Looking for a Period Calendar alternative?
Period Calendar (Simple Design) is one of the most-installed period apps anywhere, with a dense calendar, reminders and a long list of things you can log. MoodSwings is a different shape of app — and this page is an honest comparison rather than a pitch, so the table starts with what Period Calendar does better.
Period Calendar vs MoodSwings, side by side
| Period Calendar | MoodSwings | |
|---|---|---|
| Known for | Period Calendar (Simple Design) is one of the most-installed period apps anywhere, with a dense calendar, reminders and a long list of things you can log. | A calm period tracker built around how you actually feel: next-period and cycle-phase estimates, mood and symptom logging in a few taps, PMS patterns over time, and optional partner sharing. |
| Genuinely better at | Sheer reach and a free tier that already does almost everything — plus years of small refinements aimed at a very large audience. | MoodSwings logs far less and reads it back to you: the link between your cycle and your mood, in one screen, with an optional partner view. |
| Day to day it feels like | A full period-tracking app: calendar, logging, predictions and reading material, with cycle tracking as the main event. | One screen, a few taps a day. Dates, mood and symptoms in the same place — and if you want, a partner view where you choose what is visible. |
Stay with Period Calendar if…
…the free tier already covers you and you like having every field available.
We would rather you kept an app that fits than switched and stopped logging after a fortnight. A half-used tracker cannot show you a pattern.
What you get if you do switch
- Predictions that learn your pattern. Next-period, cycle-day and cycle-phase estimates that adjust as you log, instead of assuming a textbook 28 days.
- Mood and symptoms next to your dates. Cramps, bloating, sleep, energy, cravings and how you felt — logged in a few taps, kept as history.
- Your PMS pattern, over months. The days before your period stop being a surprise once you can see them repeating.
- Ovulation and fertile-window estimates when you want them, from your own logged cycles.
- Optional partner sharing, on your terms. You choose whether to share at all and what a partner can see — it is off until you turn it on.
More alternatives
Longer head-to-head guides
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Stardust leans astrological. A more grounded, relationship-aware option.
MoodSwings is a wellness tracker, not a medical device — predictions are estimates, not guarantees, and nothing here is medical advice. Period Calendar and other product names belong to their respective owners; this comparison reflects each app's publicly described focus and our own honest read of it. We deliberately quote no ratings, review counts or prices for other apps, because those change — check the App Store for current details.