Comparison

Atomic Clock App vs Unichrono

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

Head to head
About

Atomic Clock App

Features
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Atomic Clock App โ€” 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 โ€” all designed with the elegance of a high-end watchmaker. BEAUTIFUL CLOCK FACES Choose from six meticulously crafted clock face styles: โ€ข Analog โ€” A classic watch dial with elegant hands, tick marks and a smooth sweeping second hand โ€ข Digital โ€” LED-style display with a soft glow effect for that retro-modern feel โ€ข Minimal โ€” Clean typographic time display for a sleek, distraction-free look โ€ข Roman โ€” Timeless Roman numeral clock face with refined detailing โ€ข Binary โ€” A unique binary-encoded time display for the tech-savvy โ€ข Military โ€” 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 โ€” 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: โ€ข Deep matte black background inspired by luxury watch boxes โ€ข Six accent colors โ€” Gold, Rose, Cyan, Emerald, Crimson and Silver โ€” inspired by precious metals and gemstones โ€ข Subtle glow effects and smooth animations throughout โ€ข Dark card layouts with hairline borders for a refined, tactile feel โ€ข 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 โ€” time has never looked this good. Download Atomic Clock App and elevate every second.

About

Unichrono

Features
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It's 9 in the morning where you are. Is it too early to call your mother? Is your team in Berlin still at their desks? Will anyone in Tokyo read this tonight? And what time will it be in Lisbon when you land? Unichrono answers all three from your Home Screen, without you opening anything. PUT THEIR TIME WHERE YOU ALREADY LOOK Add the cities your people are in, then place a widget. One city, big enough to read across a room. Four cities in a row. Eight in a grid. A clock face. Your Lock Screen too, in every shape Apple allows. Every widget is yours to set up: which cities it holds, 12 or 24 hour, which theme, and what the second line says. KNOW BEFORE YOU SEND IT Each city carries the shape of its own day, so you can see it instead of working it out. A wash of colour for morning, afternoon, evening and night. Yesterday or Tomorrow when the date has already turned over there. Sunrise and sunset. And a dot for each city โ€” green while they are inside their own working hours, amber at the edges, red when you would be waking them up. WORK OUT THE TIME BEFORE YOU GO Add the city you are flying to and it sits beside home, with the offset spelled out, so the gap is a fact rather than arithmetic you do at the gate. Drag the ruler to your landing hour and see what everyone back home will be doing when you touch down, and whether that is a reasonable time to text. Sunrise and sunset tell you what daylight you are arriving into. Once you are there, your own row moves with you and the people you left behind stay where they are. PLAN WITHOUT THE ARITHMETIC Drag the ruler along the bottom of the screen and every clock moves together, so you can find the hour that works for all of you before you propose it. Jump to a date months out and see what it looks like there. Once you have found it, set an alarm for their morning, drop the meeting into your calendar, or copy an invite that reads correctly in every zone. Unichrono can also say a city's time out loud, at an hour you pick. 6,312 cities are built in, from capitals down to small towns. Search happens on your phone; nothing is fetched. IT NEVER ASKS YOU FOR ANYTHING No account. No sign-in. No ads. No analytics. No tracking. Switch on Airplane mode and every clock in this app keeps telling the truth, because not one of them was ever asking a server. Unichrono has no backend to send your data to, because it does not need one โ€” the time zone rules ship inside the app. WHAT IT COSTS Free, and staying free: 3 cities, the World Clock widget in every size, Hero City, Lock Screen widgets, time travel, the plan board, themes, and the full city search. Unichrono Pro is one payment of USD 2.99. It is not a subscription and never becomes one. Pro adds unlimited cities; every other widget โ€” Two Cities, Three Cities in a day-wash or rings style, Analog, Sun Clock and Availability; the denser grid layout; extra widget detail lines, such as how long until they close; spoken city alerts; the hourly or daily time announcer; and the plan board's alarm, calendar and invite actions. Launch gift: until 31 December, all of that is free. Open the app, tap Claim, and it stays unlocked on your iPhone. No account, no subscription, nothing to renew.

Screenshots

Atomic Clock App4 screens
Unichrono4 screens

Verdict

The call

The clearest difference is price: Unichrono at Free against Atomic Clock App's $2.99. Unichrono also leads on device support (4 vs 2). Atomic Clock App's advantage is in-app purchases (none vs 1) and iOS requirement (15.1 vs 17.0). On ads there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Unichrono is free to download; Atomic Clock App costs $2.99 up front. Unichrono sells 1 one-off in-app purchase. Atomic Clock App asks for nothing beyond the download.

Scorecard4 real differences ยท 2 level
Atomic Clock App versus Unichrono: the parameters behind the verdict, then further details
ParameterAtomic Clock AppUnichrono
Price$2.99Free โ€” better
Update frequencyโ€”Every 5 days
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad, Mac, Apple Watch โ€” better
Requires iOS15.1 โ€” better17.0
Further details โ€” not scored
Size31 MB34 MB
Age rating4+4+
DeveloperGianfranco AntenucciAbhilash Emmanuel

In-app purchases

None

Atomic Clock App

No in-app purchases

1 purchases

Unichrono

One-time1
  • Unichrono: World Clock Widget$2.99

Questions

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

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