Comparison

Motor Power Calculator vs Sensor Multitool

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

Head to head
About

Motor Power Calculator

Features
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The Motor Power Calculator application calculates the motor power by inputting the motor speed and the force generated by the motor. The power of the motor is calculated in seven units such as watt [W] and horsepower [PS], [HP]. Switch the two modes of the rotational motor and the linear motor at the top of the application screen. In ""ROTATIONAL MOTOR"" mode, input rotational speed and torque, and ""LINEAR MOTOR"" mode input speed and thrust(force).Units supported by this application are as follows. [Power] 7 kinds of [W], [PS], [HP], [kgf · m/s], [kcal/h], [Btu/h], [ft · lbf/s] - Rotational motor - [Rotational speed] 4 kinds of [rpm], [rps], [deg/s], [rad/s] [Torque] 9 kinds of [N · m], [cN · m], [mN · m], [kgf · m], [kgf · cm], [gf · cm], [lbf · ft], [lbf · in], [ozf · in] - Linear motor - [Speed] 2 types of [m/s] and [mm/s] [Thrust] 8 kinds of [N], [kN], [dyn], [kgf], [gf], [tf], [lbf], [pdl]

About

Sensor Multitool

Access real-time data from your device's built-in sensors, including accelerometer, gyroscope, magnetometer, altimeter, and compass. Choose from three sensitivity modes for raw, balanced, or smoothed data output. Ideal for makers, engineers, and hobbyists.

Highlights
  • Live sensor data dashboard
  • Accelerometer, Gyroscope, Magnetometer, Altimeter, Compass
  • Three sensitivity modes (Raw, Balanced, Smooth)
  • On-device data processing
  • Real-time motion, rotation, and magnetic field readings
  • Altitude and pressure measurements
Features
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Raw Sensor Multitool gives you instant, real-time access to the raw data streaming from your iPhone's built-in sensors — all in one clean dashboard. Designed for DIY makers, engineers, hobbyists, and anyone who wants to know exactly what their phone is measuring. SENSORS INCLUDED • Accelerometer — Live X, Y, Z forces in g. See gravity, tilt, and motion as raw values. Perfect for understanding how your phone moves in space. • Gyroscope — Real-time rotation rates on all three axes in rad/s. Ideal for robotics, motion tracking, and calibration projects. • Magnetometer — Raw magnetic field strength in microteslas (µT) on X, Y, Z. Detect nearby magnets, map field distortions, or calibrate compass-based projects. • Altimeter — Relative altitude change in meters and absolute barometric pressure in hPa. Zero the baseline at any time with the Reset button. • Compass — Magnetic and true heading in degrees, with a live compass rose and accuracy indicator. Instantly see if your magnetometer needs calibration. THREE SENSITIVITY MODES Tap Raw, Balanced, or Smooth at the top of the dashboard to control how data is filtered: • Raw — No filtering. Full precision. Every sensor update displayed as-is. Best for debugging and precision DIY work. • Balanced — Light smoothing with reduced decimal places. Clean and readable. The default mode. • Smooth — Heavy moving-average filter. Dramatically reduces noise. Best for steady observation and general use. DESIGNED FOR DIY PROJECTS Whether you're building a sensor logger, calibrating a magnetometer array, testing a motion-sensitive prototype, or just curious about your phone's hardware — Raw Sensor Multitool puts the data front and center, with no clutter. All sensor data is processed entirely on-device. Nothing is stored, logged, or transmitted.

Screenshots

Motor Power Calculator4 screens
Sensor Multitool2 screens

Verdict

The call

The clearest difference is price: Sensor Multitool at Free against Motor Power Calculator's $0.99. Sensor Multitool also leads on update cadence (every 3 weeks vs every 8 months). Motor Power Calculator's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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

Sensor Multitool is free to download; Motor Power Calculator costs $0.99 up front. Sensor Multitool sells 3 one-off in-app purchases. Motor Power Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Motor Power Calculator ships an update every 8 months, Sensor Multitool every 3 weeks. The most recent releases landed on October 12, 2026 and October 5, 2026 respectively.

Scorecard5 real differences · 4 level
Motor Power Calculator versus Sensor Multitool: the parameters behind the verdict, then further details
ParameterMotor Power CalculatorSensor Multitool
Price$0.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size0 MB5 MB
Age rating4+4+
DeveloperKei SuefujiAndrew Meyers

In-app purchases

None

Motor Power Calculator

No in-app purchases

3 purchases

Sensor Multitool

One-time3
  • Small Donation$0.99
  • Medium Donation$2.99
  • Large Donation$4.99

Questions

Is Motor Power Calculator free?
Motor Power Calculator costs $0.99, with no in-app purchases.
Is Sensor Multitool free?
Sensor Multitool is free to download, with in-app purchases available.
Do Motor Power Calculator or Sensor Multitool have ads?
Sensor Multitool shows ads; Motor Power Calculator does not.
Which is updated more often, Motor Power Calculator or Sensor Multitool?
Motor Power Calculator ships an update every 8 months, and Sensor Multitool every 3 weeks. Most recently, Motor Power Calculator was updated on October 12, 2026 and Sensor Multitool on October 5, 2026.

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