# Cardinal Events vs ATN Innovation Summit

The clearest difference is update cadence: ATN Innovation Summit at every 2 weeks against Cardinal Events's every 2 months. ATN Innovation Summit also leads on iOS requirement (13.0 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.

Cardinal Events ships an update every 2 months, ATN Innovation Summit every 2 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cardinal Events | ATN Innovation Summit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 62 MB | 82 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stanford University](https://appshunter.io/developer/292922032) | [vFairs LLC](https://appshunter.io/developer/1349888986) |

## What reviewers say

### Cardinal Events

[App page](https://appshunter.io/ios/app/cardinal-events/id6469013655)

**Features:** macOS Compatibility

**In-app purchases:** none


### ATN Innovation Summit

[App page](https://appshunter.io/ios/app/atn-innovation-summit/id6761887801)

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

**In-app purchases:** none


## Frequently asked questions

### Is Cardinal Events free?

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

### Is ATN Innovation Summit free?

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

### Do Cardinal Events or ATN Innovation Summit have ads?

Neither Cardinal Events nor ATN Innovation Summit shows ads.

### Which is updated more often, Cardinal Events or ATN Innovation Summit?

Cardinal Events ships an update every 2 months, and ATN Innovation Summit every 2 weeks. Most recently, Cardinal Events was updated on November 7, 2026 and ATN Innovation Summit on October 31, 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.*