# KnowLang vs Skelix | Английский язык

The clearest difference is in-app purchases: Skelix | Английский язык at none against KnowLang's 7. On price, update cadence, ads 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. Skelix | Английский язык asks for nothing beyond the download.

KnowLang ships an update every 3 weeks, Skelix | Английский язык fortnightly. The most recent releases landed on June 1, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | KnowLang | Skelix | Английский язык |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowlang/id6444553784/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Freemium | — |
| Size | 31 MB | 46 MB |
| Requires iOS | **14.0** | 15.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Iaroslav Oleinikov](https://appshunter.io/developer/1651604102) | [Nikolai Grebnev](https://appshunter.io/developer/1762176754) |

## 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 |


### Skelix | Английский язык

[App page](https://appshunter.io/ios/app/skelix/id6624304132)

**In-app purchases:** none


## Frequently asked questions

### Is KnowLang free?

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

### Is Skelix | Английский язык free?

Skelix | Английский язык is free to download, with no in-app purchases.

### Do KnowLang or Skelix | Английский язык have ads?

Neither KnowLang nor Skelix | Английский язык shows ads.

### Which is updated more often, KnowLang or Skelix | Английский язык?

KnowLang ships an update every 3 weeks, and Skelix | Английский язык fortnightly. Most recently, KnowLang was updated on June 1, 2026 and Skelix | Английский язык on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*