Set a BPM with the dial or step buttons, tap TAP to find a tempo, select a time signature, and press Play. Tap any beat in the accent row to cycle it between accent, click, and mute.
The Lifetime unlock is a one-time purchase, not a subscription. It adds unlimited presets, premium sounds, Vaporwave, and animated visualizers. If you previously bought it, open Settings → Unlock Lifetime → Restore Purchases while signed in to the same Apple Account.