# Learn vocabulary vs KeyFluent

The clearest difference is rating: KeyFluent at 5.0 against Learn vocabulary's 4.5. Learn vocabulary's advantage is in-app purchases (none vs 2). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. KeyFluent sells 2 in-app purchases, starting at $3.99 per month. Learn vocabulary asks for nothing beyond the download.

KeyFluent holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Learn vocabulary | KeyFluent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/learn-vocabulary-5000words/id6478545812/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/keyfluent/id6772628552/reviews)** |
| Number of ratings | **6** | 5 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 301 MB | 96 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Alvaro Jose Jimenez Palenzuela](https://appshunter.io/developer/1733282666) | [Stephen Alexander](https://appshunter.io/developer/6772628554) |

## What reviewers say

### Learn vocabulary

[App page](https://appshunter.io/ios/app/learn-vocabulary-5000words/id6478545812)

Master essential vocabulary through speech-based learning. This minimalist app focuses on the most frequent words in a language, offering smart repetition and progress tracking. It works entirely offline and adapts to your learning goals.

**Highlights:** Learn by speaking, Focus on most useful words, Placement test, Spaced repetition, Progress tracking, Offline functionality, Dark mode design

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Learn vocabulary free?

Learn vocabulary is free to download, with no in-app purchases.

### Is KeyFluent free?

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

### Which has better reviews, Learn vocabulary or KeyFluent?

KeyFluent is rated higher. Learn vocabulary averages 4.5 out of 5 from 6 ratings, while KeyFluent averages 5.0 from 5 ratings.

### Do Learn vocabulary or KeyFluent have ads?

Neither Learn vocabulary nor KeyFluent shows ads.

### Which is updated more often, Learn vocabulary or KeyFluent?

Learn vocabulary ships an update every 5 days, and KeyFluent every 5 days. Most recently, Learn vocabulary was updated on October 27, 2026 and KeyFluent on October 15, 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.*