Cycle & Labs
Period, fertile window, and symptoms — plus hormonal lab results (HCG, Progesterone, Estradiol, TSH) in a professional medical interface.
- Period & fertility predictions
- 11 symptom categories
- Bloodwork & lab tracking
From cycle logic to pregnancy milestones and newborn care. One app that evolves with your body — built with clinical precision, not consumer fluff.


Most apps pick one stage and stay there. Perseya goes deep on all three — with the same calm interface and clinical precision throughout.
Period, fertile window, and symptoms — plus hormonal lab results (HCG, Progesterone, Estradiol, TSH) in a professional medical interface.
Track single or multiple pregnancies — twins and triplets as separate individuals — with dedicated biometrics and clinical counters.
Manage multiple child profiles with precise logging for sleep, feeding, diapers, and growth — each with its own theme.
Move beyond basic symptom tracking. Log bloodwork values and ultrasound biometrics — FHR, AFI, fetal measurements — with clinical units.
The first app that truly treats twins and triplets as individuals — separate kick counts, separate heart rates, separate growth.
Precision Kick Counter and Contraction Timer designed for medical accuracy — not gamified, not gimmicky.
Standardized growth tracking for weight, height, and head circumference — plotted against WHO reference percentiles.
A seamless Light and Dark mode experience, with eight personalized color themes for every child profile.
Localized for English, Spanish, French, German, Arabic, Hindi, Japanese, Korean, Mandarin, and more — with localized units.
Perseya never sells personal information to advertisers. Your health data is encrypted in transit and at rest, hosted in the EU, and yours to export or delete at any time.
Every new account starts with a full, automatic 30-day trial of the premium medical suite. No credit card surprises — we'll remind you before it ends.
Free on the App Store · 30-day Plus trial included.