Solar System Clock vs Ringy Alarm
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Solar System Clock
Explore the time and positions of celestial bodies across our solar system. View analog and digital clocks for planets, dwarf planets, and moons, with interactive maps and customizable widgets. Understand planetary seasons and translate times between objects.
- Planet and moon time displays
- Analog and digital clock formats
- Interactive solar system map
- Customizable widgets
- Planetary season information
- Time translation between celestial bodies
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No AI was used in the making of this app, including code and visual assets. The app comes with the Earth and Mars clocks free of charge (including associated moons), and additional planet clocks can be purchased through the app or the App Store. The purchase also includes the new customisable widgets and the current and past positions of supported objects. Did you ever want to know the time on Saturn? The simple Solar System Clock can tell the time on any planet or dwarf planet, and the Sun in relation to Earth time. Calculated from the starting date of the Gregorian calendar, the app displays seconds, minutes, hours, days and years for each object based on orbit and rotation data. The time is given in both analog and digital formats and can be stopped and restarted for easy viewing, while keeping to the accurate localised time. A single analog clock face for all planets and dwarf planets is also included, and can be split into two clocks for main planets and dwarf planets.Β Times can be freely translated between planets, the Sun and moons. The app also provides the current and past positions of the planets, moons and dwarf planets to scale in the form of an interactive map, and the seasons on every planet and dwarf planet. A widget form of the Earth and Mars clocks is provided for circular widget slots on Apple Watch, and widgets on other supported devices can be customised within the app. An iMessage extension is also included to enable easy communication using the time systems. The main clock can also be projected as functional wall art.
Ringy Alarm
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Ever set an alarm at 2 AM and found yourself doing the mental math to figure out exactly how many hours of sleep you have left? Ringy Alarm fixes that. Built by an independent mobile developer who missed this exact feature, Ringy Alarm is a lightweight, full-featured alarm app designed around one critical addition: a live countdown widget right on your lock screen and home screen. At a single glance, youβll see the exact hours and minutes remaining before your alarm goes off. No math, no guessing, just peace of mind. Features: β’ Live countdown widgets: Keep track of your remaining sleep time directly from your lock screen or home screen. β’ Privacy-first design: The app is entirely frontend-driven. It requires no internet connection, uses zero trackers, collects no data, and serves no ads. Your data never leaves your device. β’ Multilingual support: Ringy Alarm automatically detects your device's default language for a seamless setup, but gives you the full freedom to switch it manually in the options menu. β’ Custom audio tracks: Wake up to custom alarm sounds generated using Suno AI music technology. β’ High test coverage: Built with clean code standards and backed by a 96% test coverage to ensure reliability when you need it most. Ringy Alarm is completely free to use with no annoying subscription pop-ups or hidden paywalls. A 'Buy Me a Coffee' option is available inside if youβd like to support an indie developer covering Apple fees and assets, but there is absolutely no obligation. Download Ringy Alarm today and get a better view of your time.
Screenshots
Verdict
The clearest difference is in-app purchases: Ringy Alarm at none against Solar System Clock's 1. On price, update cadence, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Solar System Clock sells 1 one-off in-app purchase. Ringy Alarm asks for nothing beyond the download.
Solar System Clock ships an update every 6 weeks, Ringy Alarm monthly. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | Solar System Clock | Ringy Alarm |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | β |
| Update frequency | Every 6 weeks | Monthly β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone, iPad, Apple Watch β better | iPhone, iPad |
| Requires iOS | 18.0 | 18.0 |
| Further details β not scored | ||
| Size | 26 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | Sunita George | ELYES SELLAMI |
In-app purchases
Solar System Clock
- All Planets and Dwarf Planets$2.99
Ringy Alarm
No in-app purchases
Questions
Is Solar System Clock free?
Is Ringy Alarm free?
Do Solar System Clock or Ringy Alarm have ads?
Which is updated more often, Solar System Clock or Ringy Alarm?
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