Yes — an app that predicts your mood based on your cycle exists, and it’s called Hormoscope. Instead of asking how you felt after the day has already happened, it forecasts how you’re likely to feel: a one-line daily reading plus five live 0–100 meters — Energy, Mood, Social Battery, Skin and Libido — each tuned to where you are in your cycle.
That’s the whole pitch, honestly. You already know your cycle moves your mood; what you’ve been missing is advance notice. Period apps are very good at telling you when — day 14, day 26, a circle on a calendar — and strangely quiet about the thing you actually feel: whether Thursday is a book-the-dinner day or a reschedule-everything-and-guard-the-couch day. Hormoscope answers that question every morning, before you’re out of bed.
How an app that predicts your mood based on your cycle actually works
The short version: your hormones run on a schedule, and mood rides along. Across a typical cycle, estrogen climbs through the follicular phase — energy and sociability tend to rise with it — peaks around ovulation, then hands the mic to progesterone in the luteal phase, where energy often dips, patience thins, and the last days before a period can feel like emotional turbulence you didn’t order.
Because that pattern repeats, it’s forecastable the way weather is. A forecast doesn’t claim to know your Tuesday with certainty — it says: based on where you are in your cycle, here’s what today will probably feel like. Hormoscope leans into the analogy on purpose. Phases get weather nicknames (Bloom days, Storm days), and the whole thing is framed honestly as wellness entertainment built on typical cycle patterns — a weather report for your hormones, not a diagnosis of your brain.
Forecast vs. log: most mood trackers only look backwards
Here’s the distinction that saves you three disappointing downloads. Almost every period mood tracker app is a diary. You tell it you felt irritable; it stores the fact that you felt irritable; months later it shows you a very pretty chart of past irritability. Useful — and entirely retrospective, like a weather service that only confirms it rained.
A forecast flips the direction. An app that tells you how you will feel during your cycle takes the day you’re on, applies what typical hormone patterns do on that day, and scores the day before it happens. Logging still matters — it’s how the forecast stays tuned to your actual cycle instead of a textbook one — but it’s the input, not the product.
How the cycle mood apps compare
These are all capable, actively maintained apps — the honest question is whether each one is built to look forward or back.
| App | Model | What you get about mood |
|---|---|---|
| Hormoscope | Forecast-first | Five 0–100 meters (energy, mood, social battery, skin, libido) plus a one-line daily reading — scored in advance for each day. Data stays on-device. |
| Moody Month | Forecast-leaning | Daily hormone-based wellness insights tailored to your cycle, alongside cycle and period tracking. |
| Clue | Log-first | Tracks 200+ experiences including mood; predicts period, fertile window and PMS timing from what you log. |
| Stardust | Insight + astrology | Daily insights framed around your cycle and moon phases, with predictions for period, PMS and moods. |
If you want deep symptom analytics, Clue does that job well. If you want moon symbolism with your cycle, Stardust does it charmingly. If the thing you’re actually missing is tell me how I’ll feel before I feel it — that’s the job Hormoscope was built around.
How to get a daily mood forecast with Hormoscope
- Download the app and skip the paperwork. Hormoscope is free to download, with no account and no sign-up — your cycle data never leaves your phone.
- Set up your cycle in about a minute. Enter your last period and rough cycle length. The period prediction and calendar are free forever, so you immediately know your cycle day and phase.
- Read today’s forecast. The Today screen opens with your cycle day, phase, one sharp daily reading, and the five meters. On a real Day 26 (late luteal), they read: Energy 21, Mood 31, Social Battery 43, Skin 15, Libido 29 — a day for declining invitations with confidence.
- Check The Briefing before you plan anything. It’s the week ahead as hormone weather, with a score for each day — so you schedule the presentation on a Bloom day and quietly move brunch off a Storm day.
- Log what actually happens. Tap in symptoms — cramps, headache, bloating, fatigue, acne, cravings — plus flow intensity, so patterns sharpen over time. (If any symptom ever feels severe rather than annoying, that’s a conversation for a clinician, not an app.)
- Meet your hormone type. Your cycle archetype sums up how your particular cycle tends to behave — which makes the forecast feel less like math and more like being known.
“Your standards are at an all-time high and your tolerance at an all-time low. Avoid the comments section.” — Hormoscope daily reading, Day 26 · Luteal
The forecast doesn’t just predict the mood — it validates it. As one in-app insight puts it: “Looks like late luteal turns the volume up. What you feel is real, it’s just amplified right now.” The daily reading, five meters and weekly Briefing come with Hormoscope Pro — $4.99/week or $29.99/year with a 3-day free trial — while the period calendar stays free forever.
FAQ: cycle mood forecasts
Is there an app that tells you how you will feel during your cycle?
Yes. Hormoscope forecasts how each day of your cycle is likely to feel — a one-line daily reading plus five 0–100 meters for energy, mood, social battery, skin and libido, all tuned to your cycle phase. It’s a forecast built on typical cycle patterns, not a medical assessment.
How accurate is a mood forecast based on your cycle?
Think weather forecast, not prophecy. Hormone patterns across a typical cycle are broadly predictable, so a forecast can tell you what a day will probably feel like — but no app can promise how any single day goes. Hormoscope is wellness entertainment grounded in typical cycle patterns, not a diagnostic tool.
Can I use Hormoscope as a PMS mood swings tracker?
Yes — log symptoms like cramps, fatigue, acne and cravings alongside the forecast, and use The Briefing to see your late-luteal window coming a week ahead, so the mood swing is an appointment instead of an ambush.
Is my mood and cycle data private?
Your cycle data never leaves your phone. Hormoscope stores everything on-device, requires no account or sign-up, and can be locked behind Face ID — the intimacy log always is.
If you searched for this page, you already suspected your mood has a schedule. It does — and now there’s a forecast for it.