Disclaimer

The information in Mensis is general in nature and replaces no consultation, diagnosis or treatment by a qualified healthcare professional. Do not make a medical decision solely on what the app shows you.

If you're unsure about a symptom, your cycle changes suddenly, or a complaint persists: see your doctor or midwife. The cycle-phase texts in the app are there to help you understand what's happening in your body, not to establish anything.

If you want to reliably avoid pregnancy, use a recognised method of contraception and talk to your doctor.

Mensis calculates predictions from a weighted average of your last six cycles and always shows a margin of uncertainty with them. That margin isn't hedging, it's part of the answer.

• With zero or one logged cycle the margin is explicitly wide (± 3 to 4 days).
• With an irregular cycle, PCOS, endometriosis, thyroid conditions, perimenopause, breastfeeding, illness, stress, travel or weight change, predictions can be further off.
• If you use hormonal contraception, the app calculates no ovulation. Usually there isn't one.
• Predictions are calculated on your device and change as soon as you log new data.

The deen module calculates on the basis of thresholds you set and data you log. It chooses no school of law and pronounces no ruling on your situation. The content was reviewed by a fiqh-qualified reviewer before release; that's a quality measure and not religious authority we would possess.

• Nifas (postnatal bleeding) is not supported in this version.
• Edge cases around maghrib when counting fasting days are genuinely ambiguous without a timestamp; that's why the app asks you to confirm rather than deciding itself.
• The AI assistant answers no fiqh questions.

Where we link to external websites, we do so because the information there may be useful. We have no control over those websites and are not responsible for their content, their availability or how they handle your data.