Comparison

Toolbox PRO vs World Time Clock Master

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

Head to head
About

Toolbox PRO

Transform your device into a versatile measuring toolkit. It offers a comprehensive suite of 13+ tools including a barometer, altimeter, compass, metronome, stopwatch, timer, and various levels for diverse applications.

Highlights
  • Barometer for atmospheric pressure
  • Altimeter for elevation above sea level
  • Compass for navigation
  • Metronome for musicians
  • Stopwatch with lap and split modes
  • Multiple timers running simultaneously
  • Surface and spirit levels
Features
Read full description

The most handy measuring tool kit in the world. Turning your iPhone or iPad into a multi functional measuring device with: metronome, stopwatch, timer, seismometer, ruler, surface level and many more. Currently, there are 13 measuring tools + Flashlight in the tool box: - BAROMETER It gives you a nice and clear local atmospheric pressure, obtained from the barometric sensor in your device - ALTIMETER This tool takes advantage of the built in GPS to give you the precise elevation above the sea level. - COMPASS A pretty and well-made compass for navigation, traveling and direction reference purposes. - TESLAMETER It takes advantage of the built-in magnetometer in your iPhone/iPod touch, allows you to monitor the strength of magnetic field all around. There are a range of real-life applications for this useful item, such as: metal detector, AC magnetic fields, or finding low-magnetic places for sleeping - METRONOME It is the most precise and stable metronome on the app store. Whether you are a musician, a music teacher, a beginner at playing music or even a golfer, this tool provides you a set of powerful features that can satisfy all your needs. - STOPWATCH Whenever you need a precise and professional stopwatch for sport activities like: sprints, jogging, this tool is a must have. Among its features are: intuitive interface, lap and split modes support, or send log results to your email - TIMER There are unlimited applications of using timer in daily life, such as: egg timer, tea timer, cooking, alarm clock, etc. The timer tool satisfies all of those needs by many of its features: up to 5 timers running simultaneously, count down and count up support, intuitive and convenient duration setup using preset and gestures - SEISMOMETER Taking advantage of the built-in accelerometer in your iPhone, this tool detects and visualizes any vibrations and moves of the iPhone. So, why not using this excellent feature to help your iPhone self-protected like a car when combined with an alarm? Or another great application is to test how smooth the car is on a test drive - PLUMB BOB This is an instrument to check if an object is perfectly vertical/plumb and has been used since the time of the ancient Egyptians. It suits any types of your needs, such as: hanging objects, carpenter work, brick layer or building construction - SURFACE LEVEL This tool facilitates the measurement of the slope of whatever surface you want to check. Most importantly, its accuracy is ensured at the maximum level by the support to different sensitivities that allow you to detect subtle slopes (floor leveling, furniture arrangement,..) - SPIRIT/BUBBLE LEVEL It is a simple but extremely useful tool in the set to check if an object is balanced. Its applications range from entertained purposes such as checking pool billiard tables in the bar to serious usages like constructions, carpenter, etc - RULER The ruler helps you precisely know the lengths of objects all around you, such as pens, tables, pictures. We built it to become even more than just a normal ruler: longest distance measuring capability, and up to 6 units support - PROTRACTOR Have you ever forgotten your protractor at school or when you urgently look for a protractor to measure any kind of angles in real life?

About

World Time Clock Master

Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.

Highlights
  • Multiple time zone display
  • Interactive time conversion
  • Event scheduling
  • Atomic time accuracy
  • Dynamic home screen widgets
  • List mode for text view
  • Real moon phases and sunrise/sunset
Features
Read full description

THE EASIEST WAY TO DEAL WITH MULTIPLE TIMEZONES + INTERACTIVE WIDGETS Sick of screwing up meeting times and missing calls? This app cuts through time-zone confusion and hands you the perfect hour at a glance. Forget guesswork — just click, connect, and impress. KEY FEATURES EVENT SCHEDULING MADE EASY Found the perfect meeting time? Add events to your calendar with just a tap, and never miss an international webinar, call, or special moment again. ATOMIC ACCURACY No drift, no guesswork. Each second syncs with the atomic standard, so you can trust every moment. Extensive Time Zone Database: Tap into over 160,000 locations and time zones including GMT, UTC, and more. UNIFIED CLOCK FACE View all your essential time zones at a glance on one beautifully designed, customizable clock face. Whether you prefer digital or analog displays (or even military time), everything is exactly where you need it. INTERACTIVE TIME CONVERSION Convert times instantly by simply twisting or swiping across the clock face. Watch as your selected time zones update in real time—making planning international calls, meetings, or travel effortless. DYNAMIC WIDGETS Access global times without even opening the app. Our interactive home screen widget lets you drag a simple line to reveal and convert times, ensuring you’re always in sync no matter where you are. LIST MODE Get a clean, text-based view of all your cities in one column. See times and dates at a glance, and scroll to check future or past hours. It’s a no-fuss way to track the world’s clocks. FEELS LIKE A LUXURY TIMEPIECE We poured effort into details most people never notice — and we’re okay with that. Our users aren’t “most people.” Details include: — Real Moon Phases — Real Moon Rotation — Real Sunrise & Sunset — Advanced City Lights — Haptic Feedback * * * World Clock Master offers a premium subscription: Subscribe to get access to unlimited timezones, interactive widgets, customizations, and timely automatic updates of our timezone database of more than 160,000 locations and timezones. – Length of subscription: 1 month or 1 year – Payment will be charged to iTunes Account at confirmation of purchase – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal – Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable – Terms & Conditions: https://timemaster.s3.amazonaws.com/Time-master-terms.pdf

Screenshots

Toolbox PRO4 screens
World Time Clock Master4 screens

Verdict

The call

The clearest difference is price: World Time Clock Master at Free against Toolbox PRO's $3.99. Toolbox PRO's advantage is in-app purchases (none vs 13) and ratings volume (3.5K vs 816). On rating, review sentiment, update cadence and ads 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

World Time Clock Master is free to download; Toolbox PRO costs $3.99 up front. World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month. Toolbox PRO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Toolbox PRO against 4.6 for World Time Clock Master. Both are backed by a comparable volume of ratings — 3.5K and 816 respectively. Written reviews are what separate them: 62% of Toolbox PRO's written reviews are positive against 66% of World Time Clock Master's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
Toolbox PRO versus World Time Clock Master: the parameters behind the verdict, then further details
ParameterToolbox PROWorld Time Clock Master
Price$3.99Free — better
Rating4.5 (3.5K ratings)4.6 (816 ratings) — better
Positive reviews61.7% of reviews65.8% of reviews — better
Number of ratings3.5K — better816
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, Vision Pro
Requires iOS8.0 — better17.0
Further details — not scored
Size27 MB236 MB
Age rating4+4+
DeveloperSkyPaw Co., LimitedAlex Komarov Inc.

Customer experience

Toolbox PRO

All ratings3,524 ratings
Positive88.3%
Neutral3.9%
Negative7.8%
Written reviews823 reviews
Positive61.7%
Neutral7.9%
Negative30.4%

World Time Clock Master

All ratings816 ratings
Positive90.8%
Neutral2.8%
Negative6.4%
Written reviews76 reviews
Positive65.8%
Neutral5.3%
Negative28.9%

User reviews

Toolbox PRO

From 3.5K App Store ratings

What we love

  • 🚀 Useful tools in one app
  • 👍 Intuitive interface
  • 🔧 Variety of measurement tools
  • ⚙️ Accurate measurements
  • 💡 Innovative features

Room to improve

  • 🐛 Crashes and compatibility issues
  • 🔍 Inaccurate measurements
  • 🔒 Privacy concerns with location access
  • 💰 Paid features removed from previous versions
  • 📚 Lack of instructions or guidance

World Time Clock Master

From 816 App Store ratings

What we love

  • 🚀 Delightful scheduling assistance
  • 👍 Feature improvement
  • 👍 The best Timezone helper
  • 👍 One of the best clocks around
  • 👍 The Widget is so damn cool!

Room to improve

  • 🐛 Problemas al actualizar
  • 🐛 Sticky signup interface
  • 🐛 Demo not enough
  • 🔒 NOT A FREE APP
  • 💰 Terrible monetisation model compared to previous app

Bugs and requests

Toolbox PRO

Reported bugs

4 issues
  • Decibel meter missing from current version
  • Ruler measurements inaccurate on newer devices
  • Crashing issues with recent updates
  • Barometer and altimeter not functioning properly

Requested features

5 requests
  • Temperature conversion tool
  • Light meter
  • Ability to calibrate tools
  • Apple Watch app integration
  • More customization options

World Time Clock Master

Reported bugs

4 issues
  • Lose all the registered locations after updating the app
  • Sticky signup interface
  • Widget doesn't work
  • GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time

Requested features

4 requests
  • Add the time difference in hours between the default location and other locations in both the widget and the app
  • See my calendar events on the dial
  • Make a paid tier that doesn't collect my data
  • Add new event to a Calendar

In-app purchases

None

Toolbox PRO

No in-app purchases

10 purchases

World Time Clock Master

Subscriptions6
  • 1 month3 variants$2.991 Month
  • 3 months$3.993 Months
  • 1 year1 Year trial2 variants$11.991 Year
Show 3 more
  • 1 year3 Days trial$11.991 Year
  • 1 year$11.991 Year
  • 1 year3 Days trial$19.991 Year
One-time4
  • Lifetime$29.99
  • Lifetime$49.99
  • Lifetime$79.99
Show 1 more
  • Lifetime$99.99

Questions

Is Toolbox PRO free?
Toolbox PRO costs $3.99, with no in-app purchases.
Is World Time Clock Master free?
World Time Clock Master is free to download, with in-app purchases available.
Which has better reviews, Toolbox PRO or World Time Clock Master?
World Time Clock Master is rated higher. Toolbox PRO averages 4.5 out of 5 from 3.5K ratings, while World Time Clock Master averages 4.6 from 816 ratings.
Do Toolbox PRO or World Time Clock Master have ads?
Neither Toolbox PRO nor World Time Clock Master shows ads.
Which is updated more often, Toolbox PRO or World Time Clock Master?
Toolbox PRO ships an update fortnightly, and World Time Clock Master fortnightly. Most recently, Toolbox PRO was updated on October 20, 2026 and World Time Clock Master on October 17, 2026.

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