Comparison

3D Solar System vs Alert Sounds Pro

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

Head to head
About

3D Solar System

Explore our solar system in 3D and augmented reality. Learn about planets, moons, constellations, and stars with interactive maps and engaging quizzes. Create your own planets with AI.

Highlights
  • 3D and AR Solar System exploration
  • Interactive star map with gyroscope support
  • Detailed information on planets, moons, and constellations
  • Knowledge-testing quizzes and challenges
  • AI-powered planet creation
  • Constellation lore and astronomy facts
Features
Read full description

Have you ever wanted to hold the Solar System in your hands? Now you can. 3D Solar System turns your device into a window to the planets, constellations, and stars beyond. Solar System in 3D and AR Travel from the Sun to the icy edge of deep space — a planetary journey of nearly 15 billion kilometers through our cosmic backyard. Study planets, moons, dwarf planets, and two major asteroid fields: the Asteroid Belt between Mars and Jupiter, and the Kuiper Belt beyond Neptune. See how tiny Earth looks next to Jupiter. Zoom in on planets' craters, spin Saturn's rings, and realize just how vast the universe really is. Interactive star map for passionate stargazers A complete map of the night sky with gyroscope support. Tilt your device toward the ceiling and explore constellations like a true space explorer — as if you were standing under a real night sky. Learn each constellation's name, its ancient stories, and the astronomy behind them. Learn to identify Orion, Ursa Major, Cassiopeia and discover dozens more. What you can do: ► Study planets — from scorched Mercury to icy Neptune — along with moons, dwarf planets, and bright constellations like a real astronomer. ► Test your knowledge with quizzes, planet order challenges, "True or False", and mythology questions. Learn who the planets are named after, how long a day lasts on Pluto, and what makes a star shine. ► Create your own planet using AI — design it, name it, and explore it. 714,000+ people have downloaded our app. To put that in perspective: that's 79 times more than all the stars you can see in the night sky with your own eyes. Some features may require a subscription. Free version includes: basic planet info, part of the constellation catalog, some quizzes and tests, star map, and AI planet generation (up to 2 planets). Subscription unlocks: full content about the Solar System, full constellation catalog, all quizzes and tests, planet cross-sections, unlimited AI planet generation. Every planet is different. Each constellation has a story. The universe is waiting — and it's bigger than you ever imagined. Explore all planets, learn every constellation, and become the space explorer you've always wanted to be. Start your journey through space today. Privacy Policy: http://educationterra.com/privacy Terms Of Use: https://educationterra.com/tos

About

Alert Sounds Pro

Features
Read full description

Alert Sound Pro is the best emergency sounds app you can find in the cyber stores. From warning sounds to fire alarms and all types of emergency sounds can be found in this easy and funky app. If you have a kid and want to familiarize him or her for any danger sounds around, Alert Sound Pro is the best sounds app you can have in your device. This app would also be the ideal app for you to use for a quick warning sound training at your office or among your family as well.

Screenshots

3D Solar System4 screens
Alert Sounds Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Alert Sounds Pro at none against 3D Solar System's 10. Alert Sounds Pro also leads on ads (none vs shown) and iOS requirement (10.0 vs 16.0). 3D Solar System's advantage is update cadence (fortnightly vs every 2 months). On price 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

Both are free to download. 3D Solar System sells 10 in-app purchases, starting at $9.99 per month. Alert Sounds Pro asks for nothing beyond the download.

UpkeepUpdate frequency

3D Solar System ships an update fortnightly, Alert Sounds Pro every 2 months. The most recent releases landed on November 6, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
3D Solar System versus Alert Sounds Pro: the parameters behind the verdict, then further details
Parameter3D Solar SystemAlert Sounds Pro
PriceFreeFree
Rating4.4 (1.7K ratings) — better—
Positive reviews28.8% of reviews—
Number of ratings1.7K — better—
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.010.0 — better
Further details — not scored
Size352 MB39 MB
Age rating4+9+
DeveloperEducation TerraNipuna Arachchi

Bugs and requests

3D Solar System

Reported bugs

3 issues
  • Planets displayed incorrectly
  • Subscription charges without consent
  • Inability to cancel subscription

Requested features

4 requests
  • More free content and features
  • Realistic planet models and animations
  • Expanded content beyond the solar system
  • Improved accessibility and usability

Alert Sounds Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

3D Solar System

Subscriptions8
  • 1 Month PRO3 Days trial$9.991 Month
  • 1 month Sale2 Months trial$10.991 Month
  • 12 months sale3 Days trial$14.991 Year
Show 5 more
  • Astronomy guide - Sky atlas$19.991 Month
  • 12 months3 Days trial$29.991 Year
  • Astronomy guide - Sky atlas3 Days trial$29.993 Months
  • 2 Month Subscription3 Days trial$39.992 Months
  • 2 Months Subscription3 Days trial$39.992 Months
One-time2
  • Disable Ads Sale$9.99
  • Disable Ads$19.99
None

Alert Sounds Pro

No in-app purchases

Questions

Is 3D Solar System free?
3D Solar System is free to download, with in-app purchases available.
Is Alert Sounds Pro free?
Alert Sounds Pro is free to download, with no in-app purchases.
Do 3D Solar System or Alert Sounds Pro have ads?
3D Solar System shows ads; Alert Sounds Pro does not.
Which is updated more often, 3D Solar System or Alert Sounds Pro?
3D Solar System ships an update fortnightly, and Alert Sounds Pro every 2 months. Most recently, 3D Solar System was updated on November 6, 2026 and Alert Sounds Pro on October 27, 2026.

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