# Data Collection vs CIM Events

The clearest difference is price: CIM Events at Free against Data Collection's $0.99. CIM Events also leads on iOS requirement (15.6 vs 18.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

CIM Events is free to download; Data Collection costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Data Collection ships an update every 2 months, CIM Events every 3 months. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Data Collection | CIM Events |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.1 (10 ratings)](https://appshunter.io/ios/app/data-collection/id479348835/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | — |
| Size | 1 MB | 57 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Chris Wozny](https://appshunter.io/developer/479348838) | [Canadian Institute of Mining, Metallurgy and Petroleum](https://appshunter.io/developer/1477092249) |

## What reviewers say

### Data Collection

[App page](https://appshunter.io/ios/app/data-collection/id479348835)

This app allows researchers to capture accelerometer, gyroscope, and magnetometer data directly from their iOS devices. It time stamps the captured data and includes Apple's enhanced device motion for research or experimentation.

**Highlights:** Capture accelerometer data, Capture gyroscope data, Capture magnetometer data, Time-stamped data, Includes enhanced device motion data

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

**In-app purchases:** none


### CIM Events

[App page](https://appshunter.io/ios/app/cim-events/id6470238786)

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

**In-app purchases:** none


## Frequently asked questions

### Is Data Collection free?

Data Collection costs $0.99, with no in-app purchases.

### Is CIM Events free?

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

### Do Data Collection or CIM Events have ads?

Neither Data Collection nor CIM Events shows ads.

### Which is updated more often, Data Collection or CIM Events?

Data Collection ships an update every 2 months, and CIM Events every 3 months. Most recently, Data Collection was updated on September 17, 2026 and CIM Events on September 16, 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.*