# M vs Momentous Clock

The clearest difference is update cadence: Momentous Clock at every 6 days against M's every 2 months. M's advantage is iOS requirement (9.0 vs 15.1). On price, ads, 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.

M ships an update every 2 months, Momentous Clock every 6 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | M | 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 | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 24 MB | 24 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Seabiscuit Software BV](https://appshunter.io/developer/973402968) | [Tutukain Software, LLC](https://appshunter.io/developer/1608715859) |

## What reviewers say

### M

[App page](https://appshunter.io/ios/app/m-staff/id1282495635)

**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 M free?

M 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 M or Momentous Clock have ads?

Neither M nor Momentous Clock shows ads.

### Which is updated more often, M or Momentous Clock?

M ships an update every 2 months, and Momentous Clock every 6 days. Most recently, M was updated on October 26, 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.*