Guide
Yes. On iPhone alone, Kampa shows your walking speed, steps and steadiness, runs six short movement checks, uses the doses you log to show how your movement changes around a dose, and reads sleep and heart-rate variability from Apple Health. What you will not have is the all-day tremor and dyskinesia record - that comes only from an Apple Watch.

The Review screen says iPhone-only, so you always know which mode you are in.
Passive, all-day tremor and dyskinesia sensing from Apple's Movement Disorder API. Any Apple Watch from Series 4 on watchOS 10 works, including a Series 5 or a first-generation SE. If you add one later, it joins the same timeline - nothing starts over.
There is no schedule and nothing to fall behind on. A handful of checks spread over time is worth more than one taken carefully, and Kampa asks for the check and the moment your record has least of.
More guides: Track tremor and dyskinesia all day with an Apple Watch · See how long each dose holds, and the gaps between doses · Keep medication, meals and movement on one timeline · See whether protein near a dose changes how it works for you · Turn weeks of tracking into a report for your appointment · Keep a record of the weeks your neurologist never sees · What an app records that a diary cannot - and the reverse · Kampa is free, with no subscription or account · Start simple: see how your symptoms change through the day · Log constipation, fatigue, mood and 14 more in one tap · See whether your sleep moves your next-day tremor · See whether each kind of exercise moves your tremor and walking · Log doses with one tap, and meals and symptoms by voice · Log pump settings and see your tremor within each one · Questions to ask before you choose a tracking app
Kampa is free on the App Store, with no subscription and no account to create. Questions? info@kampa.health reaches the people who build it.
Kampa is a personal tracking tool, not a medical device. It does not diagnose, treat or give medical advice, and it never suggests a change to your medication.