# CPR add vs i

The clearest difference is update cadence: i at every 5 days against CPR add's every 2 months. CPR add's advantage is iOS requirement (13.0 vs 16.0). 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.

CPR add ships an update every 2 months, i every 5 days. The most recent releases landed on June 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CPR add | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (4 ratings)](https://appshunter.io/ios/app/cpr-add-on-kit-instructor/id1203164623/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 70 MB | 15 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [I.M.LAB inc](https://appshunter.io/developer/1072264906) | [Innosonian Inc.](https://appshunter.io/developer/1345888426) |

## What reviewers say

### CPR add

[App page](https://appshunter.io/ios/app/cpr-add-on-kit-instructor/id1203164623)

This application provides real-time feedback for CPR training, monitoring compression rate, depth, recoil, breath volume, and hands-off time. It supports up to six manikins and helps instructors manage student performance results, aligning with the latest AHA guidelines.

**Highlights:** Real-time CPR performance feedback, Monitors compression rate, depth, and recoil, Provides breath volume and hands-off time data, Supports up to six manikins, Manages student results, Adheres to AHA guidelines

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

**In-app purchases:** none


### i

[App page](https://appshunter.io/ios/app/i-crs/id6478954870)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CPR add free?

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

### Is i free?

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

### Do CPR add or i have ads?

Neither CPR add nor i shows ads.

### Which is updated more often, CPR add or i?

CPR add ships an update every 2 months, and i every 5 days. Most recently, CPR add was updated on June 1, 2026 and i on September 21, 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.*