Pay once. Keep it forever. Hoo-Ha is a one-time $14.99 — no monthly fee, no annual renewal, no "premium" tier hiding the features you actually want.
The popular period apps are "freemium": a free tier that's funded by ads, data, and a recurring subscription for the good features. Over a few years, a $9.99/month or $39.99/year subscription quietly becomes far more expensive than any app should be — and many of those apps are also monetizing your data in the background.
A one-time price isn't just cheaper — it aligns the incentives. Because you pay for the app directly, Hoo-Ha has no reason to monetize your data. In fact, it can't: the app is 100% offline, with no account and no servers, so your cycle data never leaves your iPhone.