Comparison

Smart Tools Pro HD vs Date Calculator, Days Calc

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

Head to head
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!

About

Date Calculator, Days Calc

Easily solve date math problems with multiple calculation options. This intuitive app helps you find the difference between dates, add or subtract days, and calculate workdays. It's simple and user-friendly for all your date-related needs.

Highlights
  • Days Between Two Dates
  • Add to/Subtract from a Date
  • Workdays Calculator
  • Add/Subtract Workdays
  • Intuitive and Simple Interface
Features
Read full description

Date Calculator makes everyday date math simple and easy. - Calculate the time between two dates - Add or subtract years, months, weeks, and days - Count workdays between dates - Add or subtract workdays to find a date - Save and reuse your calculations Disclaimer: Results depend on your selected settings; please verify important dates and deadlines independently. If you have any questions or suggestions, please contact us at phannhatd@gmail.com.

Screenshots

Date Calculator, Days Calc4 screens

Verdict

The call

The clearest difference is review sentiment: Date Calculator, Days Calc at 60% against Smart Tools Pro HD's 0%. Date Calculator, Days Calc also leads on price (Free vs $0.99) and rating (4.5 vs 1.0). Smart Tools Pro HD's advantage is in-app purchases (none vs 1). On ads, 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

Date Calculator, Days Calc is free to download; Smart Tools Pro HD costs $0.99 up front. Date Calculator, Days Calc sells 1 one-off in-app purchase. Smart Tools Pro HD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Date Calculator, Days Calc holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: Date Calculator, Days Calc has 131 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Smart Tools Pro HD's written reviews are positive against 60% of Date Calculator, Days Calc's.

UpkeepUpdate frequency

Smart Tools Pro HD ships an update every 9 months, Date Calculator, Days Calc every 4 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Smart Tools Pro HD versus Date Calculator, Days Calc: the parameters behind the verdict, then further details
ParameterSmart Tools Pro HDDate Calculator, Days Calc
Price$0.99Free — better
Rating1.0 (1 ratings)4.5 (131 ratings) — better
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings1131 — better
Update frequencyEvery 9 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPadiPhone, iPad — better
Requires iOS17.016.0 — better
Further details — not scored
Size11 MB1 MB
Age rating4+4+
DeveloperShajir KaladyPhan Nhat Đang

Customer experience

Smart Tools Pro HD

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

Date Calculator, Days Calc

All ratings131 ratings
Positive84.7%
Neutral4.6%
Negative10.7%
Written reviews15 reviews
Positive60.0%
Neutral6.7%
Negative33.3%

In-app purchases

None

Smart Tools Pro HD

No in-app purchases

1 purchases

Date Calculator, Days Calc

One-time1
  • Unlock all features$3.99

Questions

Is Smart Tools Pro HD free?
Smart Tools Pro HD costs $0.99, with no in-app purchases.
Is Date Calculator, Days Calc free?
Date Calculator, Days Calc is free to download, with in-app purchases available.
Which has better reviews, Smart Tools Pro HD or Date Calculator, Days Calc?
Date Calculator, Days Calc is rated higher. Smart Tools Pro HD averages 1.0 out of 5 from 1 ratings, while Date Calculator, Days Calc averages 4.5 from 131 ratings.
Do Smart Tools Pro HD or Date Calculator, Days Calc have ads?
Neither Smart Tools Pro HD nor Date Calculator, Days Calc shows ads.
Which is updated more often, Smart Tools Pro HD or Date Calculator, Days Calc?
Smart Tools Pro HD ships an update every 9 months, and Date Calculator, Days Calc every 4 months. Most recently, Smart Tools Pro HD was updated on November 1, 2026 and Date Calculator, Days Calc on November 3, 2026.

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