# Fully Fluent vs Calibre Project

The clearest difference is ads: Calibre Project at none against Fully Fluent's shown. Fully Fluent's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Fully Fluent sells 7 in-app purchases, starting at $4.99 per 7 days and Calibre Project sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Fully Fluent ships an update every 3 weeks, Calibre Project every 6 weeks. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Fully Fluent | Calibre Project |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (479 ratings)](https://appshunter.io/ios/app/fully-fluent-learn-languages/id1670008951/reviews)** | — |
| Number of ratings | **479** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 198 MB | 102 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fully Fluent](https://appshunter.io/developer/1670008953) | [Fraction AS](https://appshunter.io/developer/1780522341) |

## What reviewers say

### Fully Fluent

[App page](https://appshunter.io/ios/app/fully-fluent-learn-languages/id1670008951)

Master new languages like English, Spanish, French, and more with AI-powered feedback. Practice speaking naturally and build confidence with a patient, 24/7 AI teacher. Customize your learning experience to fit your needs.

**Highlights:** AI-powered personalized feedback, 24/7 AI teacher, Practice speaking naturally, Multiple language options, Customizable learning pace, Grammar and sentence correction

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fully Fluent Premium | $4.99 | per 7 days |
| Fully Fluent Premium | $14.99 | per 2 months |
| 1 Month Subscription | $14.99 | per month |
| Fully Fluent Premium | $24.99 | per 2 months |
| Fully Fluent Premium | $39.99 | per 6 months |
| Fully Fluent Premium | $59.99 | per year |
| Fully Fluent Premium | $69.99 | per year |


### Calibre Project

[App page](https://appshunter.io/ios/app/calibre-project/id6738384352)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calibre Learning Kit | $299.99 | one-time |


## Frequently asked questions

### Is Fully Fluent free?

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

### Is Calibre Project free?

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

### Do Fully Fluent or Calibre Project have ads?

Fully Fluent shows ads; Calibre Project does not.

### Which is updated more often, Fully Fluent or Calibre Project?

Fully Fluent ships an update every 3 weeks, and Calibre Project every 6 weeks. Most recently, Fully Fluent was updated on October 14, 2026 and Calibre Project on October 9, 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.*