Comparison

Atomic Clock vs 2 Clocks

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

Head to head
About

Atomic Clock

This utility provides highly accurate time synchronization using NTP, displaying precise time with millisecond detail. It allows comparison with network time, shows sync offset and latency, and offers various clock styles with customization options. It's designed for users needing a reliable, precise reference clock.

Highlights
  • NTP-based time synchronization
  • Millisecond time detail
  • Local time and UTC display
  • Device offset and network latency indicators
  • Automatic sync
  • Multiple clock styles
  • Customizable colors and night mode
Features
Read full description

Atomic Clock – Precision Time is a professional precision clock and NTP time synchronization utility for anyone who needs highly accurate time directly on their device. Use reliable network time synchronization to view precise time with millisecond-level detail. Compare your device clock with network time, check sync offset and latency, switch between local time and UTC, and keep the screen on when you need a stable reference clock. Key features: • NTP-based time synchronization • Millisecond or 1/60-second detail • Local time and UTC display • Device offset and network latency indicators • Automatic sync with configurable intervals • Six clock styles: circular dots, analog, minimalist, binary, neon glow, and flip clock • Custom accent colors and multi-color display • Night mode and keep-screen-on option • Privacy-focused: no account, no analytics, no tracking Atomic Clock – Precision Time is built for precise timing, clock drift checks, latency awareness, and a clean daily precision clock. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

2 Clocks

Features
Read full description

A beautiful fullscreen clock, for the way you actually use one. 2 Clocks turns your iPhone or iPad into a calm, oversized clock face — analog or digital, with a smoothly sweeping second hand. Set it on your desk, your nightstand, or your kitchen counter. Rotate to landscape for a wide tabletop look, or keep it upright. The time is always glanceable, always exact. FIFTEEN CAREFULLY CRAFTED CLOCK FACES Swipe between fifteen distinct designs — each one tuned for clarity at a glance and quiet enough to sit in the background. Analog faces include: • Modern Arabic with orange accents on 12, 3, 6, 9 • Classic Roman numerals with a red second hand • Elegant gold-on-black with slim hands • Apple-style minimal with the day of the year on the dial Digital faces include: • Word clock — "IT IS TWELVE THIRTY-FOUR MINUTES AND FIFTY-SIX SECONDS IN THE AFTERNOON" • LCD-style with day-of-week, AM/PM and alarm tags • Matrix terminal in glowing green with date readout • Flip-clock with vertical split panels • Bold seven-segment with HRS / MIN / SEC labels LIGHT & DARK MODE A single tap in the corner switches the whole app between light and dark. Dark mode is true black on OLED iPhones — perfect for a nightstand. TWO-TIMEZONE WIDGETS Pin 2 Clocks to your Home Screen and never miss a call across time zones. • Small widget — one clock, one timezone. Choose any city, set a custom label ("Local", "Home", "Office"), and pick analog or digital. • Medium widget — two clocks side by side, each with its own timezone, label and analog/digital style. Watch "Local" and "New York" at a glance, or any pair you like. Every widget updates with the system and respects light/dark. CUSTOMIZE FROM SETTINGS Tap the gear and configure each widget independently: • Clock 1 (small and medium) — Label, Timezone, Analog or Digital • Clock 2 (medium only) — Label, Timezone, Analog or Digital PORTRAIT OR LANDSCAPE 2 Clocks looks great on iPhone in your hand, on iPad on a desk stand, or rotated wide on a kitchen counter. Every face scales fluidly to the screen — there are no awkward letterboxes. REMOVE ADS WITH A SINGLE TAP 2 Clocks is free with ads. Don't feel like an ad right now? Tap "Watch ad — 8 hours ad-free" inside Settings and enjoy a clean clock face for the rest of the day. 2 CLOCKS PRO — $2.99, ONCE One simple upgrade: • Remove all ads forever — no banners, no rewarded ads, ever • Unlock all 15 clock designs — every analog and digital face, including Pro-only styles • One-time purchase — no subscription. Pay once, keep forever.

Screenshots

Atomic Clock4 screens
2 Clocks4 screens

Verdict

The call

The clearest difference is ads: Atomic Clock at none against 2 Clocks's shown. 2 Clocks's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price and in-app purchases 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. Atomic Clock sells 2 in-app purchases, starting at $5.99 per month and 2 Clocks sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard3 real differences · 7 level
Atomic Clock versus 2 Clocks: the parameters behind the verdict, then further details
ParameterAtomic Clock2 Clocks
PriceFreeFree
Rating4.8 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 6 weeks—
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size9 MB7 MB
Age rating4+4+
Developer家宝 戴Chaleepa Mallawa

In-app purchases

2 purchases

Atomic Clock

Subscriptions2
  • AtomicClock Pro Monthly7 Days trial$5.991 Month
  • AtomicClock Pro Monthly7 Days trial$19.991 Year
1 purchases

2 Clocks

One-time1
  • 2 Clocks Pro$2.99

Questions

Is Atomic Clock free?
Atomic Clock is free to download, with in-app purchases available.
Is 2 Clocks free?
2 Clocks is free to download, with in-app purchases available.
Do Atomic Clock or 2 Clocks have ads?
2 Clocks shows ads; Atomic Clock does not.

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