Eve

United Kingdom

Best period tracker app in the UK

What to look for in the UK — accuracy, GDPR-aligned privacy, and the right features.

Privacy under UK GDPR

In the UK, data protection law (UK GDPR) gives you rights over your personal data, including access and erasure. Favour apps that make these rights easy to exercise and are clear about lawful bases for processing your cycle data.

What to look for in a period tracker

  • Accuracy: predictions that improve as you log, and honest handling of irregular cycles
  • Privacy: transparent data practices and real control over your information
  • The right features: fertile-window tracking, symptom logging, and insights that match your goal
  • Usability: a fast, clean experience you’ll keep up with
  • Credibility: evidence-informed content, ideally clinician-reviewed

Match the app to your goal

General tracking, trying to conceive, managing PCOS, or navigating perimenopause all call for different features. Decide your primary goal first, then judge each app against it.

How Eve approaches it

Eve combines cycle prediction, symptom tracking, AI guidance from Ava, free beauty tools, and provider booking, with a privacy-conscious design and clinician-reviewed guides. Try the free tools before you sign up to get a feel for the experience.

Frequently asked questions

Does the NHS recommend a period tracker?

The NHS doesn’t endorse a specific app, but tracking your cycle and symptoms can make GP appointments more productive. Choose an app with accurate predictions and good privacy.

What’s the best period tracker app?

The best app is the one that fits your goal and that you trust with your data. Prioritise prediction accuracy, privacy, and features matched to whether you’re tracking, conceiving, or managing a condition.

Are free period trackers accurate?

Many are. Accuracy depends more on consistent logging and the prediction model than on price; cycles that are regular predict more accurately.

What’s the most private period tracker?

Look for transparent data practices, data minimisation, and clear user control. Privacy should weigh as heavily as features for sensitive cycle data.

See how Eve compares

The fastest way to judge fit is to try Eve’s free tools and clinician-reviewed guides — then sign up if it’s right for you.

Try Eve free →