# Time Machine vs Sun Moon Day

The clearest difference is rating: Time Machine at 4.5 against Sun Moon Day's 2.0. Time Machine also leads on ratings volume (11 vs 1). Sun Moon Day's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Time Machine sells 2 in-app purchases, starting at $0.49 per month. Sun Moon Day asks for nothing beyond the download.

Time Machine holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: Time Machine has 11 ratings behind it against 1, so its average is the more settled of the two.

Time Machine ships an update fortnightly, Sun Moon Day weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Time Machine | Sun Moon Day |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/time-machine-life-clock/id1502507360/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/sun-moon-day/id6759829846/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 71 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [红升 孙](https://appshunter.io/developer/1502418960) | [Joseph Orr](https://appshunter.io/developer/1844012659) |

## What reviewers say

### Time Machine

[App page](https://appshunter.io/ios/app/time-machine-life-clock/id1502507360)

Visualize your life's timeline and track important dates. This app helps you see how much time has passed, count down to future events, and preserve memories with photos and messages. It also allows you to create time capsules for your future self.

**Highlights:** Visualize time lived, Track week, month, and year progress, Countdown to future events, Save memories with photos and text, Create time capsules for future self

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 时间机器1月高级会员 | $0.49 | per month |
| 时间机器1年高级会员 | $5.99 | per year |


### Sun Moon Day

[App page](https://appshunter.io/ios/app/sun-moon-day/id6759829846)

Visualize your place in the day and year with real-time sun and seasonal clocks. See sunrise, sunset, moon phases, and even weather at a glance. Connect with natural rhythms through intuitive, adaptive visuals.

**Highlights:** 24-hour sun clock, Sunrise and sunset times, 365-day seasonal orbit clock, Moon phase display, Day/night visualization, Multiple city support, Weather display (US)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Time Machine free?

Time Machine is free to download, with in-app purchases available.

### Is Sun Moon Day free?

Sun Moon Day is free to download, with no in-app purchases.

### Which has better reviews, Time Machine or Sun Moon Day?

Time Machine is rated higher. Time Machine averages 4.5 out of 5 from 11 ratings, while Sun Moon Day averages 2.0 from 1 ratings.

### Do Time Machine or Sun Moon Day have ads?

Time Machine shows ads; Sun Moon Day does not.

### Which is updated more often, Time Machine or Sun Moon Day?

Time Machine ships an update fortnightly, and Sun Moon Day weekly. Most recently, Time Machine was updated on November 3, 2026 and Sun Moon Day on October 31, 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.*