# Emerald Chronometer vs Lenseek Prime

The clearest difference is device support: Emerald Chronometer at 3 against Lenseek Prime's —. Lenseek Prime's advantage is iOS requirement (11.0 vs 15.0). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Emerald Chronometer | Lenseek Prime |
| --- | --- | --- |
| 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 |
| Update frequency | Every 22 months | — |
| Monetization | Paid | — |
| Size | 311 MB | 241 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Scapa Flow, LLC](https://appshunter.io/developer/635350184) | [LENSEEK PTE. LTD.](https://appshunter.io/developer/1867946315) |

## 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


### Lenseek Prime

[App page](https://appshunter.io/ios/app/lenseek-prime/id6757625770)

**In-app purchases:** none


## Frequently asked questions

### Is Emerald Chronometer free?

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

### Is Lenseek Prime free?

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

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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.*