Comparison

AR Solar System PRO vs Countdown (Pro)

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AR Solar System PRO

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
Read full description

"AR Solar System" turns your device into a telescope in augmented reality for the observation of the planets of the Solar System. Choose and place a planet or several planets in the scene: in your home (in the air, on the floor, on a table, on a wall, on any horizontal surface) or outside the home (ex. open sky)... Observe the planets of our Solar System as you've never seen them before! The planets available for observation are: Sun, Mercury, Venus, Earth, Moon, Mars, Ceres, Jupiter, Saturn, Uranus, Neptune, Pluto, Haumea, Makemake, Eris The software uses the information available on the planets of the Solar System to animate the rotations of the planets: every second corresponds to one hour, each planet rotates at the real speed, in the direction of real rotation. For each planet data are available such as size, rotation period, period of revolution, type of atmosphere, gravity, etc... Walk in the scene with your legs moving between the planets (like travel in space) and observe them with your device like a telescope: - approaching the planet you will see more details such as craters, valleys, plains, mountain ranges, etc... - moving away from the planet, you will see the planet entirely or more planets together - turning around the planet you can see the side of interest or simulate the flight of a spaceship orbiting the planet - by moving over or under the planet you will be able to observe its poles - etc… Interacting manually with the planets you can: - Move the planet in the real scene (pan gesture: dragging a finger on the planet) - Enlarge and shrink the planet (pinch gesture: pinching the planet) - Rotate the planet around its axis of rotation (rotation gesture: rotating the planet with two fingers); manual rotation deactivates the automatic one - Remove the planet from the scene (long press gesture: holding a finger on the planet for half a second) - Add a new planet to the scene by touching the desired position (using horizontal plane in real world or feature points) - Select a planet from the scene and display its characteristics (double tap gesture: tap a planet twice with a finger) Background of the scene: in the presence of light in the real world the milky way and the stars (deep space) are projected as the background of the planets on the walls of your house or in the sky if you are outdoors; in the absence of light (or covering the camera with a finger) moving in the scene will seem to travel in deep space (virtual reality feature… the real world will be removed from the scene). Useful for all those who love to observe the planets of the Solar System in every detail, for teachers, scholars, students, astronomers, etc... UNIVERSAL APP: - You pay only once and run on all your devices

About

Countdown (Pro)

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
Read full description

Welcome to "Countdown ", your ultimate app for all countdown needs! Whether you're counting down the days to the next big event, capturing important reminders, or just setting a timer for your daily tasks, we've got you covered. Features: Personal Countdowns: Count down the days, hours, and minutes to special occasions like birthdays, anniversaries, or the start of your next Hayday adventure. With "MyLove" countdowns, you can even track the time to romantic events with your partner. Reminders: Never forget important dates again. Our reminder feature helps you stay on top of birthdays, anniversaries, or important meetings. Ad-Free Experience: Enjoy a seamless experience without interruptions. Our app is free of ads, allowing you to focus on what matters most - your time. Easy to Use: With a user-friendly interface and intuitive controls, it's easy to create, customize, and track countdowns. Personalization: Make your countdowns unique with your own pictures and names. Show your personal style and make every event unforgettable. Share the Anticipation: Share your countdowns with friends and family via social networks or message. Let them join in on your excitement and create shared memories. Download "Countdown (Ad-Free)" now and start looking forward to the important moments in your life with anticipation. It's time to make every moment count!

Screenshots

AR Solar System PRO4 screens
Countdown (Pro)4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
AR Solar System PRO versus Countdown (Pro): the parameters behind the verdict, then further details
ParameterAR Solar System PROCountdown (Pro)
Price$0.99Free — better
Rating1.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings11
Update frequencyEvery 46 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.612.0 — better
Further details — not scored
Size63 MB45 MB
Age rating4+4+
DeveloperGianluca Natalinichristoph joshua BOLL

Customer experience

AR Solar System PRO

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Countdown (Pro)

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

AR Solar System PRO

No in-app purchases

None

Countdown (Pro)

No in-app purchases

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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