# KeyFluent vs Alex

The clearest difference is update cadence: Alex at every 2 days against KeyFluent's every 5 days. KeyFluent's advantage is iOS requirement (17.0 vs 26.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. KeyFluent sells 2 in-app purchases, starting at $3.99 per month and Alex sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for KeyFluent against 5.0 for Alex. Both are backed by a comparable volume of ratings — 5 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

KeyFluent ships an update every 5 days, Alex every 2 days. The most recent releases landed on October 15, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | KeyFluent | Alex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/keyfluent/id6772628552/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/alex-learn-languages/id6805045670/reviews) |
| Number of ratings | 5 | 5 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 96 MB | 314 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stephen Alexander](https://appshunter.io/developer/6772628554) | [Roudot Timothe](https://appshunter.io/developer/6805045672) |

## What reviewers say

### KeyFluent

[App page](https://appshunter.io/ios/app/keyfluent/id6772628552)

Learn a new language effortlessly by integrating language learning directly into your daily messaging. This keyboard translates your typed messages in real-time and incoming messages, offering an immersive, low-pressure way to acquire vocabulary and phrases.

**Highlights:** Translate messages as you type, Automatic translation of incoming messages, Translate copied text, Hear word pronunciations, Save words to a personal deck, Vocabulary practice games, Adaptive keyboard layout

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeyFluent | $3.99 | per month |
| Annual | $39.99 | per year |


### Alex

[App page](https://appshunter.io/ios/app/alex-learn-languages/id6805045670)

Learn languages by integrating vocabulary discovery directly into your iPhone keyboard. Engage in short, fun games and review sessions based on the words you encounter daily. Track your progress with points, badges, and a vocabulary map.

**Highlights:** iPhone keyboard integration, Vocabulary discovery from daily typing, Short language games, Flashcard and multiple-choice reviews, Progress tracking and leaderboards, Vocabulary map

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Espiga Monthly | $6.99 | per month |
| Espiga Annual | $46.99 | per year |


## Frequently asked questions

### Is KeyFluent free?

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

### Is Alex free?

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

### Which has better reviews, KeyFluent or Alex?

KeyFluent and Alex are both rated 5.0 out of 5 on the App Store, from 5 and 5 ratings respectively.

### Do KeyFluent or Alex have ads?

Neither KeyFluent nor Alex shows ads.

### Which is updated more often, KeyFluent or Alex?

KeyFluent ships an update every 5 days, and Alex every 2 days. Most recently, KeyFluent was updated on October 15, 2026 and Alex on October 29, 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.*