Comparison

Atomic Exact Time vs NTP Candle Timer

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

Head to head
About

Atomic Exact Time

This app precisely calibrates your device's clock against internet time sources, accounting for network delays. It offers a full-screen display with millisecond accuracy, detailed reports on clock deviation, and a precision alarm. Ideal for professionals and enthusiasts requiring exact timing.

Highlights
  • Millisecond accurate clock display
  • Device offset status
  • Network latency and drift reports
  • Precision alarm
  • Timecode and markers
  • Widgets
  • Multiple clock themes
Features
Read full description

See your device clock in context with Atomic Exact Time. Compare it with network time sources, view the measured offset and estimated uncertainty, and use a corrected clock display. Start with the free clock and synchronization tools. The free version includes ads. Optional Pro plans remove ads and unlock precision targets, team countdowns, detailed accuracy reports, Theme Studio, timecode and export tools. Prepare a start: choose an exact time or a duration, check calibration and notification permissions, and test the sound before starting. Save, edit, duplicate and reorder your frequent targets. Share a team target through a link or QR code. Each participant uses their own device calibration. Participant attendance and location are not tracked. Use world clocks, Studio Mode, accessibility preferences and a home-screen widget that shows the latest calibration. Choose from 15 interface languages. Timing accuracy depends on network conditions, device behavior and measurement quality. Uncertainty is an estimate, not a guarantee. Keep the app open for the best countdown timing. Background notification delivery depends on the operating system. Available Pro plans and localized prices are supplied by your store. Monthly and yearly subscriptions renew automatically until canceled in store account settings. A lifetime purchase is a single payment when offered. Restore Purchases is available. No app account is required. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

NTP Candle Timer

Read full description

A clear candle countdown beside your charts. NTP Candle Timer is a timing utility for stock, futures, forex and crypto traders. Watch the time remaining in a repeating interval without covering your trading platform. NETWORK-TIME SYNC The app periodically compares device time with network time and applies the measured offset to its display. The final 15 seconds show hundredths of a second. Actual accuracy can vary with the network, device and your trading platform's time source. The app does not change your device clock. YOUR INTERVAL, YOUR DISPLAY Choose 1, 3, 5, 15, 30 or 60 minutes. Use landscape or portrait orientation, select a font and color, and optionally show the battery indicator. AN OPTIONAL REFERENCE CLOCK Display Local, New York or UTC time below the countdown. New York follows daylight saving time automatically. This option is off by default and does not change the countdown or the timezone of your market alerts. VISUAL AND SOUND ALERTS Choose warning colors, final-seconds sounds and a session-end sound. Set market open and close reminders in your device's local time. Keep the app open during your session; it is not a background alarm service. The core timer and reference clock are free with banner advertising. An optional auto-renewable subscription removes banner ads and unlocks Pulse and Afterglow visual effects. The app interface supports English, Korean, Japanese, Spanish, Portuguese, German and French, following your device language preferences. Other languages fall back to English. NTP Candle Timer does not provide prices, trading signals, brokerage services or financial advice. Verify critical timing with your trading platform. Payment is charged to your Apple Account at purchase confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple Account settings. Privacy Policy: https://jddev-apps.web.app/ntp-candle-timer/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://jddev-apps.web.app/ntp-candle-timer/support

Screenshots

Atomic Exact Time4 screens
NTP Candle Timer4 screens

Verdict

The call

The clearest difference is update cadence: NTP Candle Timer at weekly against Atomic Exact Time's every 5 weeks. Atomic Exact Time's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement 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 Exact Time sells 3 in-app purchases, starting at $2.99 per month and NTP Candle Timer sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Atomic Exact Time ships an update every 5 weeks, NTP Candle Timer weekly. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Atomic Exact Time versus NTP Candle Timer: the parameters behind the verdict, then further details
ParameterAtomic Exact TimeNTP Candle Timer
PriceFreeFree
Rating4.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 weeksWeekly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac, Apple TV — betteriPhone, iPod
Requires iOS16.415.0 — better
Further details — not scored
Size56 MB44 MB
Age rating4+4+
DeveloperSUPER KIM KIMYA VE TEKSTIL SANAYI TICARET LIMITED SIRKETIDong Hyeon Ji

In-app purchases

3 purchases

Atomic Exact Time

Subscriptions2
  • Atomic Exact Time Pro7 Days trial$2.991 Month
  • Pro Yearly$19.991 Year
One-time1
  • Atomic Exact Time Pro$2.99
2 purchases

NTP Candle Timer

Subscriptions2
  • Premium - Monthly$0.991 Month
  • Premium - Yearly$7.991 Year

Questions

Is Atomic Exact Time free?
Atomic Exact Time is free to download, with in-app purchases available.
Is NTP Candle Timer free?
NTP Candle Timer is free to download, with in-app purchases available.
Do Atomic Exact Time or NTP Candle Timer have ads?
Both Atomic Exact Time and NTP Candle Timer show ads.
Which is updated more often, Atomic Exact Time or NTP Candle Timer?
Atomic Exact Time ships an update every 5 weeks, and NTP Candle Timer weekly. Most recently, Atomic Exact Time was updated on November 6, 2026 and NTP Candle Timer on October 31, 2026.

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