# Koro AI vs Marelle

Koro AI and Marelle 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. Neither carries in-app purchases, so what you see is what you pay.

Koro AI ships an update every 5 days, Marelle every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Koro AI | Marelle |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 18 MB | 8 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Koro AI](https://appshunter.io/developer/6786231502) | [Sid Bentifraouine](https://appshunter.io/developer/1510441636) |

## What reviewers say

### 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


### Marelle

[App page](https://appshunter.io/ios/app/marelle-carnet-ief/id6805425372)

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

**In-app purchases:** none


## Frequently asked questions

### Is Koro AI free?

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

### Is Marelle free?

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

### Do Koro AI or Marelle have ads?

Neither Koro AI nor Marelle shows ads.

### Which is updated more often, Koro AI or Marelle?

Koro AI ships an update every 5 days, and Marelle every 4 days. Most recently, Koro AI was updated on October 25, 2026 and Marelle on October 25, 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.*