# C21Events vs Realscreen Summit

The clearest difference is update cadence: Realscreen Summit at every 10 days against C21Events's every 3 months. Realscreen Summit also leads on iOS requirement (15.5 vs 17.0). 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.

C21Events ships an update every 3 months, Realscreen Summit every 10 days. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | C21Events | Realscreen Summit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 10 days** |
| Size | 60 MB | 10 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [C21screen](https://appshunter.io/developer/462810211) | [Brunico Communications Ltd.](https://appshunter.io/developer/301347485) |

## What reviewers say

### C21Events

[App page](https://appshunter.io/ios/app/c21events/id6550917165)

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

**In-app purchases:** none


### Realscreen Summit

[App page](https://appshunter.io/ios/app/realscreen-summit/id6739566389)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is C21Events free?

C21Events is free to download, with no in-app purchases.

### Is Realscreen Summit free?

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

### Do C21Events or Realscreen Summit have ads?

Neither C21Events nor Realscreen Summit shows ads.

### Which is updated more often, C21Events or Realscreen Summit?

C21Events ships an update every 3 months, and Realscreen Summit every 10 days. Most recently, C21Events was updated on September 15, 2026 and Realscreen Summit on September 8, 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.*