Planet Gravity vs Solar Saucer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Planet Gravity
Explore the gravitational pull of different celestial bodies. Watch pendulums swing and collide under varying gravitational forces, offering a unique physics simulation experience.
- Select different planets for unique gravity
- Observe pendulum collisions
- Physics-based simulation
- Educational planet facts
- Interactive entertainment
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Planet Gravity isn't just about gravity anymore. Select a planet to get a scrolling fact about that planet on the display. This app is a twist on the Newton’s cradle balance balls. The pendulum balls collide just like the real set and you can select other planets to use that planet’s gravity. How does the pendulum swing with different gravity? Even the Sun has gravity - see what it does to the motion of the pendulums (well they'd probably melt but you get the idea.....)
Solar Saucer
Pilot a space saucer through the solar system, tapping to gain altitude and navigate challenging gaps. Compete for high scores across three difficulty levels in this fast-paced arcade game.
- Arcade-style gameplay
- Solar system navigation
- Tap-to-fly controls
- Increasing difficulty
- High score tracking
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Solar Saucer is an arcade-style game of speed and agility. You are trying to navigate your space saucer through the planets of the solar system. Tap to gain altitude and plan your course through the narrowing gaps between solar objects. The farther you go, the more points you get! Try any of three levels of difficulty to test your ability to pilot through the treacherous reaches of nearby space!
Screenshots
Verdict
The clearest difference is review sentiment: Solar Saucer at 100% against Planet Gravity's 25%. Solar Saucer also leads on iOS requirement (13.2 vs 17.6). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 14 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | Planet Gravity | Solar Saucer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 14 months | Every 14 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.2 — better |
| Further details — not scored | ||
| Size | 5 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Niagara Mobile LLC | Steptap, Inc. |
Customer experience
Planet Gravity
Solar Saucer
In-app purchases
Planet Gravity
No in-app purchases
Solar Saucer
No in-app purchases
Questions
Is Planet Gravity free?
Is Solar Saucer free?
Do Planet Gravity or Solar Saucer have ads?
Which is updated more often, Planet Gravity or Solar Saucer?
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