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Frequently asked questions

Quick answers to the things most people want to know.

Is Flow & Glow free?

The core cycle tracker, phase explorer, and library are free forever. Premium unlocks advanced analytics and phase-aware workouts.

Do you sell my data?

Never. See our Privacy Policy for the details.

Can I use Flow & Glow on Android?

Yes, we're on the App Store today and Google Play is rolling out later this year.

How accurate are the predictions?

Accuracy improves with every cycle you log. Most users see 85%+ accuracy after three cycles.

Does it work for irregular cycles?

Yes, the model is built around variability, not a fixed 28-day assumption.