# Chert vs ISN Observer App

The clearest difference is iOS requirement: Chert at 8.0 against ISN Observer App's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Chert | ISN Observer App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (21 ratings)](https://appshunter.io/ios/app/chert-alaskas-native-language-keyboard/id1126409399/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Free | — |
| Size | 15 MB | 151 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Grant Magdanz](https://appshunter.io/developer/1035519553) | [Aleut Community of St. Paul Island Tribal Government](https://appshunter.io/developer/1329178887) |

## What reviewers say

### Chert

[App page](https://appshunter.io/ios/app/chert-alaskas-native-language-keyboard/id1126409399)

Type in all 20 of Alaska's Native languages with this custom keyboard. It adds special characters not found on default keyboards, allowing you to communicate in emails, texts, and social media posts. Customize which characters appear based on the languages you use, all while maintaining full English functionality.

**Highlights:** Supports 20 Alaska Native languages, Adds special characters not on default keyboards, Customizable character layout, Press-and-hold character input, Maintains full English functionality, Third-party keyboard integration

**Features:** macOS Compatibility

**In-app purchases:** none


### ISN Observer App

[App page](https://appshunter.io/ios/app/isn-observer-app/id6502642318)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chert free?

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

### Is ISN Observer App free?

ISN Observer App is free to download, with no in-app purchases.

### Do Chert or ISN Observer App have ads?

Neither Chert nor ISN Observer App shows ads.

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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.*