Comparison

Mission Gravity vs PlanetCrystals Inc

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

Head to head
About

Mission Gravity

Pilot your spacecraft home by utilizing planetary gravity and managing fuel. Navigate through asteroid fields and aim for a smooth landing to complete your mission.

Highlights
  • Gravity-based flight mechanics
  • Fuel management
  • Asteroid avoidance
  • Clean landing challenges
  • Physics simulation
Features
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You completed your tasks on a neighbor planet successfully. The final mission: Fly home! Use the attraction of other planets, note the fuel, avoid asteroids and land as clean as possible.

About

PlanetCrystals Inc

Features
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Embark on an exciting journey through the cosmic expanses and help the aliens mine enough crystals on each planet to build a rocket! Players will have the opportunity to send friends from other planets on thrilling space adventures, collecting parts for the rocket and assisting the aliens in reaching their homes. Functions: Mine Crystals: Click on the planet to help your new friends. Upgrades: Improve your devices to gather resources for the rocket. Space Adventures: Send your rocket on expeditions to other planets and explore new worlds.

Screenshots

Mission Gravity4 screens
PlanetCrystals Inc4 screens

Verdict

The call

The clearest difference is in-app purchases: PlanetCrystals Inc at none against Mission Gravity's 2. PlanetCrystals Inc also leads on iOS requirement (11.0 vs 13.0). On price, update cadence, ads 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. Mission Gravity sells 2 one-off in-app purchases. PlanetCrystals Inc asks for nothing beyond the download.

UpkeepUpdate frequency

Mission Gravity ships an update every 5 days, PlanetCrystals Inc weekly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Mission Gravity versus PlanetCrystals Inc: the parameters behind the verdict, then further details
ParameterMission GravityPlanetCrystals Inc
PriceFreeFree
Rating4.8 (20 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size141 MB121 MB
Age rating4+4+
DeveloperStefan ObergrussbergerRuslan Shevtsov

In-app purchases

2 purchases

Mission Gravity

One-time2
  • Remove Ads$0.99
  • Unlock all levels$1.99
None

PlanetCrystals Inc

No in-app purchases

Questions

Is Mission Gravity free?
Mission Gravity is free to download, with in-app purchases available.
Is PlanetCrystals Inc free?
PlanetCrystals Inc is free to download, with no in-app purchases.
Do Mission Gravity or PlanetCrystals Inc have ads?
Neither Mission Gravity nor PlanetCrystals Inc shows ads.
Which is updated more often, Mission Gravity or PlanetCrystals Inc?
Mission Gravity ships an update every 5 days, and PlanetCrystals Inc weekly. Most recently, Mission Gravity was updated on November 2, 2026 and PlanetCrystals Inc on October 30, 2026.

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