# Data Collection

> iOS sensor data capture for research and experimentation. (iPhone/iPad app by Chris Wozny.)

- Source: https://appshunter.io/ios/app/data-collection/id479348835 (this page in markdown: same URL + `.md`)
- Developer: [Chris Wozny](https://appshunter.io/developer/479348838)
- Category: Education, Utilities
- Price: $0.99
- Rating: 2.90/5 from 9 App Store ratings · 23 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 1 MB
- Languages: American English, French (France), German (Germany), Polish, European Spanish
- Released: 2011-11-15
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/data-collection/id479348835/reviews.md

## What is Data Collection?

This app was developed for researchers so that they may capture accelerometer, gyroscope, and magnetometer data directly from their iOS device to use for research or play around with. The data is time stamped and the data from Apple's enhanced device motion is included for reference.

## Key features

- Capture accelerometer data
- Capture gyroscope data
- Capture magnetometer data
- Time-stamped data
- Includes enhanced device motion data

## Recent user reviews (10 of 23)

All indexed reviews: https://appshunter.io/ios/app/data-collection/id479348835/reviews.md

### 1/5 — App is not functional

*2020-10-12*

Purchased app for a dollar then realized it doesn’t work. I cannot click the record button or anything else in the app. Waste of money

### 1/5 — Says it collect data, but delivers something a little different

*2019-09-10*

1) App Does not seem to show up in Settings.
2) App is not collecting GPS data.
3) App output CVS data has unnecessary data:
Want as follows:
Timestamp, Accel_X, Accel_Y, Accel_Z, Gyro_X, Gyro_Y, Gyro_Z, Mag_X, Mag_Y, Mag_Z, Lat, Long

Gyro should be rads/sec.

**Developer response:** Please make sure that location services are enabled for the app.
Also, feel free to modify the data in the CSV file to units of your liking.

### 4/5 — Good

*2019-05-31, version 1.14*

Interested in the magnetometer more than the rest. Seems to be quite accurate apart from the Y axis. This has a scaling problem. Worth 4 stars.

### 1/5 — No Lat/Long in output file

*2017-09-06*

Useless DataCollection without positional lat long!!!

**Developer response:** Please make sure that location services are enabled for the app.

### 4/5 — Sample rate to high

*2015-10-06, version 1.0.7*

App has potential but the sample rate is too high, will produce large amount of data. Need to be able to select a sample rate of say once a minute to once an hour to get a sensible data quantity in a day to see trends.

### 4/5 — No Data File

*2015-01-05*

This app does not email the data file nor put it in iTunes using iOS 8.  I have an old phone still using iOS7 and had no problem.  In addition, the developer has disappeared along with his data file.  Other than that, the app is exactly what I wanted.

**Developer response:** Please make sure your phone is configured with a Mail account in order to email the CSV file.

### 4/5 — You Made my day

*2014-10-19*

Man, i suggest you to use the same export format of pocket imu app. It's easier to process with a spreadsheet and to produce graph for engineering paper! You have no idea how important is this app!

### 3/5 — Wrong results

*2013-11-20*

The magnetometer data is wrong compare to three other apps I used.

### 5/5 — Perfect

*2013-10-20*

It's good to see the numbers behind the sensors. The potential uses are amazing.

### 4/5 — Geeky fun app

*2013-09-21*

This is a fun way to exploit the sensor information in my iPhone. The latest update increased the sampling rate to 500 Hz; however, the magnetometer appears to be off by a decimal point. The x,y,z components are hundreds of uT where it should be tens of uT.

## Frequently asked questions about Data Collection

### What is Data Collection's learning methodology?

Data Collection does not employ a specific learning methodology. It is a tool for capturing raw sensor data for research purposes.

### How does Data Collection track progress?

Data Collection does not track user progress in a learning context. Its function is to log sensor data for external analysis.

### Does Data Collection offer certifications?

No, Data Collection does not offer any certifications. It is a data capture utility for researchers.

### What is the price of Data Collection?

Data Collection is a paid app priced at $0.99.

### On which devices can I use Data Collection?

Data Collection is supported on iPhone and iPad devices.

### What is the age rating for Data Collection?

Data Collection has an age rating of 4+.

### How often is Data Collection updated?

The latest version is 1.16, and the app was last updated on September 7, 2025. This indicates a relatively active update schedule.

### What do users think of Data Collection?

User sentiment for Data Collection appears mixed, with an average rating of 2.9 stars from 9 ratings.

## Version history (last 5 releases)

### 1.16 — 2025-09-07

Update for iOS 18

### 1.15 — 2021-11-01

- Updated for iOS 15 and other behind-the-scenes things

### 1.14 — 2018-04-09

This app has been updated by Apple to display the Apple Watch app icon.

- This version fixes a bug related to accessing GPS information
- The output format is now a CSV where each sensor axis is a column

### 1.0.8 — 2017-08-15

Updates to support the following:
- Sub 1-Hz sampling
- 64-bit support

### 1.0.7 — 2013-11-30

- Updated for iOS 7

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*