The core difference
Clue is a period and cycle tracking app — accurate predictions, symptom logging, and science-backed content. It tells you where you are in your cycle. Lunar is a cycle-aware ADHD task planner — it takes your cycle phase as a daily input and filters your task list so it reflects what you can actually do today.
Lunar uses your cycle phase to plan tasks. It doesn't track your period. See how a cycle-aware ADHD planner works.
The gap: Clue gives you the information. Lunar does something with it. For ADHD women who struggle most in the luteal phase, the missing link has always been 'now what do I change today?'
Feature comparison
| Feature | Clue | Lunar |
|---|---|---|
| Period and cycle tracking | Core feature | Lighter — phase + energy |
| Task management | No | Yes — core |
| Built for ADHD women | General audience | Yes |
| Cycle data → daily task list | Tracking only | Yes — filters tasks |
| Energy-based filter | No | Yes — 4 levels |
| AI task breakdown | No | Yes |
| Symptom logging | Comprehensive | Light — phase + energy only |
| Free tier | Generous | 14-day free trial, then subscription |
Who should choose Clue
- Detailed symptom logging matters to you (pain, mood, sleep, libido)
- You want precise cycle predictions with historical accuracy
- A calm, evidence-based, non-pink design is important
- You just need tracking — task management is handled elsewhere
Who should choose Lunar
- You want your cycle data to actually change what your day looks like
- You have ADHD and your luteal week significantly impacts your focus
- You need a task list that adapts to your phase, not just charts it
From insight to action
Many women use Clue for years, see the luteal phase arriving in the prediction, and still feel caught off guard by the cognitive crash. The insight doesn't prevent the problem because nothing connects it to a different action. Lunar's whole premise is that connection: cycle phase + energy level → filtered task list. The data doesn't sit in a chart. It changes what you see when you open the app.
Verdict
Choose Clue for deep, accurate cycle tracking with comprehensive symptom logging. Choose Lunar if you have ADHD and need your cycle awareness to translate directly into daily task management and planning. They can work together, or you can consolidate to Lunar if you don't need the full tracking depth.