# Spacetime Clock vs Waterfall

The clearest difference is price: Spacetime Clock at Free against Waterfall's $0.99. Spacetime Clock also leads on update cadence (every 2 months vs every 4 months). Waterfall's advantage is rating (5.0 vs 2.8) and device support (5 vs 1). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Spacetime Clock is free to download; Waterfall costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Waterfall holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Spacetime Clock ships an update every 2 months, Waterfall every 4 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Spacetime Clock | Waterfall |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/spacetime-clock/id404558956/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/waterfall-clock/id1140157562/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 40.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 4 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [y-design](https://appshunter.io/developer/398188218) | [Kostakov Maxim](https://appshunter.io/developer/524964352) |

## What reviewers say

### Spacetime Clock

[App page](https://appshunter.io/ios/app/spacetime-clock/id404558956)

Explore celestial mechanics and terrestrial positioning with this app. Visualize moon phases, Earth's rotation, and your location's latitude and longitude. It also includes a compass and level meter for your device.

**Highlights:** Moon phases visualization, Earth rotation and revolution simulation, Latitude and longitude display, Compass functionality, iPhone level meter, Customizable background colors

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Waterfall

[App page](https://appshunter.io/ios/app/waterfall-clock/id1140157562)

This application displays the current time on your device screen, creating a unique visual effect by simulating a cascading waterfall of numbers. It offers a distinctive way to view the time with its innovative design.

**Highlights:** Waterfall number effect for time display, Simulates cascading numbers, Displays current device time, Unique visual interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spacetime Clock free?

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

### Is Waterfall free?

Waterfall costs $0.99, with no in-app purchases.

### Which has better reviews, Spacetime Clock or Waterfall?

Waterfall is rated higher. Spacetime Clock averages 2.8 out of 5 from 4 ratings, while Waterfall averages 5.0 from 2 ratings.

### Do Spacetime Clock or Waterfall have ads?

Neither Spacetime Clock nor Waterfall shows ads.

### Which is updated more often, Spacetime Clock or Waterfall?

Spacetime Clock ships an update every 2 months, and Waterfall every 4 months. Most recently, Spacetime Clock was updated on October 14, 2026 and Waterfall on October 7, 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.*