Ask Luna why you feel the way you do. She knows where you are in your cycle, remembers what helped you last time, and gives you a clear answer in seconds.
Free on iPhone · Luna Pro free trial · delete your data anytime
Your hormones change across four phases, and your energy, mood and body change with them. Luna knows which phase you’re in and tailors her guidance to it.
Accurate predictions and simple logging, with an AI companion that knows your cycle and explains it.
Log in seconds. Period and phase forecasts get more accurate with every cycle you track.
Cramps, mood swings, low energy, bad sleep. Get a clear, supportive answer at any hour, based on where you are in your cycle.
Luna remembers what you’ve shared in chats and your journal, and spots patterns across cycles that are easy to miss.
Log a symptom and see why it’s happening and what tends to help, from food to movement to sleep. Based on NHS and ACOG guidance.
See how your mood, energy and symptoms line up with your cycle, month after month.
A short, personal message each morning, and a heads-up the day before the symptoms you usually get.
We don’t sell or share your data with advertisers or data brokers. Subscriptions are our only source of revenue.
There are no ads and no third-party tracking in the app. Nothing follows you around the internet.
See everything Luna knows about you, and permanently erase it whenever you choose.
Privacy isn’t a premium feature. It’s the default.
Cycle tracking, logging and daily check-ins are always free. Luna Pro adds unlimited conversations with Luna, memory, full insights and symptom heads-ups, plus every new feature as it launches.
Yes. No ads, no third-party trackers, no data sales — the app is funded by subscriptions alone. You can export or permanently delete everything from inside the app.
No. Luna gives general wellness guidance based on trusted sources such as the NHS and ACOG. She doesn’t diagnose, and she’ll suggest seeing a doctor when something needs medical attention.
Tracking is free. Luna Pro is $9.99 a month, $59.99 a year, or $99.99 once for lifetime access. The yearly plan starts with a free trial: cancel before it ends and you won’t be charged.
My Luna Flow is on the App Store for iPhone, free to start. Luna also posts daily as @mylunaflow on TikTok.
Download My Luna Flow free on iPhone and ask Luna your first question today.