# CPRmeter vs i

The clearest difference is update cadence: i at every 5 days against CPRmeter's every 13 months. CPRmeter'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.

CPRmeter ships an update every 13 months, i every 5 days. The most recent releases landed on August 15, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CPRmeter | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/cprmeter/id1436846145/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 166 MB | 15 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Laerdal Medical AS](https://appshunter.io/developer/1025710785) | [Innosonian Inc.](https://appshunter.io/developer/1345888426) |

## What reviewers say

### CPRmeter

[App page](https://appshunter.io/ios/app/cprmeter/id1436846145)

This app analyzes clinical CPR data from a connected device to provide detailed performance feedback. Users can review, edit, and share their CPR sessions for training and quality improvement purposes. It serves as a debriefing tool, not for making medical decisions.

**Highlights:** Analyze clinical CPR data, High-fidelity performance feedback, Edit specific CPR episodes, Share performance data, Debriefing and training tool

**Features:** macOS Compatibility

**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 CPRmeter free?

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

### Is i free?

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

### Do CPRmeter or i have ads?

Neither CPRmeter nor i shows ads.

### Which is updated more often, CPRmeter or i?

CPRmeter ships an update every 13 months, and i every 5 days. Most recently, CPRmeter was updated on August 15, 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.*