Grainfall: Falling Sand
Physics sandbox particle toy
About
Experiment with a physics sandbox where materials interact realistically. Create complex reactions, record your creations as videos, and share them with friends. Enjoy a free simulation with optional pro features for more materials and customization.
What's New in Grainfall
1.0.0
August 21, 2026
Subscriptions & In-App Purchases
$0.99
Grainfall Pro
Six more materials, saved worlds, no watermark.
Developer apps
FAQ
What materials can I use in Grainfall?
The free version includes sand, water, oil, plant, fire, and wall. The PRO version adds acid, glass, lava, ice, gunpowder, and fireworks for more complex simulations.
Does Grainfall have ads?
No, Grainfall is ad-free. The developer states 'no ads, nothing collected' for a pure user experience.
Can I play Grainfall offline?
Yes, Grainfall works entirely offline. You do not need an internet connection to play or use its features.
How do I record videos in Grainfall?
You can hit the record button at any point to capture your simulation. The free version includes a small watermark in the corner of exported videos.
What is the difference between the free and PRO versions of Grainfall?
The PRO version, a one-time purchase, unlocks six additional materials, removes the watermark from video exports, allows unlimited world saves, and offers four color themes and tilt gravity control.
How often is Grainfall updated?
The app was last updated on August 21, 2026, with version 1.0.0. Further update frequency is not specified.
What devices does Grainfall support?
Grainfall is available on Mac, iPhone, iPad, and iPod, indicating broad Apple ecosystem compatibility.
What is the age rating for Grainfall?
Grainfall has an age rating of 12+, suggesting it is suitable for users aged 12 and above.
