Comparison

Tempus World Clock vs Atomic Clock App

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

Head to head
About

Tempus World Clock

Easily track multiple time zones with customizable clocks for cities and people. Convert times instantly, find meeting windows, and set location-specific reminders. View city details including weather and sunrise/sunset.

Highlights
  • Customizable clocks with names, emojis, and color tags
  • Instant time conversion with a draggable scrubber
  • Meeting finder with overlapping availability windows
  • Location-specific reminders
  • City detail view with weather and daylight arc
  • Profile grouping for clocks
  • Lock screen and Dynamic Island integration
Features
Currently charting
Read full description

Tempus is a world clock and time zone converter built for people who work, travel, and stay in touch across time zones. It is at home on iPhone, iPad, and Apple Watch. NAME YOUR CLOCKS Add clocks for cities or for the people you talk to. Give each one a custom name, an emoji, and a color tag so "Mum in Sydney" or "Design team, Berlin" is readable at a glance. Choose emoji from a searchable catalog with recents and suggestions for the city. Pick analog or digital faces, 12 or 24 hour time, and see the time difference from wherever you are. CONVERT TIMES INSTANTLY Pick any time in any zone and see it in all your clocks at once. Drag the time scrubber to slide through the day and watch every clock move together. Day and night indicators follow the working hours you set for each city, so you can see at a glance who is reachable. PROFILES Group your clocks into profiles such as Work or Family and switch between them from the title on iPhone or the sidebar on iPad. A city can be in several profiles, and the active profile syncs to your other devices and Apple Watch. REMINDERS IN ANOTHER CITY'S TIME Set a reminder for 9:00 in Tokyo and Tempus alerts you when it is 9:00 there, whatever time it is where you are. Anchor a reminder to the city or to your own time, repeat it every day or on the weekdays you choose, or set it for a single date. Label it, pause it without deleting it, and turn alerts off on a device you would rather keep quiet. ON THE LOCK SCREEN Keep a reference city in the Dynamic Island and on the Lock Screen, with its current time and how far ahead or behind you it is. A countdown appears there before a reminder is due. FIND A MEETING TIME THAT WORKS Select two or more clocks, set working hours for each, and Tempus shows the overlapping windows where everyone is available. Add the meeting to your calendar in one tap or share it as an .ics invite. CITY DETAIL Tap any clock for a full city view: a skyline illustration that changes with the time of day, sunrise and sunset on a daylight arc, and current weather conditions. IPAD On iPad, Tempus uses a native split layout: browse your clocks in a sidebar while City Detail stays open beside them. Time Converter and Meeting Finder open in the detail column with room for a full-width overlap timeline. Keyboard shortcuts and pointer hover are supported throughout. APPLE WATCH Tempus on Apple Watch shows your clocks on your wrist, lets you convert times with the Digital Crown, and offers complications for your favorite clocks. Clocks sync instantly between iPhone and Apple Watch. WIDGETS A city widget shows one city drawn as its skyline, lit for the time of day, with an optional weekday and date. The World Clocks widget shows the cities you choose on the Home Screen or the Lock Screen. Your clocks sync across all your devices with iCloud. PRIVACY FIRST Tempus has no account, no ads, and no tracking. Your clocks are stored on your device and in your private iCloud database. Weather is provided by Apple Weather for the cities you add, never for your own location.

About

Atomic Clock App

Features
Read full description

Atomic Clock App — Precision Timepiece Experience time like never before. Atomic Clock App transforms your device into a refined, luxury-inspired timepiece with multiple stunning clock faces, powerful timers and a world clock — all designed with the elegance of a high-end watchmaker. BEAUTIFUL CLOCK FACES Choose from six meticulously crafted clock face styles: • Analog — A classic watch dial with elegant hands, tick marks and a smooth sweeping second hand • Digital — LED-style display with a soft glow effect for that retro-modern feel • Minimal — Clean typographic time display for a sleek, distraction-free look • Roman — Timeless Roman numeral clock face with refined detailing • Binary — A unique binary-encoded time display for the tech-savvy • Military — Precise 24-hour format inspired by tactical instruments Swipe between faces effortlessly or pick your favorite in settings. WORLD CLOCK Track time across the globe. Add cities from every timezone and see local times at a glance. Tap to switch between 12-hour and 24-hour formats instantly. Easily manage your cities with a simple delete option. STOPWATCH Accurate to the second with start, pause and reset controls. Record laps and scroll through your history — perfect for workouts, cooking or any timing need. COUNTDOWN TIMER Set precise countdowns with an animated circular progress ring. Pick hours, minutes and seconds, then watch the elegant ring animate down to zero. POMODORO TIMER Stay focused and productive with a built-in Pomodoro technique timer. Alternate between work sessions and breaks to maximize concentration and efficiency. ALARMS Create and manage multiple alarms with custom labels and repeat options for specific days of the week. Toggle alarms on and off with a tap. BEDTIME Set your ideal sleep and wake schedule. Track your sleep goals and build healthier routines with the dedicated bedtime feature. LUXURY DESIGN Every detail is crafted with care: • Deep matte black background inspired by luxury watch boxes • Six accent colors — Gold, Rose, Cyan, Emerald, Crimson and Silver — inspired by precious metals and gemstones • Subtle glow effects and smooth animations throughout • Dark card layouts with hairline borders for a refined, tactile feel • Frosted glass tab bar with fine icons CUSTOMIZATION Make it yours. Choose your preferred clock face, select an accent color that tints the entire app and switch between AM/PM and 24-hour formats with a single tap. Atomic Clock App is designed for anyone who appreciates precision, beauty and thoughtful design. Whether on your nightstand, your desk or in your pocket — time has never looked this good. Download Atomic Clock App and elevate every second.

Screenshots

Tempus World Clock4 screens
Atomic Clock App4 screens

Verdict

The call

The clearest difference is chart position: Tempus World Clock at #157 against Atomic Clock App's unranked. Tempus World Clock also leads on price ($1.99 vs $2.99). Atomic Clock App's advantage is iOS requirement (15.1 vs 17.0). On ads, in-app purchases 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

Tempus World Clock costs $1.99 and Atomic Clock App $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard3 real differences · 8 level
Tempus World Clock versus Atomic Clock App: the parameters behind the verdict, then further details
ParameterTempus World ClockAtomic Clock App
Price$1.99 — better$2.99
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#157 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size73 MB31 MB
Age rating4+4+
DeveloperViktor GamovGianfranco Antenucci

In-app purchases

None

Tempus World Clock

No in-app purchases

None

Atomic Clock App

No in-app purchases

Questions

Is Tempus World Clock free?
Tempus World Clock costs $1.99, with no in-app purchases.
Is Atomic Clock App free?
Atomic Clock App costs $2.99, with no in-app purchases.
Do Tempus World Clock or Atomic Clock App have ads?
Neither Tempus World Clock nor Atomic Clock App shows ads.

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