One subscription. Both of you.

He joins free with your invite. With Premium, he gets the Premium view too, at no extra cost.

MonthlyAnnual

Founding member, limited spots

Founding

Join the inner circle of FertilityFlow founders

29 PLN/mo

Shown in your local currency at checkout

Lowest founding tier price ever

Everything in Free, plus:

Everything from the Free plan, plus:
Ask AI about your symptoms, like "Why do I get headaches on day 14?" and get an answer in seconds, based on YOUR data
AI detects patterns you can't see, such as "Your headaches appear around ovulation in 4 of 5 cycles"
Doctor-ready reports you can print and show your OB/GYN, instead of saying "it was around day 15, I think"
20+ courses from a certified NFP instructor, from beginner to advanced
The full His Side for him at no extra cost: mood and symptom forecasts, and your chart note in his language
Lab result analysis: upload FSH, LH, and progesterone results, and AI explains what they mean

Limited spots

2 / 100

98 founding spots remaining.

Most popular

AI Premium

39 PLN/mo

Shown in your local currency at checkout

Everything in Free, plus:

Everything from the Free plan, plus:
Ask AI about your symptoms, like "Why do I get headaches on day 14?" and get an answer in seconds, based on YOUR data
AI detects patterns you can't see, such as "Your headaches appear around ovulation in 4 of 5 cycles"
Doctor-ready reports you can print and show your OB/GYN, instead of saying "it was around day 15, I think"
20+ courses from a certified NFP instructor, from beginner to advanced
The full His Side for him at no extra cost: mood and symptom forecasts, and your chart note in his language
Lab result analysis: upload FSH, LH, and progesterone results, and AI explains what they mean

Free

$0/mo

Forever. No credit card required.

Start understanding your cycle

Daily log in 60 seconds: temperature, mucus, and symptoms, faster than making tea
Your cycle day and temperature chart, so you can see what your cycle is doing
Every observation on one calendar
3 free courses from a certified NFP instructor, covering the basics for both of you
His Side: a free account for him, with your phase in plain words
Daily Flower: send each other a flower and a short note
Together Month: earn a free month of Premium with points
Your data, always yours: secure, private, and belongs to you

If after 30 days you're not more on the same page about her cycle, we'll refund you in full.

No questions asked. Full refund.

Frequently asked questions

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