# KnowLang vs Учи Слова

The clearest difference is update cadence: Учи Слова at every 9 days against KnowLang's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KnowLang sells 7 in-app purchases, starting at $2.99 per month and Учи Слова sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

KnowLang ships an update every 3 weeks, Учи Слова every 9 days. The most recent releases landed on June 1, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | KnowLang | Учи Слова |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowlang/id6444553784/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Freemium | — |
| Size | 31 MB | 28 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Iaroslav Oleinikov](https://appshunter.io/developer/1651604102) | [NINA SAVELJEVA](https://appshunter.io/developer/962670684) |

## What reviewers say

### KnowLang

[App page](https://appshunter.io/ios/app/knowlang/id6444553784)

Master English with a comprehensive app featuring a 18,000-word dictionary, irregular verb drills, and grammar lessons from A1 to C2. Engage with pronunciation practice, reading materials, and word games to enhance your vocabulary and fluency.

**Highlights:** 18,000-word dictionary, Irregular verb training, Grammar lessons (A1-C2), Pronunciation practice, English books, Word games

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowLang Pro (1 месяц) | $2.99 | per month |
| KnowLang Pro (6 месяцев) | $9.99 | per 6 months |
| KnowLang Pro (1 год) | $17.99 | per year |
| 15 монет | $0.29 | one-time |
| 60 монет | $0.99 | one-time |
| 140 монет | $1.99 | one-time |
| 300 монет | $2.99 | one-time |


### Учи Слова

[App page](https://appshunter.io/ios/app/id6447947386)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Docent | $0.99 | per month |
| Professor | $1.99 | per month |


## Frequently asked questions

### Is KnowLang free?

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

### Is Учи Слова free?

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

### Do KnowLang or Учи Слова have ads?

Neither KnowLang nor Учи Слова shows ads.

### Which is updated more often, KnowLang or Учи Слова?

KnowLang ships an update every 3 weeks, and Учи Слова every 9 days. Most recently, KnowLang was updated on June 1, 2026 and Учи Слова on May 16, 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.*