Comparison

Watch Sensor Logger vs Motion Sensor Analyzer Tool

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

Head to head
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

About

Motion Sensor Analyzer Tool

This app transforms your iPhone into a professional motion data logger. Record accelerometer, gyroscope, and magnetometer data simultaneously, visualize it with interactive charts, and export it in CSV or JSON format for detailed analysis. Organize and compare recordings to gain insights into motion patterns.

Highlights
  • Record accelerometer, gyroscope, magnetometer
  • Up to 200Hz sampling rate
  • Interactive real-time charts
  • Export data as CSV and JSON
  • Organize recordings with sessions and collections
  • Compare multiple recordings
  • Background recording (Pro feature)
Features
Read full description

RECORD. ANALYZE. EXPORT. Motion Sensor turns your iPhone into a professional-grade motion data logger - perfect for research, sports science, engineering, and data analysis. - CORE FEATURES - 3 Sensors in One Record accelerometer, gyroscope, and magnetometer simultaneously with a single tap. Up to 200Hz Sampling Capture high-frequency motion data with sampling rates up to 200Hz (device-dependent). Visual Charts Interactive real-time charts with X, Y, Z axis and magnitude overlay. Zoom, scroll, and analyze. Export CSV and JSON Share your data with any tool - Excel, MATLAB, Python, R, or custom analysis pipelines. Organize Your Data Name sessions, add tags, write notes, and group recordings into Collections for easy retrieval. Compare Sessions Overlay two recordings side-by-side or on the same chart to spot differences instantly. - PRO FEATURES - Unlimited Recordings Free tier includes 5 recordings. Upgrade to Pro for unlimited sessions. Background Recording Keep recording even when your screen is off or you switch apps. Live Activity and Dynamic Island See real-time sensor data on your Lock Screen while recording. Custom Presets Create and save your own sampling configurations for any activity. - PERFECT FOR - Researchers and academics collecting motion data Sports scientists analyzing movement patterns Engineers testing vibration and impact Developers building motion-aware apps Students learning about sensor data - PRIVACY - No account required. All data stored locally on your device. No data is collected or transmitted. Works on iPhone, iPad, and Mac (Apple Silicon). No special permissions required - just open and record. Privacy Policy: https://sweltering-wombat-fb2.notion.site/Privacy-Policy-for-Motion-Sensor-352458630f5480d5a16ddcbcaaa9daac Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Watch Sensor Logger4 screens
Motion Sensor Analyzer Tool4 screens

Verdict

The call

The clearest difference is in-app purchases: Watch Sensor Logger at none against Motion Sensor Analyzer Tool's 3. Motion Sensor Analyzer Tool's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 25 months). On price, monetization model, device support and iOS requirement 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. Motion Sensor Analyzer Tool sells 3 in-app purchases, starting at $2.99 per month. Watch Sensor Logger asks for nothing beyond the download.

UpkeepUpdate frequency

Watch Sensor Logger ships an update every 25 months, Motion Sensor Analyzer Tool every 2 weeks. The most recent releases landed on August 8, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Watch Sensor Logger versus Motion Sensor Analyzer Tool: the parameters behind the verdict, then further details
ParameterWatch Sensor LoggerMotion Sensor Analyzer Tool
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings—2 — better
Update frequencyEvery 25 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size17 MB12 MB
Age rating4+4+
Developeryuya kanbetsunawaThiem Nguyen

Customer experience

Watch Sensor Logger

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

Motion Sensor Analyzer Tool

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Watch Sensor Logger

No in-app purchases

3 purchases

Motion Sensor Analyzer Tool

Subscriptions2
  • Motion Sensor Pro – Monthly$2.991 Month
  • Motion Sensor Pro – Yearly$19.991 Year
One-time1
  • Motion Sensor Pro – Lifetime$9.99

Questions

Is Watch Sensor Logger free?
Watch Sensor Logger is free to download, with no in-app purchases.
Is Motion Sensor Analyzer Tool free?
Motion Sensor Analyzer Tool is free to download, with in-app purchases available.
Do Watch Sensor Logger or Motion Sensor Analyzer Tool have ads?
Watch Sensor Logger shows ads; Motion Sensor Analyzer Tool does not.
Which is updated more often, Watch Sensor Logger or Motion Sensor Analyzer Tool?
Watch Sensor Logger ships an update every 25 months, and Motion Sensor Analyzer Tool every 2 weeks. Most recently, Watch Sensor Logger was updated on August 8, 2026 and Motion Sensor Analyzer Tool on September 21, 2026.

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