# AR Solar System PRO vs Countdown (Pro)

The clearest difference is price: Countdown (Pro) at Free against AR Solar System PRO's $0.99. Countdown (Pro) also leads on rating (5.0 vs 1.0) and update cadence (every 5 weeks vs every 46 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Countdown (Pro) is free to download; AR Solar System PRO costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Countdown (Pro) holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

AR Solar System PRO ships an update every 46 months, Countdown (Pro) every 5 weeks. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | AR Solar System PRO | Countdown (Pro) |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ar-solar-system-pro/id1327934893/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/countdown-pro/id6477356554/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 63 MB | 45 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [christoph joshua BOLL](https://appshunter.io/developer/1631352653) |

## What reviewers say

### AR Solar System PRO

[App page](https://appshunter.io/ios/app/ar-solar-system-pro/id1327934893)

Explore the solar system in augmented reality. Place planets in your environment, walk among them, and learn detailed facts. Interact with celestial bodies to view them from all angles.

**Highlights:** Augmented reality planet placement, Interactive 3D planet models, Real-time planet rotation and revolution, Detailed astronomical data for each planet, Virtual space travel experience, Gesture-based interaction

**In-app purchases:** none


### Countdown (Pro)

[App page](https://appshunter.io/ios/app/countdown-pro/id6477356554)

Track upcoming events, set reminders for important dates, and personalize your countdowns with images and names. Share your anticipation with friends and family. Enjoy a seamless, ad-free experience for all your time-tracking needs.

**Highlights:** Personal countdowns for events, Customizable reminders, Ad-free experience, User-friendly interface, Personalization with pictures and names, Shareable countdowns

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AR Solar System PRO free?

AR Solar System PRO costs $0.99, with no in-app purchases.

### Is Countdown (Pro) free?

Countdown (Pro) is free to download, with no in-app purchases.

### Which has better reviews, AR Solar System PRO or Countdown (Pro)?

Countdown (Pro) is rated higher. AR Solar System PRO averages 1.0 out of 5 from 1 ratings, while Countdown (Pro) averages 5.0 from 1 ratings.

### Do AR Solar System PRO or Countdown (Pro) have ads?

Neither AR Solar System PRO nor Countdown (Pro) shows ads.

### Which is updated more often, AR Solar System PRO or Countdown (Pro)?

AR Solar System PRO ships an update every 46 months, and Countdown (Pro) every 5 weeks. Most recently, AR Solar System PRO was updated on September 30, 2026 and Countdown (Pro) on September 24, 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.*