Most "best app" lists are affiliate pages. This one is written by the founder of one of the apps on it, so read it with that in mind — but the comparisons are honest, and for several people reading this the right answer is not my app.
Almost every period tracker is built on an assumption: that your cycle is roughly 28 days, and that last month predicts next month. For most people that works. For PCOS it often falls apart — cycles can run 35, 60, 90 days or skip entirely, and a calendar-based prediction has very little to work with.
So the first question to ask any app is not "does it track symptoms" — they all do. It is: what does it do when my cycle is unpredictable? Everything else is preference.
Best for: content and community.
The largest user base of any cycle app, an enormous library of articles, and an in-app assistant. If you want something free with a lot to read and a big community behind it, this is the default choice, and there is nothing wrong with the default choice.
Worth knowing: it is free because it monetises at scale. If where your health data goes matters to you, read the privacy policy properly rather than taking anyone's summary — including mine.
Best for: an evidence-led approach.
Clean, calm, science-forward, and generally well regarded on privacy. Good general cycle tracking with a serious tone and no gamification.
Worth knowing: it is a cycle tracker first. If your main problem is working out which foods or habits line up with your symptoms, that is not really what it is built to answer.
Best for: trustworthy PCOS education, free.
Built by researchers at Monash University, the group behind the international evidence-based PCOS guideline. If you want to understand PCOS from a source with genuine clinical authority, start here — and it costs nothing.
Worth knowing: it is strongest as an education and appointment-prep tool rather than a daily tracker.
Best for: tracking several conditions at once.
Not PCOS-specific — it is a general symptom tracker for chronic conditions, and it is very good at correlation. If you are managing PCOS alongside something else, its flexibility is a real advantage.
Worth knowing: that flexibility means setup work. Nothing is pre-configured for PCOS.
Best for: finding patterns, and irregular cycles specifically.
This is mine, so treat the description as what it is. It was built around two things. First, predictions come from your logged cycles rather than a 28-day assumption — so if your normal is 44 days, day 41 is shown as on track rather than flagged as late. Second, it runs a statistical pass over your own logs to surface which foods, sleep and stress patterns line up with which symptoms, and it only shows the ones it is confident about.
It also keeps everything on the device — no account, no cloud — and produces a report you can take to an appointment.
Worth knowing: it is paid, with no free tier. If you want to try a tracker without committing, one of the free options above is the more sensible starting point.
Whichever you pick, the one that works is the one you actually open. An app you log in for ten seconds a day beats a better app you abandon in a fortnight.
Patterns need something to correlate. Symptoms alone rarely reveal much — it is symptoms plus context that shows you anything. If you log nothing else, log these:
Two weeks of that is usually enough for the first pattern to appear. If you want a starting point on the food side, our PCOS recipe library is built around steady blood sugar, and the exercise guides explain why each movement helps insulin sensitivity.
General wellness information, not medical or dietetic advice. Nothing here diagnoses, treats or cures PCOS. Nutrition figures are per-serving estimates. Check with your doctor or a registered dietitian before making significant changes — especially if you are pregnant, breastfeeding, diabetic or managing a food allergy.