Comparison

CoreMotion Data Recorder vs HemiPhysioData

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

Head to head
About

CoreMotion Data Recorder

This utility app helps developers collect and visualize motion data from Apple Watch and iPhone. Recorded data syncs to the iPhone for analysis via line charts. It supports file sharing for easy data export and analysis.

Highlights
  • Collect CoreMotion data from Apple Watch/iPhone
  • Synchronize data to iPhone
  • Visualize data with line charts
  • Support AirDrop and file sharing
  • Access accelerometer, gyroscope, pedometer, magnetometer, altimeter, barometer data
Features
Read full description

This app could help developers to obtain the Core Motion data from the paired Apple Watch or from iPhone. Recorded data will be automatically synchronized to the iPhone. Users can view the recorded motion data directly on the iPhone in the form of line chart. Furthermore it also supports AirDrop and other forms of file sharing facility, making it easy for developers to obtain and analyze the Core Motion data. Core Motion reports motion and environment related data from the onboard hardware of watchOS device, including from the accelerometers and gyroscopes, and from the pedometer, magnetometer, altimeter and barometer.

About

HemiPhysioData

This app collects raw and processed sensor data from your Apple Watch, including accelerometer and gyroscope readings. It allows you to select activities, preferences, and then exports the data as a CSV file to your iPhone for analysis. Ideal for tracking movement and Range of Motion (ROM) measurements.

Highlights
  • Collects raw and processed sensor data
  • User-friendly activity selection
  • Exports data as CSV files
  • Supports accelerometer and gyroscope
  • Configurable sampling rate
  • Haptic feedback for logging alerts
Read full description

HemiPhysioData serves as an Apple Watch app designed to gather both raw and processed data from the watch's built-in sensors, such as the accelerometer and gyroscope. Its user-friendly interface allows users to effortlessly select different activities and preferences. The collected sensor data, along with additional specified values, is then neatly stored in a CSV file. These CSV files can be easily transferred to the user's iPhone for further processing and analysis. The app is specifically tailored for individuals seeking to collect movement data or Range of Motion (ROM) measurements, with the added benefit of utilizing the data for analytics and machine learning. Users have the flexibility to choose the activity type, movement type, sampling rate (samples per second), and indicate which wrist they wear the watch on, as well as whether it's their dominant or non-dominant side. Some details on screenshots: UID: Predefined twenty users (U01-U20) Activity: Movements (upper limb), Walking, Running, Misc Move Type: It corresponds to the selected activity Interval-Hertz: Samples per second (up to 100 samples per second) Dominant Side: Enable it when watch is on wrist of dominant arm Right Wrist: Enable it when watch is on right wrist Haptic-Feedback: When enabled, the user can set the ‘Starts In’ time and the logging ‘Duration'. The user gets the alert when the logging starts (when the starts-in time finishes) and ends (when the duration finishes). Use this option to log activity related data only. It saves from data cleaning later. Logged Files: Shows all saved CSV files on watch. The user can select a file to send to the iPhone or delete from watch. The following sensor data of the Apple Watch (WatchOS) is saved in the CSV file: - Device Motion Processed Data: roll, pitch, yaw, rotation rate x, rotation rate y, rotation rate z, gravity x, gravity y, gravity z, user acceleration x, user acceleration y, user acceleration z, quaternion x, quaternion y, quaternion z, quaternion z. -Accelerometer Raw Data: Acceleration x, y, and z

Screenshots

CoreMotion Data Recorder4 screens
HemiPhysioData3 screens

Verdict

The call

The clearest difference is in-app purchases: HemiPhysioData at none against CoreMotion Data Recorder's 1. CoreMotion Data Recorder's advantage is update cadence (every 2 months vs every 18 months). On price, review sentiment, ads and device support 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. CoreMotion Data Recorder sells 1 one-off in-app purchase. HemiPhysioData asks for nothing beyond the download.

UpkeepUpdate frequency

CoreMotion Data Recorder ships an update every 2 months, HemiPhysioData every 18 months. The most recent releases landed on June 11, 2026 and June 4, 2026 respectively.

Scorecard3 real differences · 7 level
CoreMotion Data Recorder versus HemiPhysioData: the parameters behind the verdict, then further details
ParameterCoreMotion Data RecorderHemiPhysioData
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 18 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPod, Apple WatchiPhone, iPod, Apple Watch
Requires iOS14.013.2 — better
Further details — not scored
Size6 MB2 MB
Age rating4+4+
Developer一和 朱Moez ur Rehman

Customer experience

CoreMotion Data Recorder

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

HemiPhysioData

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

CoreMotion Data Recorder

One-time1
  • Advanced Mode$1.99
None

HemiPhysioData

No in-app purchases

Questions

Is CoreMotion Data Recorder free?
CoreMotion Data Recorder is free to download, with in-app purchases available.
Is HemiPhysioData free?
HemiPhysioData is free to download, with no in-app purchases.
Do CoreMotion Data Recorder or HemiPhysioData have ads?
Neither CoreMotion Data Recorder nor HemiPhysioData shows ads.
Which is updated more often, CoreMotion Data Recorder or HemiPhysioData?
CoreMotion Data Recorder ships an update every 2 months, and HemiPhysioData every 18 months. Most recently, CoreMotion Data Recorder was updated on June 11, 2026 and HemiPhysioData on June 4, 2026.

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