hellocetus: supermoon calendar
Not in any tracked top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperWaitcle
CategoryLifestyle
PriceFree
Released
Rating★ 5.0 (2)
Version1.0.16
Age rating4+
First seen by us
24 Oct 2026
24 Oct 2026Installs (est.)100+ worldwide
Rating
5.0 ★
2 ratings
Measured
hellocetus: supermoon calendar on the App Store
App details
App ID
6759944569
Publisher
Waitcle
On the store since
Mar 2026
Under a year
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Content rating
4+
Languages
18
NL EN FR DE HI ID IT JA KO PL PT RU …
Size
81 MB
Also listed in
Utilities
hellocetus: supermoon calendar downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
2 ratings
Measured
Ratings
2
Measured
About hellocetus: supermoon calendar
hellocetus is an astronomy calendar for planning supermoons, following Moon phases, checking local Sun and Moon times, and comparing planet positions. Browse long-range events or open today’s sky data in one focused app.
Plan ahead with the supermoon calendar
• Browse long-range supermoon dates and astronomy events by year
• See exact local event times and countdowns for upcoming supermoons
• Explore Supermoons, Micromoons, Blue Moons, Black Moons, Harvest Moons, Hunter’s Moons, Blood Moons, Super New Moons, and Micro New Moons
• Find solar and lunar eclipse dates in the same event calendar
Follow the Moon day by day
• View a monthly calendar with each day’s Moon phase and illumination
• Open full moon details with the local event time, moonrise, moonset, city, time zone, and sky position
• Check today’s moonrise, moonset, phase, illumination, and lunar angle
• Save observation notes, plans, and reminders directly on calendar dates
• Receive optional alerts one hour before supported astronomy events
Compare planets and the sky
• Switch between Local Sky, Earth-centered, and Sun-centered planet views
• Compare altitude, azimuth, brightness, longitude, latitude, distance, right ascension, declination, and elongation
• Follow short-term planetary motion with timeline views
• Use a selected city or saved GPS location for local calculations
• Compare standout constellations above the horizon across countries and representative cities
• Explore planet surface previews in a clean globe-style interface
Daily Sun and Moon information
Check sunrise, sunset, total daylight, day-length change, moonrise, moonset, phase, and illumination at a glance. hellocetus brings long-range planning and everyday sky data into one focused experience.
Free and Premium
hellocetus includes advertising. Optional monthly, yearly, or lifetime Premium removes ads and unlocks the Home Screen full moon widget. Current products, localized prices, renewal details, and purchase terms are shown in the app before purchase.
Available in 22 supported languages.
Terms of Service:
https://hellocetus.com/terms/
Apple Standard Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Plan ahead with the supermoon calendar
• Browse long-range supermoon dates and astronomy events by year
• See exact local event times and countdowns for upcoming supermoons
• Explore Supermoons, Micromoons, Blue Moons, Black Moons, Harvest Moons, Hunter’s Moons, Blood Moons, Super New Moons, and Micro New Moons
• Find solar and lunar eclipse dates in the same event calendar
Follow the Moon day by day
• View a monthly calendar with each day’s Moon phase and illumination
• Open full moon details with the local event time, moonrise, moonset, city, time zone, and sky position
• Check today’s moonrise, moonset, phase, illumination, and lunar angle
• Save observation notes, plans, and reminders directly on calendar dates
• Receive optional alerts one hour before supported astronomy events
Compare planets and the sky
• Switch between Local Sky, Earth-centered, and Sun-centered planet views
• Compare altitude, azimuth, brightness, longitude, latitude, distance, right ascension, declination, and elongation
• Follow short-term planetary motion with timeline views
• Use a selected city or saved GPS location for local calculations
• Compare standout constellations above the horizon across countries and representative cities
• Explore planet surface previews in a clean globe-style interface
Daily Sun and Moon information
Check sunrise, sunset, total daylight, day-length change, moonrise, moonset, phase, and illumination at a glance. hellocetus brings long-range planning and everyday sky data into one focused experience.
Free and Premium
hellocetus includes advertising. Optional monthly, yearly, or lifetime Premium removes ads and unlocks the Home Screen full moon widget. Current products, localized prices, renewal details, and purchase terms are shown in the app before purchase.
Available in 22 supported languages.
Terms of Service:
https://hellocetus.com/terms/
Apple Standard Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Latest updates
1.0.16
The Full Moon widget has been added!
