# anotherABC vs Solar System Viewer

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.

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.

## The numbers

| Metric | anotherABC | Solar System Viewer |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/anotherabc/id516045568/reviews) | **[4.4 (28 ratings)](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445/reviews)** |
| Number of ratings | 3 | **28** |
| Positive reviews | 0.0% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 67 MB | 22 MB |
| Requires iOS | 26.0 | 26.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Sigma Sky, LLC](https://appshunter.io/developer/320947305) | [BLUE COMET LABS LLC](https://appshunter.io/developer/1492055170) |

## What reviewers say

### anotherABC

[App page](https://appshunter.io/ios/app/anotherabc/id516045568)

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.

**Highlights:** Uppercase and lowercase tracing, Letter association, Letter recognition, Memory game, Offline accessibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar System Viewer

[App page](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445)

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.

**Highlights:** Simulate planetary orbits, Adjust time speed, Time travel to specific dates, Home screen widgets, Apple Watch integration, View planet overviews

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Io Tip | $1.99 | one-time |
| Europa Tip | $3.99 | one-time |
| Ganymede Tip | $5.99 | one-time |
| Callisto Tip | $9.99 | one-time |


## Frequently asked questions

### Is anotherABC free?

anotherABC costs $2.99, with no in-app purchases.

### Is Solar System Viewer free?

Solar System Viewer costs $2.99, and also offers in-app purchases.

### Which has better reviews, anotherABC or Solar System Viewer?

Solar System Viewer is rated higher. anotherABC averages 3.7 out of 5 from 3 ratings, while Solar System Viewer averages 4.4 from 28 ratings.

### Do anotherABC or Solar System Viewer have ads?

Neither anotherABC nor Solar System Viewer shows ads.

### Which is updated more often, anotherABC or Solar System Viewer?

anotherABC ships an update every 20 months, and Solar System Viewer every 2 months. Most recently, anotherABC was updated on September 23, 2026 and Solar System Viewer on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*