# Atomic Exact Time vs NTP Candle Timer

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.

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.

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.

## The numbers

| Metric | Atomic Exact Time | NTP Candle Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/atomic-exact-time/id6797418012/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 44 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SUPER KIM KIMYA VE TEKSTIL SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1896542696) | [Dong Hyeon Ji](https://appshunter.io/developer/6799770577) |

## What reviewers say

### Atomic Exact Time

[App page](https://appshunter.io/ios/app/atomic-exact-time/id6797418012)

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:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atomic Exact Time Pro | $2.99 | per month |
| Pro Yearly | $19.99 | per year |
| Atomic Exact Time Pro | $2.99 | one-time |


### NTP Candle Timer

[App page](https://appshunter.io/ios/app/ntp-candle-timer/id6799770575)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $0.99 | per month |
| Premium - Yearly | $7.99 | per year |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*