# E4All vs Koro AI

E4All and Koro AI are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | E4All | Koro AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Freemium |
| Size | 12 MB | 17 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RUBITEK SOLUTIONS LIMITED](https://appshunter.io/developer/1447510375) | [Koro AI](https://appshunter.io/developer/6786231502) |

## What reviewers say

### E4All

[App page](https://appshunter.io/ios/app/e4all/id6739617361)

**Features:** macOS Compatibility

**In-app purchases:** none


### Koro AI

[App page](https://appshunter.io/ios/app/koro-ai-study-notes-and-prep/id6786231499)

Transform any course material into study aids like summaries, flashcards, and quizzes. This app guides your revision with a personalized study path, helping you learn faster and retain more information for exams.

**Highlights:** Instant summaries from documents, Auto-generated flashcards, Custom quiz mode, Ask questions about concepts, Personalized study path, Supports various document types

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E4All free?

E4All is free to download, with no in-app purchases.

### Is Koro AI free?

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

### Do E4All or Koro AI have ads?

Neither E4All nor Koro AI 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.*