The best Clue alternatives, compared

Why people look for a Clue alternative

Clue is a solid tracker with a 4.8 rating from about 407,000 reviews on the App Store. People still leave it, usually for one of three reasons.

The good parts cost $39.99 a year

The free app tracks your period. Clue Plus, at $9.99 a month or $39.99 a year in the US, adds what the listing calls "deeper analysis, advanced predictions, and personalized insights". If you mainly opened Clue for those, the price is the question.

You want to know exactly where your data goes

Clue's privacy policy says the health data you track is never shared with or sold to advertisers, and that everything sits on servers in the European Union. If you allow it in your privacy settings, it shares app events such as installs and Clue Plus subscriptions with ad networks like Meta and TikTok through a company called Adjust. The App Store label lists identifiers as data used to track you.

Your cycles are changing

Clue has a perimenopause mode. In your 40s you may also want hot flashes, sleep and medication on the same page, and a report to take to your doctor, which is a different kind of app.

How we picked

We didn't score or star anything. For each app we read its US App Store and Google Play listings and the company's own privacy and help pages, and compared what someone leaving Clue would ask:

• Price. The subscription, and what still works if you never pay.
• Data. The privacy label, whether you need an account, and where your logs live.
• Changing cycles. Any support for perimenopause, since predictions get harder when cycles stretch.
• Platforms. iPhone, Android, or both.

We didn't install the apps or buy paid plans, so what sits behind each paywall is as the company describes it. Store privacy labels are written by the developer, and Apple doesn't check them.

The apps, one by one

1. Her Good Days: the best Clue alternative overall

Best for: anyone who wants one free app from regular periods through pregnancy to perimenopause and menopause.

Her Good Days is free, with no subscription and no third-party ads; an optional shop of wellness products pays for it. Use it in Private mode and you don't need an account: your logs stay on your phone in an encrypted database. Sign in and they sync to your next phone.

• Cycles. A period calendar, a chart of your cycle lengths, your next period shown as a range, and ovulation tests with the time you took them.
• Trying to conceive. Estimated fertile days from your past cycles, labeled Not birth control (never in teen mode).
• Symptoms. Hot flashes, night sweats, brain fog, cramps and your own symptoms, each mild, moderate or severe, with the time, next to sleep and mood.
• Changing cycles. Cycle gaps of 60 days or more, and hot flashes this week against last week.
• For your doctor. A weekly report, and a doctor report PDF for the dates you pick, with your questions on it.
• Beyond cycles. A pregnancy mode with kick counter and contraction timer, a food diary, workouts with a trainer, and steps, sleep and weight from Apple Health or Health Connect.

See period tracking for what it logs, and how it handles your data.

2. Flo: the closest feature match

Best for: people who liked Clue's features and want the same breadth somewhere else.

Flo predicts periods and fertile days, logs symptoms, and has modes for getting pregnant and pregnancy, plus a Perimenopause Score and a Menopause Timeline. Premium adds daily insights, a Symptom Checker, a Health Assistant and deeper pregnancy tools (App Store). The listing shows prices from $1.99 to $59.99 without saying which plan each one is.

Privacy is the part to read closely. In 2021 the FTC finalized an order after alleging Flo had shared health data with marketing and analytics firms, including Facebook and Google. Flo now offers Anonymous Mode, which doesn't ask for your name, email or Apple ID, and says it has never sold personal data. Its App Store label lists purchases, location, identifiers and usage data as used to track you.

Leaving Flo too? See Flo alternatives.

3. Apple Health Cycle Tracking: free, already on your iPhone

Best for: iPhone owners who want private tracking without another app.

• Log periods, symptoms, spotting and temperature; get period and fertile-window estimates
• Alerts for irregular, infrequent or long periods, and for users 40 and over, a note that this may suggest perimenopause
• Set a perimenopause or menopause stage
• Export the last 12 months as a PDF for your doctor

With two-factor authentication, cycle data synced to iCloud is end-to-end encrypted, so Apple can't read it (Apple support). The limit is plain: there's no Android version.

4. drip: everything stays on the phone

Best for: anyone whose first question is where the data goes.

drip is free and open source, made by the drip collective, mostly as unpaid volunteer work. Its site says everything you enter stays on your device, and its App Store label reads "Data Not Collected". You can track just your period, or bleeding, mood, pain, sex and temperature with the symptothermal method for fertility. Your data exports as a CSV file you keep yourself.

It's plain and has no articles. Its FAQ also says it skips cycles longer than 99 days, which can trip up people in perimenopause.

5. Natural Cycles: if birth control is why you track

Best for: people who want hormone-free contraception and will take a reading every morning.

The only app here cleared by the FDA as birth control. It reads your temperature from a thermometer, its NC° Band, an Oura Ring, WHOOP, some Garmin watches or an Apple Watch Series 8 or newer. Modes cover planning and following a pregnancy, postpartum and perimenopause (App Store).

Pricing: $21.99 a month or $149.99 a year, and the listing says core features need a plan. It's rated 16+.

6. Stardust: cycles with a horoscope

Best for: people who enjoy the astrology side.

Stardust pairs period tracking with a moon calendar, zodiac cards and pregnancy and postpartum modes. Plans start at $6.99 a month or $29.99 a year (App Store). Its label lists purchases, identifiers and usage data as used to track you. In 2022 TechCrunch reported that Stardust removed an end-to-end encryption claim from its privacy policy after questions about it. The listing doesn't mention perimenopause.

Which Clue alternative is best for you?

• You want periods, symptoms, sleep and a doctor report free in one app, now and as your cycles change: Her Good Days.
• You want Clue's exact features from a different company: Flo.
• You have an iPhone and want to pay nothing: Apple Health.
• You want nothing on anyone's server, on iPhone or Android: drip.
• You track to avoid pregnancy without hormones: Natural Cycles.
• You like the moon and the stars: Stardust.

For the full head-to-head, see Her Good Days vs Clue.