Clue alternatives: period trackers worth a look
If Clue isn't quite right, the best alternative depends on the gap. Apple Cycle Tracking is free and built into iPhone. Flo has more content and pregnancy features. Lulu focuses on mood patterns, with no account and data kept on your iPhone. Natural Cycles is cleared by the FDA as contraception. Stardust adds astrology and friend syncing.
First: what Clue does well
Clue is a thoughtful app. It's science-led, with research partnerships with universities, an inclusive voice, more than 200 trackable symptoms and experiences, symptom forecasts and modes for conceiving, pregnancy and perimenopause. As a Berlin company it works under GDPR, and it says it never sells health data. If you love detail and evidence, Clue is a strong choice.
People look for a Clue alternative for different reasons: they want something simpler, something free without upsells, a mood-focused view, partner sharing, or an app that doesn't need an account at all.
Clue alternatives compared
Facts from each company's App Store listing or website, checked October 2026.
| App | What it does differently from Clue | Account? | Price model |
|---|---|---|---|
| Apple Cycle Tracking | Built in; wrist-temperature ovulation estimates on Apple Watch Series 8+; cycle deviation alerts | Apple ID | Free |
| Flo | Bigger content library, Pregnancy Mode, Flo for Partners, anonymous chats | Yes (Anonymous Mode available) | Free plus Flo Premium |
| Lulu | Mood forecast by cycle day, partner sync that never shows symptoms, doctor-ready PMS chart | No | 3-day free trial, then yearly Lulu Plus |
| Natural Cycles | Cleared by the FDA as hormone-free contraception; uses temperature from a thermometer or wearable | Yes | Paid subscription |
| Stardust | Moon phases, astrology, friend and partner syncing | Yes | Free plus subscription |
Which one fits you
"Clue is too much." Try Apple Cycle Tracking
If you only want to log periods and see predictions, Apple's free Cycle Tracking in the Health app is clean and private. With an Apple Watch Series 8 or later, it adds retrospective ovulation estimates from wrist temperature.
"I want my mood, not 200 options." Try Lulu
Lulu asks one question a day: how do you feel? After a couple of cycles it shows how you usually feel on each cycle day and nudges you before harder days. It also predicts your period, fertile window and ovulation, imports Apple Watch wrist temperature, works with Apple Health, and has perimenopause mode. No account; cycle data stays on your iPhone. See Lulu vs Clue.
"I want everything in one place." Try Flo
Flo covers periods, pregnancy and perimenopause with a huge library and partner sharing. Read about its 2021 FTC order before deciding. See Lulu vs Flo.
"I need contraception." Try Natural Cycles
Natural Cycles is the only app on this list cleared as a method of birth control. Clue, Lulu, Flo, Stardust and Apple's Cycle Tracking are not contraception. See Lulu vs Natural Cycles.
"I want it to be fun." Stardust
Stardust is playful and social. Mozilla's 2026 research found it sharing symptom and reproductive details with an analytics firm, tied to an identifier; Stardust says the firm is contractually barred from selling or reusing it. Weigh that up.
Switching tips
- Note your last 3 to 6 period start dates before you switch. A new app learns your cycle faster with history.
- Check whether your new app works with Apple Health, so data from one place can flow to the other.
- If you're leaving an account-based app, delete your account from inside the app, not just the app icon.
- Give any new tracker two or three cycles before judging its predictions.
On each app's App Store page, scroll to "App Privacy". Clue's US listing names Identifiers under "Data Used to Track You"; compare that with any alternative you're considering.
Frequently asked questions
What app is similar to Clue?
Flo is the closest in scope. Apple Cycle Tracking is the simplest free option on iPhone. Lulu is a mood-focused alternative with no account.
Is Clue still free?
Clue has a free version with core tracking, plus a paid Clue Plus subscription for extras like perimenopause mode.
Is there a Clue alternative without an account?
Yes. Lulu needs no account and keeps cycle data on your iPhone. Apple's Cycle Tracking uses your Apple ID but stores Health data on your device.
Which period app is best for privacy?
Look for apps where the company never receives your cycle data, and check the App Store privacy label. Our private period tracker guide compares options.
Sources
- Clue Period & Cycle Tracker on the App Store (US)
- Clue: Privacy
- Apple Support: Track your period with Cycle Tracking
- TechCrunch: Stardust shares users' health data with analytics firm, says Mozilla research (July 2026)
- STAT: FDA clears Natural Cycles app as contraception (Aug 2018)
This page is for information only and isn鈥檛 medical advice. If something worries you, please talk to a doctor.
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