Gravity Zen vs SandBot
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gravity Zen
Observe small circles interacting with a central gravity field. Add numerous boxes to explore how they naturally settle into a stable arrangement. It's a simple yet captivating simulation.
- Gravity field simulation
- Add multiple objects
- Observe stable configurations
- Interactive physics
- Minimalist design
Read full descriptionHide full description
Watch small circles move around a central gravity field. Add as many boxes as you like. Explore how they find a "stable" configuration by themselves.
SandBot
Read full descriptionHide full description
SandBot is a creative remote-control studio for your sand-drawing robot. Send text, images, and geometric patterns to your robot over your home network — and watch it draw in the sand in real time. - Type anything and send it as a sand drawing - 15 mathematical patterns including spirals, mandalas, and celtic knots - Upload any photo and convert it to sand art via edge detection - Describe a custom pattern and let AI generate it - Watch your robot draw via live camera feed - Every drawing saved in history with completion photos
Screenshots
Verdict
The clearest difference is price: SandBot at Free against Gravity Zen's $0.99. SandBot also leads on in-app purchases (none vs 2). Gravity Zen's advantage is iOS requirement (15.0 vs 26.1). On 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
SandBot is free to download; Gravity Zen costs $0.99 up front. Gravity Zen sells 2 one-off in-app purchases. SandBot asks for nothing beyond the download.
| Parameter | Gravity Zen | SandBot |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (70 ratings) — better | — |
| Positive reviews | 93.8% of reviews | — |
| Number of ratings | 70 — better | — |
| Update frequency | Every 9 days | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 13 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Dominik Hauser | Anderson Colburn |
In-app purchases
Gravity Zen
- Small Tip$0.99
- Large tip$2.99
SandBot
No in-app purchases









