Comparison

Sensors vs Smart Tools Pro HD

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

Head to head
About

Sensors

Access all your device's built-in sensor data in one place. View readings for acceleration, compass, pressure, location, and more. It also retrieves location names and elevation from external databases and local weather information.

Highlights
  • View all device sensor values
  • Supports acceleration, compass, pressure, location
  • Retrieves location name and elevation
  • Fetches local outdoor temperature and air pressure
  • Switch between imperial and metric units
  • Option to hide unavailable sensors
  • Supports iPad multitasking
Features
Read full description

See the values of the built in device sensors all together in one app. Supports (if available) acceleration, heading (compass), pressure, position, altitude and speed. In addition it gets the current location name and the elevation from the GeoNames database and the local outdoor temperature and air pressure from World Weather Online via the internet. More features: - switch between imperial and metric units - optionally hide non available sensors - support for the iPad multitasking (split view..)

About

Smart Tools Pro HD

This app transforms your iPad into a comprehensive toolkit with over 30 measurement and utility functions. It offers tools like rulers, protractors, speedometers, flashlights, and QR code scanners, catering to various professional and personal needs.

Highlights
  • Ruler and protractor for precise measurements
  • AR-based distance and height measurement
  • Real-time speedometer with HUD mode
  • Flashlight with adjustable brightness
  • Digital compass with GPS integration
  • QR code scanner and generator
  • Spirit level with surface and edge modes
Features
Read full description

**Smart Tools Pro - Your Complete iOS Toolkit** Transform your iPad into a professional measurement and utility toolkit with Smart Tools Pro. Whether you're a DIY enthusiast, professional contractor, photographer, or just need quick access to essential tools, Smart Tools Pro has everything you need in one beautifully designed app - 30 powerful tools at your fingertips! MEASURING TOOLS (8) * Ruler - Measure objects with precision using your screen or camera. Perfect for quick measurements when you don't have a physical ruler. * Protractor - Measure angles accurately for DIY projects, construction, or educational purposes. Real-time angle display with degree precision. * Slope - Calculate slope angles and percentages. Essential for construction, landscaping, and accessibility compliance. * Distance - Measure distances using AR technology. Point your camera and get instant distance measurements for room planning. * Height - Measure heights of objects using your iPad's sensors and AR. Perfect for measuring buildings, trees, or furniture. * Speedometer - Track your speed in real-time with GPS. HUD mode for windshield reflection. Max speed and distance tracking. * Plumb Bob - Check vertical alignment with a virtual plumb bob. Essential for construction and hanging fixtures. * Angle Finder - Measure angles using camera-based angle detection. Draw and compare multiple angles. UTILITY TOOLS (20) * Magnifier - Magnify small text or objects with zoom control and flash support. Perfect for reading fine print and inspecting details. * Flashlight - Powerful LED flashlight with adjustable brightness and strobe modes. Never be in the dark again. * Compass - Navigate with confidence using the built-in digital compass. Shows direction, coordinates, altitude, and magnetic field strength. * GPS - Track your location with precision. View latitude, longitude, altitude, speed, and accuracy. Save favorite locations. * Audio - Advanced audio analyzer with frequency spectrum, waveform visualization, and real-time audio monitoring. * Seismograph - Detect and monitor vibrations and movements. Track seismic activity and record shake events. * QR-Code - Scan and generate QR codes. Create custom QR codes for URLs, text, contacts, and more. * Level - Turn your iPad into a professional spirit level with bubble display. Surface and edge modes with calibration. * Mag Flux - Measure magnetic field strength in microteslas. Detect magnetic objects and monitor field variations. * Reader - Text-to-speech reader for PDFs and images. OCR technology extracts text from photos. Adjustable reading speed. * Color Picker - Pick colors from your camera in real-time. Save color palettes with hex, RGB, and HSB values. * Barometer - Monitor atmospheric pressure. Track weather changes with pressure trends and altitude compensation. * Random Generator - Generate random numbers, flip coins, roll dice, and create secure passwords. Perfect for games and decisions. * Lux Meter - Measure light intensity in lux. Professional light measurement for photography and workspace optimization. * Stud Finder - Detect metal studs and magnetic objects in walls using your iPad's magnetometer. Essential for hanging fixtures. * Sun Tracker - Track sun position throughout the day. Plan photography sessions and solar panel installations with sunrise/sunset times. * Decibel Logger - Measure and log sound levels. Monitor noise pollution and track daily noise exposure with detailed history. * Frequency Analyzer - Analyze audio frequencies in real-time. Spectrum analyzer with harmonic detection for musicians and audio professionals. TIME TOOLS (2) * Stop Watch - Precision stopwatch with volume button control for races and workouts. Record multiple laps with highest/lowest indicators. * Timer - Countdown timer with volume button control for hands-free operation. Download Smart Tools Pro today and discover 30 professional tools in one beautifully designed app!

Screenshots

Sensors4 screens

Verdict

The call

The clearest difference is rating: Sensors at 2.0 against Smart Tools Pro HD's 1.0. Sensors also leads on review sentiment (33% vs 0%) and device support (3 vs 1). Smart Tools Pro HD's advantage is update cadence (every 9 months vs every 21 months) and price ($0.99 vs $1.99). On ads, in-app purchases and monetization model 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

Sensors costs $1.99 and Smart Tools Pro HD $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sensors holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 33% of Sensors's written reviews are positive against 0% of Smart Tools Pro HD's.

UpkeepUpdate frequency

Sensors ships an update every 21 months, Smart Tools Pro HD every 9 months. The most recent releases landed on June 5, 2026 and June 3, 2026 respectively.

Scorecard7 real differences · 3 level
Sensors versus Smart Tools Pro HD: the parameters behind the verdict, then further details
ParameterSensorsSmart Tools Pro HD
Price$1.99$0.99 — better
Rating2.0 (3 ratings) — better1.0 (1 ratings)
Positive reviews33.3% of reviews — better0.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 21 monthsEvery 9 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS12.0 — better17.0
Further details — not scored
Size3 MB11 MB
Age rating4+4+
DeveloperPiet JonasShajir Kalady

Customer experience

Sensors

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Smart Tools Pro HD

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

In-app purchases

None

Sensors

No in-app purchases

None

Smart Tools Pro HD

No in-app purchases

Questions

Is Sensors free?
Sensors costs $1.99, with no in-app purchases.
Is Smart Tools Pro HD free?
Smart Tools Pro HD costs $0.99, with no in-app purchases.
Which has better reviews, Sensors or Smart Tools Pro HD?
Sensors is rated higher. Sensors averages 2.0 out of 5 from 3 ratings, while Smart Tools Pro HD averages 1.0 from 1 ratings.
Do Sensors or Smart Tools Pro HD have ads?
Neither Sensors nor Smart Tools Pro HD shows ads.
Which is updated more often, Sensors or Smart Tools Pro HD?
Sensors ships an update every 21 months, and Smart Tools Pro HD every 9 months. Most recently, Sensors was updated on June 5, 2026 and Smart Tools Pro HD on June 3, 2026.

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