Physarum vs Deep Time Earth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Physarum
Explore the fascinating emergent behavior of slime molds through a visually rich simulation. Adjust agent parameters, influence growth with intuitive controls, and discover complex, mesmerizing patterns.
- Slime mold behavior simulation
- Autonomous agent control
- Adjustable agent parameters
- Maze solving and network formation
- Vibrant color modes
- Interactive system manipulation
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Explore artificial life through a living, flowing simulation inspired by Physarum polycephalum, the slime mold famous for forming networks, solving paths, and showing intelligence without a brain. Physarum turns simple local rules into complex motion. Thousands of agents sense trails, turn, move, and deposit new traces. As the field evolves, branching networks, waves, and organic textures emerge in real time. Use Physarum to: - Tune sensor distance, turn angle, movement, and trail strength - Paint into the field and guide the simulation by touch - Explore chaotic, branching, and self-organizing patterns - Save and restore interesting agents, fields, and rules - Create vivid generative visuals with color controls It is part science toy, part generative art studio, and part meditative visual instrument. Whether you study emergent systems, teach artificial life, or simply enjoy hypnotic motion, Physarum gives you a hands-on way to watch complexity grow from simple behavior.
Deep Time Earth
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Deep Time Earth shows you how the Earth has changed over time due to tectonic action. View how the Earth looked over the last 540 million years. Select different times manually (in 5 million year increments) or let the app automatically run through time - forwards or backwards. Spin the globe around to see what happens in different locations. Deep Time Earth uses PALEOMAP Paleodigital Elevation Models (PaleoDEMS) from a study by Christopher Scotese and Dr Nicky Wright. Learn more about this data at EarthByte: https://www.earthbyte.org/paleodem-resource-scotese-and-wright-2018/
Screenshots
Verdict
The clearest difference is in-app purchases: Deep Time Earth at none against Physarum's 6. On price, ads, device support and iOS requirement 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. Physarum sells 3 one-off in-app purchases. Deep Time Earth asks for nothing beyond the download.
| Parameter | Physarum | Deep Time Earth |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (32 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 32 — better | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, Vision Pro — better |
| Requires iOS | 26.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 32 MB | 145 MB |
| Age rating | 4+ | 4+ |
| Developer | GEORGY OSTROBROD | Mark Bush |
In-app purchases
Physarum
- Small developer tip2 variants$1.99
- Medium developer tip2 variants$3.99
- Big developer tip2 variants$5.99
Deep Time Earth
No in-app purchases









