Sensor Data Recorder vs Acc.elerometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensor Data Recorder
This utility app records gyroscope, accelerometer, and audio data from your device. Export your recorded data as CSV or M4A files for further processing, particularly for machine learning applications. Your data remains private and is only accessible on your device.
- Record gyroscope and accelerometer data
- Record audio simultaneously
- Label recordings for ML workflow
- Adjust data capture frequency
- Download or email data
- Export as CSV and M4A
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A lightweight utility in order to quickly and securely record CoreMotion gyroscope and accelerometer data together with audio data. CoreMotion data can be downloaded as a CSV (comma separated values) file and audio can be downloaded as a standard m4a file. Your data is only available on your device. Data will not be shared with others and will not be uploaded centrally. Data can then be used for further processing, mostly for machine learning (ML) / deep learning purposes. Key highlights: - Record gyroscope and accelerometer data directly from your phone's CoreMotion module - In parallel, record audio from your phone's microphone - Assign a label to each recording which can be later used in your machine learning workflow - Choose the frequency of the data to be captured per second - Download the captured data or send it via email - Further process the data within your favorite machine learning environment, e.g. using Python
Acc.elerometer
Visualize and record device motion with live sensor readings. Analyze acceleration, rotation, magnetic field, and attitude. Export data as CSV for further analysis.
- Live sensor readings
- Record experiments
- Analyze results on iPhone/iPad
- Capture motion on Apple Watch
- Export data as CSV
- Six measurement types
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See how your device moves with Acc.elerometer. View live sensor readings, record an experiment and examine the results on your iPhone or iPad. Capture motion on Apple Watch and send recordings to your paired iPhone for charts and CSV export. EXPLORE SIX MEASUREMENTS - Acceleration, including gravity, in G - User acceleration, with gravity removed, in G - Rotation rate around three axes in rad/s - Magnetic field in microteslas - Device attitude: roll, pitch and yaw in radians - Gravity along each axis in G View individual axes and vector magnitude where supported. Follow changing values and review recorded measurements to explore movement, rotation and orientation. RECORD AND REVIEW Choose the measurements you want to capture, then start and stop a recording. On iPhone and iPad, set the measurement interval from 0.1 to 1 second. Open saved recordings to inspect charts, switch between individual axes and vector magnitude for supported measurements, and identify gaps in the data. EXPORT YOUR DATA Export each measurement from a recording as a CSV file with timestamps and axis values. Choose Unix time, spreadsheet serial dates or formatted date strings for your analysis workflow. CAPTURE MOTION ON APPLE WATCH View sensor readings and record selected measurements on your wrist. Send saved recordings to the paired iPhone and follow transfer progress. Add watch face complications to see saved sensor maxima or recording status, and open the app to start a recording from the recording widget. FOR EXPERIMENTS AND EVERYDAY CURIOSITY Explore device motion for a physics demonstration, a development project or your own experiments. Measurements and recordings are stored on your devices. No account is required. Available readings and actual sampling intervals depend on the device and its sensors. Apple Watch recording duration is subject to watchOS background runtime limits. Watch complications show saved values from the app, rather than a continuous live sensor feed.
Screenshots
Verdict
The clearest difference is review sentiment: Acc.elerometer at 100% against Sensor Data Recorder's 50%. Acc.elerometer also leads on rating (5.0 vs 2.3) and update cadence (every 11 months vs every 26 months). Sensor Data Recorder's advantage is ratings volume (3 vs 1) and iOS requirement (14.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Acc.elerometer holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 50% of Sensor Data Recorder's written reviews are positive against 100% of Acc.elerometer's.
Sensor Data Recorder ships an update every 26 months, Acc.elerometer every 11 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.
| Parameter | Sensor Data Recorder | Acc.elerometer |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 26 months | Every 11 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 14.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 8 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Nils Ackermann | Pantiukhin Andrei |
Customer experience
Sensor Data Recorder
Acc.elerometer
In-app purchases
Sensor Data Recorder
No in-app purchases
Acc.elerometer
No in-app purchases
Questions
Is Sensor Data Recorder free?
Is Acc.elerometer free?
Which has better reviews, Sensor Data Recorder or Acc.elerometer?
Do Sensor Data Recorder or Acc.elerometer have ads?
Which is updated more often, Sensor Data Recorder or Acc.elerometer?
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