# Pentatronics 1000 vs Momentous Clock

The clearest difference is update cadence: Momentous Clock at every 6 days against Pentatronics 1000's fortnightly. Pentatronics 1000's advantage is iOS requirement (13.3 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Pentatronics 1000 against 5.0 for Momentous Clock. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Pentatronics 1000 ships an update fortnightly, Momentous Clock every 6 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | Pentatronics 1000 | Momentous Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/pentatronics-1000/id1506502614/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/momentous-clock/id1608715857/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | Free | Free |
| Size | 1 MB | 24 MB |
| Requires iOS | **13.3** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Novaes](https://appshunter.io/developer/597527233) | [Tutukain Software, LLC](https://appshunter.io/developer/1608715859) |

## What reviewers say

### Pentatronics 1000

[App page](https://appshunter.io/ios/app/pentatronics-1000/id1506502614)

Experience a faithful re-creation of a legendary gaming calculator from a bygone era. This app brings back the iconic "READY" message and the novelty of having a game on a calculator, blending math with fun, style, and humor.

**Highlights:** Faithful re-creation of a legendary gaming calculator, Iconic "READY" message, Calculator with built-in games, Emphasis on fun, style, and humor, Brings a rare collectible to mobile

**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 Pentatronics 1000 free?

Pentatronics 1000 is free to download, with no in-app purchases.

### Is Momentous Clock free?

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

### Which has better reviews, Pentatronics 1000 or Momentous Clock?

Pentatronics 1000 and Momentous Clock are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do Pentatronics 1000 or Momentous Clock have ads?

Neither Pentatronics 1000 nor Momentous Clock shows ads.

### Which is updated more often, Pentatronics 1000 or Momentous Clock?

Pentatronics 1000 ships an update fortnightly, and Momentous Clock every 6 days. Most recently, Pentatronics 1000 was updated on October 3, 2026 and Momentous Clock on October 3, 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.*