anotherABC vs Solar System Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
anotherABC
This app offers a fun and interactive way to learn the alphabet, including tracing uppercase and lowercase letters, matching them, and letter recognition. It features a memory game to reinforce learning and is accessible offline. Designed for early learners, it provides a unique educational path.
- Uppercase and lowercase tracing
- Letter association
- Letter recognition
- Memory game
- Offline accessibility
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It's "anotherABC" app. We all learn differently. Find what works for you and/or your child, and keep on learning. It's never too early or too late to learn. This app provides another path of learning the alphabet (ABCs) that includes: - tracing of uppercase and lowercase alphabet, - associating uppercase with lowercase letters, - letter recognition, - memory game, - and more. Accessible offline. No in-app purchase and no ads.
Solar System Viewer
Explore and simulate the orbits of planets in our solar system. This app allows you to speed up or slow down time, travel to any date, and view planetary positions. It also offers widgets for your home screen and Apple Watch complications.
- Simulate planetary orbits
- Adjust time speed
- Time travel to specific dates
- Home screen widgets
- Apple Watch integration
- View planet overviews
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8Planets is a simple viewer and simulator for planetary orbits in our Solar System. 8Planets helps you discover how the planets aligned and move around over time so that you feel the scale of the Solar System or even the Universe. By giving you quick and easy access to the Solar System everywhere, 8Planets will make you feel that the Solar System is close to us. FEATURES ・Planetary Motion Speed up or slow down time to see how the planets rotate over time and grasp the scale of the Solar System. ・Time Travel Travel back or forward in time to view the Solar System or planetary positions on any given date. ・Widgets Widgets allow you to display the real-time Solar System on your Home Screen. ・Watch View the Solar System on your wrist and use Digital Crown to travel back or forward in time. ・Others Apple Watch Complications, Overview of the planets, Option to show Pluto, Sharing your favorite moment of the Solar System, URL Scheme, and more.
Screenshots
Verdict
The clearest difference is review sentiment: Solar System Viewer at 83% against anotherABC's 0%. Solar System Viewer also leads on rating (4.4 vs 3.7) and update cadence (every 2 months vs every 20 months). anotherABC's advantage is in-app purchases (none vs 4). On price, ads, monetization model 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
anotherABC costs $2.99 and Solar System Viewer $2.99 up front. Solar System Viewer sells 4 one-off in-app purchases. anotherABC asks for nothing beyond the download.
Solar System Viewer holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Solar System Viewer has 28 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of anotherABC's written reviews are positive against 83% of Solar System Viewer's.
anotherABC ships an update every 20 months, Solar System Viewer every 2 months. The most recent releases landed on September 23, 2026 and October 5, 2026 respectively.
| Parameter | anotherABC | Solar System Viewer |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 3.7 (3 ratings) | 4.4 (28 ratings) — better |
| Positive reviews | 0.0% of reviews | 83.3% of reviews — better |
| Number of ratings | 3 | 28 — better |
| Update frequency | Every 20 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Devices | iPhone | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 67 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Sigma Sky, LLC | BLUE COMET LABS LLC |
Customer experience
anotherABC
Solar System Viewer
In-app purchases
anotherABC
No in-app purchases
Solar System Viewer
- Io Tip$1.99
- Europa Tip$3.99
- Ganymede Tip$5.99
Show 1 moreShow fewer
- Callisto Tip$9.99
Questions
Is anotherABC free?
Is Solar System Viewer free?
Which has better reviews, anotherABC or Solar System Viewer?
Do anotherABC or Solar System Viewer have ads?
Which is updated more often, anotherABC or Solar System Viewer?
Other comparisons
