Comparison

Device Motion Detective vs CoreMotion Data Recorder

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

Head to head
About

Device Motion Detective

This utility app captures and stores detailed device motion data, including accelerometer, gyroscope, and magnetometer readings. Users can view real-time motion graphs or past records saved to the database. Data is recorded every second for up to 20 minutes per session.

Highlights
  • Raw accelerometer data recording
  • Raw gyroscope data recording
  • Raw magnetometer data recording
  • Processed device-motion data
  • Real-time motion graphs
  • Past motion record viewing
  • Data saved to database
Features
Read full description

Detect the device motion detail information and save the information into the core data system. The user could view the past motion record from the data base system. The user could view the real time device motion list or the motion graph. The app can receive four types of motion: raw accelerometer data, raw gyroscope data, raw magnetometer data, and processed device-motion data (which includes accelerometer, rotation-rate, and attitude measurements). The current version could record the device motion data for 20 minutes when tap the record button once. After 20 minutes, the user could tap the record button again. During recording, the app will insert the motion data to the database every second. Only after recording the motion data, the feature of view record motion data will display the record information. In current edition, when the device shutdown, the database information will be cleared automatically. In short, the app may be useful to some engineering users or other users who need the detail device motion data. Best wishes.

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.

Screenshots

Device Motion Detective4 screens
CoreMotion Data Recorder4 screens

Verdict

The call

The clearest difference is review sentiment: CoreMotion Data Recorder at 100% against Device Motion Detective's 0%. CoreMotion Data Recorder also leads on rating (4.0 vs 1.0) and update cadence (every 2 months vs every 13 months). Device Motion Detective's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 14.0). On price, ratings volume, 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. Device Motion Detective asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CoreMotion Data Recorder holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 0% of Device Motion Detective's written reviews are positive against 100% of CoreMotion Data Recorder's.

UpkeepUpdate frequency

Device Motion Detective ships an update every 13 months, CoreMotion Data Recorder every 2 months. The most recent releases landed on October 7, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
Device Motion Detective versus CoreMotion Data Recorder: the parameters behind the verdict, then further details
ParameterDevice Motion DetectiveCoreMotion Data Recorder
PriceFreeFree
Rating1.0 (1 ratings)4.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 13 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS12.0 — better14.0
Further details — not scored
Size2 MB6 MB
Age rating4+4+
Developer方 沈一和 朱

Customer experience

Device Motion Detective

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CoreMotion Data Recorder

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

In-app purchases

None

Device Motion Detective

No in-app purchases

1 purchases

CoreMotion Data Recorder

One-time1
  • Advanced Mode$1.99

Questions

Is Device Motion Detective free?
Device Motion Detective is free to download, with no in-app purchases.
Is CoreMotion Data Recorder free?
CoreMotion Data Recorder is free to download, with in-app purchases available.
Which has better reviews, Device Motion Detective or CoreMotion Data Recorder?
CoreMotion Data Recorder is rated higher. Device Motion Detective averages 1.0 out of 5 from 1 ratings, while CoreMotion Data Recorder averages 4.0 from 1 ratings.
Do Device Motion Detective or CoreMotion Data Recorder have ads?
Neither Device Motion Detective nor CoreMotion Data Recorder shows ads.
Which is updated more often, Device Motion Detective or CoreMotion Data Recorder?
Device Motion Detective ships an update every 13 months, and CoreMotion Data Recorder every 2 months. Most recently, Device Motion Detective was updated on October 7, 2026 and CoreMotion Data Recorder on September 21, 2026.

Other comparisons