# KOSI vs Ed.One Summit

The clearest difference is ads: KOSI at none against Ed.One Summit's shown. KOSI also leads on device support (3 vs 1). Ed.One Summit's advantage is update cadence (fortnightly vs every 2 months). On price, in-app purchases and iOS requirement there is nothing between them.

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

KOSI ships an update every 2 months, Ed.One Summit fortnightly. The most recent releases landed on October 27, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | KOSI | Ed.One Summit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Size | 10 MB | 141 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [IBILL SRL SEMPLIFICATA](https://appshunter.io/developer/1458513076) | [WP Wissensportal GmbH](https://appshunter.io/developer/475957378) |

## What reviewers say

### KOSI

[App page](https://appshunter.io/ios/app/kosi/id6473046077)

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

**In-app purchases:** none


### Ed.One Summit

[App page](https://appshunter.io/ios/app/edone-summit/id6749626122)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is KOSI free?

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

### Is Ed.One Summit free?

Ed.One Summit is free to download, with no in-app purchases.

### Do KOSI or Ed.One Summit have ads?

Ed.One Summit shows ads; KOSI does not.

### Which is updated more often, KOSI or Ed.One Summit?

KOSI ships an update every 2 months, and Ed.One Summit fortnightly. Most recently, KOSI was updated on October 27, 2026 and Ed.One Summit on October 17, 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.*