# Carnot vs OnEvent

The clearest difference is update cadence: Carnot at every 4 days against OnEvent's every 5 weeks. 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.

Carnot ships an update every 4 days, OnEvent every 5 weeks. The most recent releases landed on September 7, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Carnot | OnEvent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onevent/id6744887733/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Monetization | — | Free |
| Size | 25 MB | 45 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mainscope LLC](https://appshunter.io/developer/1481624653) | [Teknowledge Software](https://appshunter.io/developer/348684387) |

## What reviewers say

### Carnot

[App page](https://appshunter.io/ios/app/carnot/id1663589443)

**Features:** macOS Compatibility

**In-app purchases:** none


### OnEvent

[App page](https://appshunter.io/ios/app/onevent/id6744887733)

Streamline event management from a single application. Register guests, manage real-time schedules, speakers, and event maps. Send instant invitations and notifications for seamless organization.

**Highlights:** Guest registration, Real-time agenda management, Speaker management, Event maps and guides, Instant invitations, Push notifications

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Carnot free?

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

### Is OnEvent free?

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

### Do Carnot or OnEvent have ads?

Neither Carnot nor OnEvent shows ads.

### Which is updated more often, Carnot or OnEvent?

Carnot ships an update every 4 days, and OnEvent every 5 weeks. Most recently, Carnot was updated on September 7, 2026 and OnEvent on June 4, 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.*