Comparison

Mount Kelvin 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

Mount Kelvin

Features
Read full description

Be the master of the indoor ambience around you. Control all of the lights, temperature and AC. Create personalised lighting scenes for the whole room and activate them with one touch. Get accurate, real-time information of air quality, moisture, CO2 levels and set alarms for water leakages. The app also works as a configuration tool. Add new lights, battery-free wireless switches and other devices. REQUIREMENTS In order to use the Mount Kelvin app, you need a Mount Kelvin bridge.

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

Mount Kelvin3 screens
Motion Sensor Analyzer Tool4 screens

Verdict

The call

The clearest difference is in-app purchases: Mount Kelvin at none against Motion Sensor Analyzer Tool's 3. Mount Kelvin also leads on iOS requirement (9.0 vs 18.0). On price, update cadence, 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. Motion Sensor Analyzer Tool sells 3 in-app purchases, starting at $2.99 per month. Mount Kelvin asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 11, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 7 level
Mount Kelvin versus Motion Sensor Analyzer Tool: the parameters behind the verdict, then further details
ParameterMount KelvinMotion Sensor Analyzer Tool
PriceFreeFree
Rating—3.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 weeksEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better18.0
Further details — not scored
Size11 MB12 MB
Age rating4+4+
DeveloperMired HillThiem Nguyen

In-app purchases

None

Mount Kelvin

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 Mount Kelvin free?
Mount Kelvin 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 Mount Kelvin or Motion Sensor Analyzer Tool have ads?
Neither Mount Kelvin nor Motion Sensor Analyzer Tool shows ads.
Which is updated more often, Mount Kelvin or Motion Sensor Analyzer Tool?
Mount Kelvin ships an update every 2 weeks, and Motion Sensor Analyzer Tool every 2 weeks. Most recently, Mount Kelvin was updated on September 11, 2026 and Motion Sensor Analyzer Tool on September 21, 2026.

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