrepared's 1. card2brain flashcards also leads on iOS requirement (11.0 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. card2brain flashcards sells 2 one-off in-app purchases and RadioPrepared sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

card2brain flashcards ships an update every 3 months, RadioPrepared every 2 months. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | card2brain flashcards | RadioPrepared |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/card2brain-flashcards/id412718155/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 87.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 17 MB | 26 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [webapps Burgdorf GmbH](https://appshunter.io/developer/721318689) | [Miguel Schulz](https://appshunter.io/developer/1487957589) |

## What reviewers say

### card2brain flashcards

[App page](https://appshunter.io/ios/app/card2brain-flashcards/id412718155)

Create and study flashcards on the go with millions of existing options. Collaborate with friends, join learning groups, and revise systematically using spaced repetition. Access your learning progress across multiple devices, even offline.

**Highlights:** Millions of pre-made flashcards, Create custom flashcards, Spaced repetition learning system, Collaborate and share with friends, Offline study mode, Cross-device synchronization

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM (12 months) | $24.99 | one-time |
| TEACHER (12 months) | $39.99 | one-time |


### RadioPrepared

[App page](https://appshunter.io/ios/app/radioprepared-azf/id6759160939)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Ready4Radio: AZF Premium | $8.99 | per month |
| 6 Months Ready4Radio: AZF Premium | $24.99 | per 6 months |


## Frequently asked questions

### Is card2brain flashcards free?

card2brain flashcards is free to download, with in-app purchases available.

### Is RadioPrepared free?

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

### Do card2brain flashcards or RadioPrepared have ads?

Neither card2brain flashcards nor RadioPrepared shows ads.

### Which is updated more often, card2brain flashcards or RadioPrepared?

card2brain flashcards ships an update every 3 months, and RadioPrepared every 2 months. Most recently, card2brain flashcards was updated on October 14, 2026 and RadioPrepared on October 16, 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.*