Comparison

Sensor Data Recorder vs Watch Sensor Logger

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Watch Sensor Logger

Log detailed motion and GPS data from your Apple Watch. Export sensor readings like acceleration, attitude, and location as a CSV file for analysis. This app is exclusively designed for Apple Watch.

Highlights
  • Log sensor data
  • GPS tracking
  • Export to CSV
  • Acceleration logging
  • Attitude data
  • Time stamping
Features
Read full description

Watch Sensor Logger turns your Apple Watch into a powerful motion and location logger. Record high-precision sensor data straight from your wrist: • Acceleration • Rotation Rate • Gravity • Attitude • GPS location Start a recording on your Apple Watch, then review your sessions on your iPhone. Every measurement is visualized with clear charts so you can spot patterns at a glance, and you can export any session as a CSV file for analysis in your favorite tools. Perfect for researchers, developers, athletes, and anyone curious about the motion of everyday life. KEY FEATURES • One-tap recording on Apple Watch • Motion sensors: acceleration, rotation rate, gravity, attitude • GPS location logging • Beautiful charts to explore your data • CSV export for spreadsheets and analysis • Manage and delete past sessions easily

Screenshots

Sensor Data Recorder2 screens
Watch Sensor Logger4 screens

Verdict

The call

The clearest difference is ads: Sensor Data Recorder at none against Watch Sensor Logger's shown. Sensor Data Recorder also leads on iOS requirement (14.0 vs 17.0). On price, review sentiment, update cadence and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Sensor Data Recorder ships an update every 26 months, Watch Sensor Logger every 25 months. The most recent releases landed on September 27, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
Sensor Data Recorder versus Watch Sensor Logger: the parameters behind the verdict, then further details
ParameterSensor Data RecorderWatch Sensor Logger
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews50.0% of reviews50.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 26 monthsEvery 25 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS14.0 — better17.0
Further details — not scored
Size8 MB17 MB
Age rating4+4+
DeveloperNils Ackermannyuya kanbetsunawa

Customer experience

Sensor Data Recorder

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Watch Sensor Logger

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

None

Sensor Data Recorder

No in-app purchases

None

Watch Sensor Logger

No in-app purchases

Questions

Is Sensor Data Recorder free?
Sensor Data Recorder is free to download, with no in-app purchases.
Is Watch Sensor Logger free?
Watch Sensor Logger is free to download, with no in-app purchases.
Do Sensor Data Recorder or Watch Sensor Logger have ads?
Watch Sensor Logger shows ads; Sensor Data Recorder does not.
Which is updated more often, Sensor Data Recorder or Watch Sensor Logger?
Sensor Data Recorder ships an update every 26 months, and Watch Sensor Logger every 25 months. Most recently, Sensor Data Recorder was updated on September 27, 2026 and Watch Sensor Logger on October 1, 2026.

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