# IRIS (Offline GPT) vs EngClass

The clearest difference is in-app purchases: IRIS (Offline GPT) at none against EngClass's 6. EngClass's advantage is iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. EngClass sells 6 in-app purchases, starting at $7.99 per month. IRIS (Offline GPT) asks for nothing beyond the download.

## The numbers

| Metric | IRIS (Offline GPT) | EngClass |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 34 MB | 38 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nervesparks Private limited](https://appshunter.io/developer/1834647354) | [CET (THAILAND) COMPANY LIMITED](https://appshunter.io/developer/1470055217) |

## What reviewers say

### IRIS (Offline GPT)

[App page](https://appshunter.io/ios/app/iris-offline-gpt/id6751331448)

**Features:** macOS Compatibility

**In-app purchases:** none


### EngClass

[App page](https://appshunter.io/ios/app/engclass-roleplay-learning/id6770129302)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EngClass Pro | $7.99 | per month |
| EngClass Pro+ | $15.99 | per month |
| EngClass Ultimate | $23.99 | per month |
| Starter Credits | $2.99 | one-time |
| Pro Pack Credits | $7.99 | one-time |
| Power Credits | $17.99 | one-time |


## Frequently asked questions

### Is IRIS (Offline GPT) free?

IRIS (Offline GPT) is free to download, with no in-app purchases.

### Is EngClass free?

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

### Do IRIS (Offline GPT) or EngClass have ads?

Neither IRIS (Offline GPT) nor EngClass 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.*