# Emerald Chronometer vs TrueOffset

The clearest difference is update cadence: TrueOffset at every 3 weeks against Emerald Chronometer's every 22 months. Emerald Chronometer's advantage is iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Emerald Chronometer ships an update every 22 months, TrueOffset every 3 weeks. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Emerald Chronometer | TrueOffset |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (105 ratings)](https://appshunter.io/ios/app/emerald-chronometer/id284953670/reviews)** | — |
| Number of ratings | **105** | — |
| Positive reviews | 96.8% of reviews | — |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 22 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 311 MB | 2 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Scapa Flow, LLC](https://appshunter.io/developer/635350184) | [Richard Bollar](https://appshunter.io/developer/1864304955) |

## What reviewers say

### Emerald Chronometer

[App page](https://appshunter.io/ios/app/emerald-chronometer/id284953670)

Experience highly detailed mechanical watch faces with advanced astronomical and clock complications. Track celestial events, manage time with precision, and explore historical and future dates with interactive displays. Optimized for iPhone and iPod touch.

**Highlights:** Accurate astronomical data (4000 BCE - 2800 CE), Sun, Moon, and planet rise/set times, Mechanical display of Moon phases, Precise local and UTC time, Chronograph with split timer, World-time and calendar watches, Interactive time-travel simulation

**In-app purchases:** none


### TrueOffset

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Emerald Chronometer free?

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

### Is TrueOffset free?

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

### Which is updated more often, Emerald Chronometer or TrueOffset?

Emerald Chronometer ships an update every 22 months, and TrueOffset every 3 weeks. Most recently, Emerald Chronometer was updated on September 18, 2026 and TrueOffset on September 20, 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.*