# iPolyglot vs Isostasy

The clearest difference is in-app purchases: Isostasy at none against iPolyglot's 18. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. iPolyglot sells 18 in-app purchases, starting at $2.99 per month. Isostasy asks for nothing beyond the download.

iPolyglot ships an update every 11 days, Isostasy weekly. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | iPolyglot | Isostasy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (106 ratings)](https://appshunter.io/ios/app/ipolyglot-learn-language-ai/id6450938175/reviews)** | — |
| Number of ratings | **106** | — |
| Positive reviews | 78.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 96 MB | 1 MB |
| Requires iOS | 18.5 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iPolyglot](https://appshunter.io/developer/1831662857) | [Nestor Cardozo](https://appshunter.io/developer/550960803) |

## What reviewers say

### iPolyglot

[App page](https://appshunter.io/ios/app/ipolyglot-learn-language-ai/id6450938175)

Learn new languages through interactive stories, AI-powered conversations, and engaging games. Focus on relevant vocabulary and practice speaking confidently without fear of mistakes. Daily challenges and a smart review system make learning fun and effective.

**Highlights:** Interactive story-based learning, AI conversation practice, Spaced repetition vocabulary review, Personalized word learning, Daily learning challenges, Gamified learning experience, Support for over 60 languages

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Speak Italian Language | $2.99 | per month |
| Speak English Language | $2.99 | per month |
| Speak Russian Language | $2.99 | per month |
| Speak Spanish Fluently | $2.99 | per month |
| Speak German Language | $2.99 | per month |
| Speak French Language | $2.99 | per month |
| Language Coach Pro | $4.99 | per month |
| Language Coach Pro | $5.99 | per 3 months |
| Speak French Language | $5.99 | per 3 months |
| Speak English Language | $5.99 | per 3 months |
| Speak Russian Language | $9.99 | per year |
| Speak German Language | $19.99 | per year |
| Speak Italian Language | $19.99 | per year |
| Speak English Language | $19.99 | per year |
| Speak Spanish Fluently | $19.99 | per year |
| Speak French Language | $19.99 | per year |
| Language Coach Pro | $29.99 | per year |
| One time purchase | $99.99 | one-time |


### Isostasy

[App page](https://appshunter.io/ios/app/isostasy/id6761372132)

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

**In-app purchases:** none


## Frequently asked questions

### Is iPolyglot free?

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

### Is Isostasy free?

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

### Do iPolyglot or Isostasy have ads?

Neither iPolyglot nor Isostasy shows ads.

### Which is updated more often, iPolyglot or Isostasy?

iPolyglot ships an update every 11 days, and Isostasy weekly. Most recently, iPolyglot was updated on October 24, 2026 and Isostasy on October 3, 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.*