# Ambi vs KnowLang

Ambi and KnowLang are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 9, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Ambi | KnowLang |
| --- | --- | --- |
| 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 3 weeks |
| Monetization | — | Freemium |
| Size | 63 MB | 31 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Anastasiia Holovko](https://appshunter.io/developer/1598620830) | [Iaroslav Oleinikov](https://appshunter.io/developer/1651604102) |

## What reviewers say

### Ambi

[App page](https://appshunter.io/ios/app/ambi/id1662935613)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ambi Unlimited | $2.99 | per month |
| ambi Unlimited | $14.99 | per year |


### 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 |


## Frequently asked questions

### Is Ambi free?

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

### Is KnowLang free?

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

### Do Ambi or KnowLang have ads?

Neither Ambi nor KnowLang shows ads.

### Which is updated more often, Ambi or KnowLang?

Ambi ships an update every 3 weeks, and KnowLang every 3 weeks. Most recently, Ambi was updated on September 9, 2026 and KnowLang on June 1, 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.*