Comparison

Sim Flights Tracker 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

Sim Flights Tracker

Track live aircraft on the Vatsim and Ivao networks. View detailed flight information, network statistics, and an interactive map showing aircraft positions in real-time.

Highlights
  • Live aircraft tracking
  • Vatsim and Ivao network data
  • Flight information display
  • Network flight statistics
  • Custom interactive map
Features
Read full description

Sim Flights Tracker is an app that tracks aircraft that are live on the Vatsim and Ivao network. With this app you can see flight information, number of flights on the Vatsim and Ivao network, and a lot of other flight related data. There is also a custom map that shows exactly where the aircraft are at any given time in their flight.

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

Sim Flights Tracker4 screens
World Time Clock Master4 screens

Verdict

The call

The clearest difference is in-app purchases: Sim Flights Tracker at none against World Time Clock Master's 13. Sim Flights Tracker also leads on rating (5.0 vs 4.6) and iOS requirement (14.0 vs 17.0). World Time Clock Master's advantage is ads (none vs shown) and ratings volume (816 vs 3). On price 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. World Time Clock Master sells 10 in-app purchases, starting at $2.99 per month. Sim Flights Tracker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sim Flights Tracker holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: World Time Clock Master has 816 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Sim Flights Tracker ships an update every 2 months, World Time Clock Master fortnightly. The most recent releases landed on June 5, 2026 and September 25, 2026 respectively.

Scorecard7 real differences · 3 level
Sim Flights Tracker versus World Time Clock Master: the parameters behind the verdict, then further details
ParameterSim Flights TrackerWorld Time Clock Master
PriceFreeFree
Rating5.0 (3 ratings) — better4.6 (816 ratings)
Positive reviews—65.8% of reviews
Number of ratings3816 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, Vision Pro
Requires iOS14.0 — better17.0
Further details — not scored
Size106 MB236 MB
Age rating4+4+
DeveloperDonald SepengAlex Komarov Inc.

Customer experience

Sim Flights Tracker

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

World Time Clock Master

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

Bugs and requests

Sim Flights Tracker

Not enough reviews yet to summarise bugs or requests.

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

Sim Flights Tracker

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 Sim Flights Tracker free?
Sim Flights Tracker is free to download, 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, Sim Flights Tracker or World Time Clock Master?
Sim Flights Tracker is rated higher. Sim Flights Tracker averages 5.0 out of 5 from 3 ratings, while World Time Clock Master averages 4.6 from 816 ratings.
Do Sim Flights Tracker or World Time Clock Master have ads?
Sim Flights Tracker shows ads; World Time Clock Master does not.
Which is updated more often, Sim Flights Tracker or World Time Clock Master?
Sim Flights Tracker ships an update every 2 months, and World Time Clock Master fortnightly. Most recently, Sim Flights Tracker was updated on June 5, 2026 and World Time Clock Master on September 25, 2026.

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