Comparison

Time Machine vs Sun Moon Day

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Time Machine

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
Read full description

How much time has become part of your story? Time Machine gives you a fresh way to see the passing of time and remember the moments that matter. YOUR LIFE, IN TIME Enter your date of birth and explore how much time you've lived. See the progress of your week, month and year, and take a closer look at the time remaining in your day. DATES THAT MATTER Keep track of birthdays, anniversaries and personal milestones. See the time until or since each event, and explore your dates in the calendar. KEEP YOUR MEMORIES Save photos and words in memory albums for your important days, and revisit moments from the past. A MESSAGE TO THE FUTURE Seal a time capsule with a message to your future self and choose when to open it. About time. About you.

About

Sun Moon Day

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
Read full description

Sun Moon Day displays a real-time 24-hour sun clock and a 365-day seasonal clock, showing you exactly where you are in the day and year at a glance. Features: • 24-hour clock showing sunrise, sunset, and current sun position • Day/night visualization with real-time sky color transitions • 365-day orbit clock showing Earth's position and current season • Moon phase display with moonrise and moonset times • Optional NOAA weather display (US locations) • Support for multiple cities worldwide • Dark mode and daylight-adaptive backgrounds Sun Moon Day gives you an intuitive, visual sense of time — connecting you to the natural rhythms of the sun, moon, and seasons.

Screenshots

Time Machine4 screens
Sun Moon Day4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Time Machine ships an update fortnightly, Sun Moon Day weekly. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard6 real differences · 4 level
Time Machine versus Sun Moon Day: the parameters behind the verdict, then further details
ParameterTime MachineSun Moon Day
PriceFreeFree
Rating4.5 (11 ratings) — better2.0 (1 ratings)
Positive reviews66.7% of reviews—
Number of ratings11 — better1
Update frequencyFortnightlyWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size71 MB3 MB
Age rating4+4+
Developer红升 孙Joseph Orr

In-app purchases

2 purchases

Time Machine

Subscriptions2
  • 时间机器1月高级会员$0.491 Month
  • 时间机器1年高级会员3 Days trial$5.991 Year
None

Sun Moon Day

No in-app purchases

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 October 29, 2026 and Sun Moon Day on October 28, 2026.

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