Available on the App Store

Small moments,
big ripples.

Log your daily events and watch ButterflyEffect Pro reveal the invisible cause-and-effect chains that shape your life.

Download on the App Store

How it works

Your diary, connected.

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Log anything

Add events as they happen throughout your day — big or small. No structured format needed.

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Discover chains

Our AI finds the causal threads connecting your events — the ones you might not notice in the moment.

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The butterfly effect

See how a single event — a bad night's sleep, a skipped meal — ripples forward into the rest of your day.

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Private by design

Your events are stored only on your device. Nothing is stored on our servers.