Smooth Clock Lite vs Momentous Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smooth Clock Lite
Transform your device into a visually appealing clock with dynamic, animated backgrounds. Customize your display with day/night modes, various color palettes, and adjustable animation speeds. Supports both 12 and 24-hour time formats.
- Smoothly animated backgrounds
- Day and night mode toggle
- Choice of 3 animations
- Rainbow, random, or gray color animations
- Adjustable animation speeds
- 12/24 hour format support
Read full descriptionHide full description
Turn your device into a clock with a smoothly animated background. Features: - toggle between day and night mode - choose from 3 different animations - animate random, rainbow or gray colors - 3 different animation speeds - supports the 12 and 24 hour format - support for the iPhone 6 and 6+
Momentous Clock
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.
- 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
Read full descriptionHide full description
Time isn’t just 6:31. It’s 631 - a prime! A lucky prime... It’s the combination to the bike lock you had as a kid. It might be the last digits of the cell phone of someone you love. This is a clock for people who notice things like that. Every minute, it: • Computes mathematical properties of the current time • Surfaces number theory facts (prime, factorization, powers, sequences, curiosities) • Scrambles them onto glowing 16-segment LED displays, like your old Speak 'n Spell • Optionally finds personal number connections in your contacts — entirely on device Works great as a Mac app via Catalyst. Contact matching happens entirely on device. No personal data is ever transmitted. Usage analytics (anonymous) are collected to improve the app. If you’ve ever factored timestamps in your head, smiled at 5:12 = 2⁹, or paused at 17:29… This is the clock for you. Make every minute momentous.
Screenshots
Verdict
The clearest difference is in-app purchases: Momentous Clock at none against Smooth Clock Lite's 1. Momentous Clock also leads on update cadence (every 6 days vs every 10 months). Smooth Clock Lite's advantage is iOS requirement (6.0 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Smooth Clock Lite sells 1 one-off in-app purchase. Momentous Clock asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Smooth Clock Lite against 5.0 for Momentous Clock. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Smooth Clock Lite ships an update every 10 months, Momentous Clock every 6 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.
| Parameter | Smooth Clock Lite | Momentous Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 10 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 1 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Tutukain Software, LLC |
Customer experience
Smooth Clock Lite
Momentous Clock
In-app purchases
Smooth Clock Lite
- Smooth Clock Upgrade$0.99
Momentous Clock
No in-app purchases
Questions
Is Smooth Clock Lite free?
Is Momentous Clock free?
Which has better reviews, Smooth Clock Lite or Momentous Clock?
Do Smooth Clock Lite or Momentous Clock have ads?
Which is updated more often, Smooth Clock Lite or Momentous Clock?
Other comparisons
