Clue is a science-based period tracker that does its job reliably. The limitation is that your cycle data lives in a silo — disconnected from your sleep, mood, exercise, nutrition, and medications. tr8ck tracks the full hormonal health picture in one place.
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Clue is best for accurate menstrual cycle and period prediction. tr8ck is the better fit if you want cycle tracking plus 12 more health modules — sleep, mood, medication, nutrition, energy — with AI that shows how your cycle connects to everything else. Free covers 4 modules; Pro is $4.99/mo, Premium $6.99/mo adds AI insights.
Clue has published peer-reviewed research on menstrual health and built a reputation for accuracy over hype. Its symptom tracking taxonomy is detailed and its privacy stance is strong. The gap is that all that data stays in Clue — it can't connect to your sleep quality, what you ate, how you trained, or what medications you're taking.
| Feature | Clue ~$10/mo | tr8ck Free beta |
|---|---|---|
| Period & cycle prediction | ✓ Science-based, reliable | ✓ After 2-3 cycles of data |
| Symptom tracking | ✓ Detailed taxonomy | ✓ Yes, plus AI correlation |
| Contraception pill reminders | ✓ Specialized feature | – Medication module (broader) |
| Sleep quality tracking | ✗ No | ✓ Full module |
| Mood tracking | – Basic symptom log | ✓ Dedicated module |
| Nutrition tracking | ✗ No | ✓ Full module |
| Exercise performance tracking | ✗ No | ✓ Full module |
| GLP-1 medication tracking | ✗ No | ✓ Full module |
| AI cross-metric insights | ✗ No cross-analysis | ✓ Personalized AI |
| Price | ~$10/month premium | Free (beta) |
Hormonal shifts throughout your cycle affect sleep architecture, mood baseline, exercise capacity, and nutritional needs. Clue tracks the cycle. tr8ck tracks the cycle plus everything those hormones are affecting.
Many women experience disrupted sleep in the luteal phase. tr8ck tracks your sleep quality alongside cycle phase so you can see your personal pattern — not just the average.
Your follicular phase may bring higher energy and exercise capacity. Your luteal phase may bring fatigue. tr8ck lets you see whether your actual workout data follows this pattern.
PMS mood shifts are real for many women. tr8ck tracks your daily mood scores alongside cycle phase to show you your personal PMS severity pattern and whether interventions are helping.
Women on Ozempic, Wegovy, or Mounjaro sometimes experience changes in their menstrual cycle — including timing shifts and changes in flow or PMS severity. Neither Clue nor any other period tracker has a medication module to track this connection. tr8ck does — it tracks your GLP-1 dose alongside your cycle so you can see if there's a correlation.
Explore the cycle module →Track your cycle alongside sleep, mood, exercise, and medication in one app. Free during beta.
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