# FluentBrain vs SentenceDeck

The clearest difference is iOS requirement: FluentBrain at 15.1 against SentenceDeck's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FluentBrain sells 2 in-app purchases, starting at $9.99 per month and SentenceDeck sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | FluentBrain | SentenceDeck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 months |
| Size | 35 MB | 10 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Balik Games](https://appshunter.io/developer/1589824941) | [奇濂 任](https://appshunter.io/developer/1843376248) |

## What reviewers say

### FluentBrain

[App page](https://appshunter.io/ios/app/fluentbrain-learn-like-native/id6742416529)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription - Monthly | $9.99 | per month |
| Pro Subscription - Annual | $79.99 | per year |


### SentenceDeck

[App page](https://appshunter.io/ios/app/sentencedeck-shadowing/id6759489049)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Credits 100 | $0.99 | one-time |
| Credits 500 | $3.99 | one-time |
| Credits 1200 | $7.99 | one-time |


## Frequently asked questions

### Is FluentBrain free?

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

### Is SentenceDeck free?

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

### Do FluentBrain or SentenceDeck have ads?

Neither FluentBrain nor SentenceDeck shows ads.

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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.*