Motion Log Plus vs ETPhone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Motion Log Plus
This tool captures and visualizes motion data from your iOS device, including orientation, attitude, and acceleration. You can preview recordings in 3D and export log files for further analysis.
- Capture device orientation, attitude, and acceleration
- Preview motion data in 3D
- Rename and delete log files
- Export motion log files
- Turn off screen while recording
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Motion Log is a device sensor logging tool that empowers you to capture the motion of your iOS Devices. It records various data points, including device attitude, orientation, and applied force. After recording, you can conveniently preview the motion data. Embark on a journey of motion exploration with Motion Log, a cutting-edge device sensor logging tool designed for iOS devices. Whether you're tracking the subtle nuances of device orientation, analyzing acceleration patterns, or documenting the dynamic forces at play, Motion Log offers unparalleled insight into the motion dynamics of your device. With its intuitive interface and robust feature set, Motion Log empowers users to record, visualize, and analyze motion data with ease. From everyday activities to adventurous endeavors, Motion Log provides a comprehensive toolkit for understanding and harnessing the power of motion. Experience motion logging like never before and unlock a world of possibilities with Motion Log. Features: • Capture motion data of your iOS Devices, including: - Device orientation to North. - Device Attitude: Pitch, Roll, and Yaw. - Device Acceleration in X, Y, and Z directions. - Time and Date of recording start. • Option to turn off the screen while recording. • Rename or delete motion log files. • Preview recorded motion data in 3D. • View 3D device preview at normal speed, 2X speed, or 0.5X speed. • Toggle data preview On or Off. 3D Preview: • Display device orientation in 3D space. • Represent device acceleration with 3D arrows (X - Red, Y - Green, Z - Blue). • Arrow size adjusts based on acceleration magnitude. Motion Log Files: • Access motion log files in the [Files] app under [Motion Log] Folder. • Open motion log files using a normal text editor. • Data array includes compass (0-360 degrees), attitude (Pitch, Roll, and Yaw in radians), and device acceleration (X, Y, Z in G - Gravity). • Recorded with a 0.05 sec interval. • Share motion log files via Airdrop, Messages, or Mail. • Easily load shared motion log files by placing them into [Motion Log] Folder via [Files] app. Usage: • Record walking or running motions. • Capture desk vibrations or other movements. • Analyze G force while riding roller coasters. • Assess road conditions or G force while driving. • Monitor attitude or G force while biking or cycling. • Explore endless possibilities based on your imagination. Thank you for your support, and feel free to visit nitrio.com for more iOS device apps.
ETPhone
This application enables real-time gaze computation and recording for eye tracking data collection using a compatible wearable device. It offers control over camera settings, participant calibration, and data recording to an SD card. Collected data can be easily transferred for detailed analysis on a PC.
- Real-time gaze computation
- Gaze data recording
- Camera gain and quality control
- Participant calibration
- SD card recording control
- Data download for PC analysis
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Argus Science is pleased to release the latest version of the ETPhone App for use with the Argus Science ETVision wearable eye tracker. This Release builds upon the original ETPhone App by adding real-time gaze computation and recording directly on your iOS Phone or Tablet, allowing increased flexibility and control for eye tracking data collection. With this latest ETPhone Release you may name files, control gain and quality of the ETVision cameras, calibrate participants, record gaze data and control recording to an SD card inserted in the ETVision controller. After data is collected, it is easy to download the gaze data to a PC with Argus Science’s ETAnalysis program which allows the researcher to perform typical gaze analysis functions such as Fixation definition, Pupillometry and blink criteria as well as automated area of interest creation to name a few.
Screenshots
Verdict
The clearest difference is price: ETPhone at Free against Motion Log Plus's $2.99. ETPhone also leads on rating (3.0 vs 1.0) and ratings volume (6 vs 1). Motion Log Plus's advantage is iOS requirement (13.1 vs 16). On update cadence, ads, in-app purchases 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
ETPhone is free to download; Motion Log Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ETPhone holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: ETPhone has 6 ratings behind it against 1, so its average is the more settled of the two.
Motion Log Plus ships an update every 22 months, ETPhone every 16 months. The most recent releases landed on October 5, 2026 and September 24, 2026 respectively.
| Parameter | Motion Log Plus | ETPhone |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 1.0 (1 ratings) | 3.0 (6 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 22 months | Every 16 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.1 — better | 16 |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Heng Jia Liang | Argus Science, LLC |
Customer experience
Motion Log Plus
ETPhone
In-app purchases
Motion Log Plus
No in-app purchases
ETPhone
No in-app purchases
Questions
Is Motion Log Plus free?
Is ETPhone free?
Which has better reviews, Motion Log Plus or ETPhone?
Do Motion Log Plus or ETPhone have ads?
Which is updated more often, Motion Log Plus or ETPhone?
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