Ovalune: Ovulation Test Reader

Ovalune is an ovulation and fertility tracker with a free LH test reader. Photograph your ovulation test strip: Ovalune compares the test line (T) with the control line (C) and shows an estimate, Negative, Rising or Likely peak. Your period calendar, fertile days and estimated ovulation are in the same app, whether you are trying to conceive or simply following your cycle.

LH TEST READER, FREE
• Strip, cassette or midstream: frame the photo and Ovalune finds the T and C lines
• T/C ratio and a reading confidence level for every photo
• Negative, Rising or Likely peak, with a short explanation
• Move the T and C markers or correct the result by hand at any time
• Works with ovulation test strips of any brand (strips not included)
• Test photos are processed on your phone and kept in encrypted storage

YOUR LH TESTS, SIDE BY SIDE
Compare your tests day by day and follow your LH curve for each cycle. A logged peak updates your fertile window and estimated ovulation day, and LH reminders stop once the peak is logged.

OVULATION CALENDAR AND FERTILE DAYS
• Ovulation calculator based on your own cycles
• Likely fertile window and estimated ovulation, marked on your calendar
• "Why this date?": the cycles used, the method and what refines it
• Irregular cycles mode: the window widens instead of pretending to be exact

PERIOD TRACKER
• Period calendar with next period predictions and a reminder before it starts
• Daily log: flow, mood, symptoms, basal temperature, intercourse, pregnancy tests and notes
• Pill, medication and supplement reminders
• A coach that explains what your symptoms may mean in each phase, with a tip of the day

PREGNANCY MODE
A 40-week view by trimester, week-by-week pages, a weight curve, appointments and to-do lists. After a loss, a quiet path stops pregnancy and fertility notifications at once.

PRIVATE BY DESIGN
No account needed. Your entries stay on your phone in an encrypted database, with an optional app lock and a free CSV export.

FREE AND OVALUNE PLUS
Cycle tracking, the ovulation calendar, the LH test reader, your test history and CSV export are free, with ads. Ovalune Plus is an optional weekly subscription: no ads, cycle analysis (lengths, variations, regularity, trends), PDF reports, smart predictions with a confidence level and the coach's detailed plan.
Talk to a doctor: 1 free appointment every week with Ovalune Plus, after the free trial. A doctor from our team answers your questions about your cycle, ovulation and tests. This appointment does not replace your usual doctor or pregnancy care.

IMPORTANT
Ovalune is for adults aged 18 and over. Fertile days, ovulation dates and LH readings are estimates and may be wrong, especially with irregular cycles or PCOS. An LH peak does not prove ovulation: always follow your test's leaflet. Ovalune is not a contraceptive; do not use it for birth control. This app is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. Talk to a doctor about your health.

A rear camera is needed to photograph tests; everything else works without one.

Recent changes:
• LH test reader fixed: the T line is read on the dipped side (MAX arrows) and the C line next to the coloured handle, as on real strips. Results are now correct even when you confirm the photo frame without adjusting it.
• The fertile window now includes the day after ovulation.
• Plus: a free appointment with a doctor every week, once your trial has ended.