# FlashCard Easy vs DuoBook.co

The clearest difference is update cadence: DuoBook.co at every 4 days against FlashCard Easy's every 10 days. FlashCard Easy's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FlashCard Easy sells 4 in-app purchases, starting at $0.49 per month and DuoBook.co sells 1 in-app purchase, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

FlashCard Easy ships an update every 10 days, DuoBook.co every 4 days. The most recent releases landed on June 26, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | FlashCard Easy | DuoBook.co |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flashcard-easy/id6761342533/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 55 MB | 33 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [kerim kahraman](https://appshunter.io/developer/1888999185) | [Emin Onur Karakaslar](https://appshunter.io/developer/1891281160) |

## What reviewers say

### FlashCard Easy

[App page](https://appshunter.io/ios/app/flashcard-easy/id6761342533)

Build vocabulary faster with smart flashcards, translations, and dictionary support. Organize and study words effectively for school, travel, work, or daily life. Offers free and pro features with downloadable content.

**Highlights:** Smart flashcards, Translation features, Dictionary support, Downloadable learning content, Unlimited word creation (Pro), Import compatible files (Pro)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Monthly | $0.49 | per month |
| FlashCard Easy Pro | $0.99 | per month |
| FlashCard Easy Pro | $5.99 | per year |
| Lifetime | $14.99 | one-time |


### DuoBook.co

[App page](https://appshunter.io/ios/app/duobookco/id6762019079)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DuoBook Pro | $7.99 | per month |


## Frequently asked questions

### Is FlashCard Easy free?

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

### Is DuoBook.co free?

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

### Do FlashCard Easy or DuoBook.co have ads?

Neither FlashCard Easy nor DuoBook.co shows ads.

### Which is updated more often, FlashCard Easy or DuoBook.co?

FlashCard Easy ships an update every 10 days, and DuoBook.co every 4 days. Most recently, FlashCard Easy was updated on June 26, 2026 and DuoBook.co on September 19, 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.*