Clusters: a miniature ballet performed by thousands of colored dots.

How many ways can colored dots chase each other around? What happens when a hundred dots fall in love with each other? What happens when some dots are afraid of other dots and fly away when they come near?

With the Clusters app, you can explore the dynamics of colored dots that huddle, hug, swarm, squiggle and scram. It's all based on a clever particle system algorithm that uses a mix of attractions and repulsions.

Each color is like a species in an ecosystem. Some species enjoy each other's company, so they stick together. Other species avoid each other like the plague. So, you may ask...what happens when a yellow dot and a blue dot are in love, but the yellow dot hates red dots, while the blue dot loves red dots? What happens when a red dot comes along?

Sometimes there's a skirmish. Other times, there's a delicately-balanced symbiotic relationship. When hundreds of these dots converge, the results can be quite unpredictable.

With the Clusters app, you can set up little experiments and watch what happens. It's a little bit like biology; it's a little bit like physics. So, what is it exactly? Let your imagination decide.

Ratings and Reviews

4.9 out of 5
15 Ratings

15 Ratings

fungusamongus ,

Amazing teaching tool.

Clusters is blowing my mind in terms of the complexity of the forms that emerge as the particles find various forms of equilibrium in the ecosystems. I am getting things that resemble microorganisms, or atoms with nuclei and swarms of electrons, clusters of “nuclei” forming molecule-like structures seemingly bound by swarms of other particles. Cell-like things absorb particles and divide, I see interesting symmetry and behavior in these clusters. Beautiful app, greatly appreciated.

McJockman ,

Love this app, needs a better sandbox and maybe reactions, but near perfect!

The simulations are so fun to play with. Especially just clicking random to see what happens. I like generating fictional universes and peaking in to see what's up.

That said, this tool is only missing a sandbox, where particle rules can all be tinkered with, positions manipulated, etc.

The addition of reactions between particles would truly set this simulator apart from it's peers.


Nickarcan1621 ,


It’s a vary interesting app


Wiggle Planet, LLC
3.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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