# TrueOffset vs Atomic Exact Time

The clearest difference is rating: TrueOffset at 5.0 against Atomic Exact Time's 4.0. TrueOffset also leads on in-app purchases (none vs 3) and ads (none vs shown). On price, device support 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. TrueOffset asks for nothing beyond the download.

TrueOffset holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: TrueOffset has 9 ratings behind it against 1, so its average is the more settled of the two.

TrueOffset ships an update fortnightly, Atomic Exact Time every 5 weeks. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | TrueOffset | Atomic Exact Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/trueoffset/id6757518499/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/atomic-exact-time/id6797418012/reviews) |
| Number of ratings | **9** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 56 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | iPhone, iPad, Apple TV | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Richard Bollar](https://appshunter.io/developer/1864304955) | [SUPER KIM KIMYA VE TEKSTIL SANAYI TICARET LIMITED SIRKETI](https://appshunter.io/developer/1896542696) |

## What reviewers say

### TrueOffset

[App page](https://appshunter.io/ios/app/trueoffset/id6757518499)

This app precisely measures your device's clock accuracy against global time servers. It offers multiple clock faces, time scales, and audible time signals, including radio time codes. Analyze time source quality with detailed charts and compare IPv4/IPv6 responses.

**Highlights:** NTP server comparison, Multiple clock faces (analog, digital, NTP offset), UTC & TAI time scales, Audible time signals and radio time codes, Dual-stack IPv4/IPv6 comparison, Flexible time source selection, Quality analytics charts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is TrueOffset free?

TrueOffset is free to download, with no in-app purchases.

### Is Atomic Exact Time free?

Atomic Exact Time is free to download, with in-app purchases available.

### Which has better reviews, TrueOffset or Atomic Exact Time?

TrueOffset is rated higher. TrueOffset averages 5.0 out of 5 from 9 ratings, while Atomic Exact Time averages 4.0 from 1 ratings.

### Do TrueOffset or Atomic Exact Time have ads?

Atomic Exact Time shows ads; TrueOffset does not.

### Which is updated more often, TrueOffset or Atomic Exact Time?

TrueOffset ships an update fortnightly, and Atomic Exact Time every 5 weeks. Most recently, TrueOffset was updated on November 5, 2026 and Atomic Exact Time on November 6, 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.*