InSync translates hormone phases into concrete guidance: what she may be experiencing today — and what you can actually do. Science-backed, stereotype-free.
Her body runs a four-phase program — and nobody ever explained it to you. InSync fixes that in 5 minutes instead of 5 semesters.
Where she likely is in the cycle and what that can mean — always as probability, never as claim. Talking to her beats any app. But talking prepared beats both.
One concrete thing you can do for her today. Small, doable, effective. (“Bring her chocolate” counts. Yes, really.)
Phase, cycle day, energy tendency, do's & don'ts — at a glance.
One concrete action a day. Build the streak, build the relationship.
Forecasts with a ± window instead of fake precision. The more you log, the sharper it gets.
Including “what NOT to say”. Learned the hard way, so you don't have to.
10 questions of cycle science, with sources. Free, forever.
A phase-aware coach for real situations + her real data instead of estimates — with Premium.
Try 14 days free
then €39.99 / year
= €3.33 / month
Try 14 days free
then €6.99 / month
€99.99 once — yours forever
All prices incl. VAT. Cancel anytime. We'll remind you before the trial ends — promised.
Fair question. InSync doesn't track her — it educates you. The data you enter stays on your device. It's about understanding, not surveillance. And talking to her beats any app — InSync just tells you when listening matters most.
No. InSync works entirely without her — you estimate the cycle start and the app learns from your observations. If she wants, she can later share her real data via invite (Premium). She never has to.
By default: nothing — it never leaves your device. Optional sync runs through our self-hosted EU server, encrypted, tracker-free. Four anonymous counters around the payment flow are all we measure.
Anytime, in two clicks — in the subscription portal or via the cancellation button at the bottom of this page, no login needed.
No. InSync provides probabilities and education, not diagnoses. If severe symptoms regularly disrupt her life, encourage her to seek medical advice.