Comparison

Atomic Clock App vs Clock Stamp

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

Head to head
About

Atomic Clock App

Features
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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.

About

Clock Stamp

This app displays multiple city time zones on a single, elegant clock face. It provides visual context for day, night, and weather in each location, aiding in travel planning and international communication.

Highlights
  • Multiple city time zones
  • Visual analog world clock
  • Local time difference display
  • Weather and day/night context
  • 12-hour and 24-hour modes
  • Light and dark appearance
Features
Read full description

Clock Stamp makes world time easy to read. See the time in several cities at once on one elegant dial, and check time differences, whether it's day or night, and the local weather at a glance. • Dial: every city sits on the dial, so time differences and daylight are clear at a glance • City search: search Apple Maps for cities and towns worldwide, and add as many as you like • Local Time: follows your location, or uses your phone's time zone • Weather: local weather at a glance, with backgrounds and weather effects that follow each city's time and weather • iPhone Duo: controls within reach of your thumb on both displays, and a live map of Earth showing day and night when it's open • 12/24-hour dial, Light/Dark appearance, Celsius/Fahrenheit, two text sizes • Six languages: English, 简体中文, Français, Italiano, 日本語, 한국어 • Supports VoiceOver and Reduce Motion Made for working across borders, remote meetings, planning trips, studying abroad, and keeping in touch with friends and family in other time zones.

Screenshots

Atomic Clock App4 screens
Clock Stamp4 screens

Verdict

The call

The clearest difference is price: Clock Stamp at Free against Atomic Clock App's $2.99. Atomic Clock App's advantage is iOS requirement (15.1 vs 26.2). 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

Clock Stamp is free to download; Atomic Clock App costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 7 level
Atomic Clock App versus Clock Stamp: the parameters behind the verdict, then further details
ParameterAtomic Clock AppClock Stamp
Price$2.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 2 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better26.2
Further details — not scored
Size31 MB4 MB
Age rating4+4+
DeveloperGianfranco AntenucciZhicheng Chen

In-app purchases

None

Atomic Clock App

No in-app purchases

None

Clock Stamp

No in-app purchases

Questions

Is Atomic Clock App free?
Atomic Clock App costs $2.99, with no in-app purchases.
Is Clock Stamp free?
Clock Stamp is free to download, with no in-app purchases.
Do Atomic Clock App or Clock Stamp have ads?
Neither Atomic Clock App nor Clock Stamp shows ads.

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