# PPI Events vs CAIR Events App

The clearest difference is iOS requirement: PPI Events at 12.1 against CAIR Events App's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

PPI Events ships an update every 6 months, CAIR Events App every 4 months. The most recent releases landed on November 3, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | PPI Events | CAIR Events App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Size | 40 MB | 6 MB |
| Requires iOS | **12.1** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ferdian .](https://appshunter.io/developer/1568040148) | [Canadian Association for Interventional Radiology](https://appshunter.io/developer/1462408219) |

## What reviewers say

### PPI Events

[App page](https://appshunter.io/ios/app/ppi-events/id1568040146)

**Features:** macOS Compatibility

**In-app purchases:** none


### CAIR Events App

[App page](https://appshunter.io/ios/app/cair-events-app/id6444632283)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PPI Events free?

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

### Is CAIR Events App free?

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

### Do PPI Events or CAIR Events App have ads?

Neither PPI Events nor CAIR Events App shows ads.

### Which is updated more often, PPI Events or CAIR Events App?

PPI Events ships an update every 6 months, and CAIR Events App every 4 months. Most recently, PPI Events was updated on November 3, 2026 and CAIR Events App 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.*