Comparison

Sun Alarm Clock vs Moon Phases

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

Head to head
About

Sun Alarm Clock

Wake up to natural celestial events. This app sets alarms for sunrise, sunset, moon phases, and twilight periods, adapting to your location and daylight saving changes. Customize offsets and manage multiple alarms easily.

Highlights
  • Alarms for sunrise and sunset
  • Moonrise and moonset alarms
  • Twilight and golden hour alerts
  • Customizable offsets
  • Location-aware timing
  • Supports multiple alarms
Read full description

Wake up with the sun. Never miss golden hour. Sun Alarm turns sunrise, sunset, and other sun and moon events into reliable daily alarms — at any place on Earth. **Set alarms for natural events** • Sunrise and sunset • Solar noon • Golden hour and blue hour (morning and evening) • Civil, nautical, and astronomical twilight • Moonrise, moonset, and moon transit • Moon phases: full moon, new moon, first quarter, third quarter, crescents, gibbous • Custom sun altitude (e.g. “sun 5° above horizon”) • Next equinox and solstice **Flexible timing** • At the exact event time, or any number of hours and minutes before or after • Alarms follow the event every day (or next occurrence for moon phases and equinox/solstice) **Any location** • Choose a place on the map or search for a city • Correct time zone for the chosen location, so alarm times stay accurate when you travel or when daylight saving changes **Designed for daily use** • Multiple alarms, each with its own type, place, and offset • Optional names • Snooze and clear from Lock Screen and notifications SunAlarm uses your chosen location’s coordinates and time zone to compute event times, so you get one less thing to think about—and one more reason to look up at the sky. By using SunAlarm, you agree to Apple's standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Moon Phases

Features
Read full description

Know tonight’s Moon. Plan your next moonlit night. Check the current moon phase, see when the next full moon arrives, and find local moonrise and moonset times. Moon Phases brings these everyday answers together with a cinematic Moon shaped by NASA lunar terrain, soft skies and the faint glow of earthshine. Tonight, at a glance See illumination, Moon age and distance. Follow the Sun and Moon on today’s interactive horizon chart, check sunrise and sunset, and use the Moon compass to find its direction. Save cities to check the Moon away from home. Current weather appears when available. Start free • Tonight’s phase and countdowns to the next full and new moon • Local moonrise, transit and moonset times • Today’s Sun/Moon horizon chart and a lunar calendar preview • Upcoming solar and lunar eclipse dates • Optional moonrise, full moon eve, new moon eve and eclipse reminders • A featured illustrated Moon Story, with sources for further reading Go further with Pro One purchase, no subscription: • Remove ads • Explore full monthly and annual lunar calendars • Browse the seven-day phase forecast • Add Home Screen and Lock Screen moon widgets • Plan photography with golden- and blue-hour times • Read all twelve illustrated Moon Stories • Choose Moon colours and imagery, and use alternative calendars Made for iPhone and iPad, with light and dark appearances and layouts that adapt to larger text. Moon and Sun calculations run on your device. Weather and city search require an internet connection. The free version contains ads. Terms of Use: https://www.cong-le.com/terms.html Privacy Policy: https://www.cong-le.com/privacy.html

Screenshots

Sun Alarm Clock4 screens
Moon Phases4 screens

Verdict

The call

The clearest difference is ads: Sun Alarm Clock at none against Moon Phases's shown. Moon Phases's advantage is update cadence (monthly vs every 3 months) and iOS requirement (18.0 vs 26.1). On price, in-app purchases and device support 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. Sun Alarm Clock sells 3 in-app purchases, starting at $0.99 per month and Moon Phases sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sun Alarm Clock ships an update every 3 months, Moon Phases monthly. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Sun Alarm Clock versus Moon Phases: the parameters behind the verdict, then further details
ParameterSun Alarm ClockMoon Phases
PriceFreeFree
Rating4.6 (27 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings27 — better—
Update frequencyEvery 3 monthsMonthly — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.118.0 — better
Further details — not scored
Size34 MB35 MB
Age rating4+4+
DeveloperVolker Voecking Software EngineeringPocket Grove Ltd

In-app purchases

3 purchases

Sun Alarm Clock

Subscriptions2
  • Premium (Monthly)$0.991 Month
  • Premium (Yearly)$9.991 Year
One-time1
  • Premium (One-Time Purchase)$29.99
1 purchases

Moon Phases

One-time1
  • Moon Phases Pro$2.99

Questions

Is Sun Alarm Clock free?
Sun Alarm Clock is free to download, with in-app purchases available.
Is Moon Phases free?
Moon Phases is free to download, with in-app purchases available.
Do Sun Alarm Clock or Moon Phases have ads?
Moon Phases shows ads; Sun Alarm Clock does not.
Which is updated more often, Sun Alarm Clock or Moon Phases?
Sun Alarm Clock ships an update every 3 months, and Moon Phases monthly. Most recently, Sun Alarm Clock was updated on October 24, 2026 and Moon Phases on October 31, 2026.

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