# Global Timekeeper vs Momentous Clock

The clearest difference is ads: Momentous Clock at none against Global Timekeeper's shown. Momentous Clock also leads on update cadence (every 6 days vs every 6 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Global Timekeeper ships an update every 6 weeks, Momentous Clock every 6 days. The most recent releases landed on October 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Global Timekeeper | Momentous Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/momentous-clock/id1608715857/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | — | Free |
| Size | 6 MB | 24 MB |
| Requires iOS | **14.1** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Abhay Techno Services Pvt Ltd](https://appshunter.io/developer/1455812875) | [Tutukain Software, LLC](https://appshunter.io/developer/1608715859) |

## What reviewers say

### Global Timekeeper

[App page](https://appshunter.io/ios/app/global-timekeeper/id1562828945)

**Features:** macOS Compatibility

**In-app purchases:** none


### Momentous Clock

[App page](https://appshunter.io/ios/app/momentous-clock/id1608715857)

This app transforms your device's clock into a dynamic display of mathematical properties and number theory facts for the current time. It optionally reveals personal number connections from your contacts, all processed securely on your device.

**Highlights:** Computes mathematical properties of time, Surfaces number theory facts, Displays time on 16-segment LED screens, Finds personal number connections in contacts, On-device contact matching, Works via Catalyst on Mac

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Global Timekeeper free?

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

### Is Momentous Clock free?

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

### Do Global Timekeeper or Momentous Clock have ads?

Global Timekeeper shows ads; Momentous Clock does not.

### Which is updated more often, Global Timekeeper or Momentous Clock?

Global Timekeeper ships an update every 6 weeks, and Momentous Clock every 6 days. Most recently, Global Timekeeper was updated on October 6, 2026 and Momentous Clock on October 24, 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.*