A Truly Private Symptom Tracker: No Account or Health-Data Servers

What “private” means in Trace Health, concretely

• No account required. Open the app and start logging. No email, no phone number, no sign-in. Ever.
• Local-only storage. Your symptom and lifestyle logs live in your iPhone's storage, protected by your device passcode or Face ID and iOS encryption.
• No servers. Trace Health has no backend that stores health data. There is nothing to hack, subpoena or sell.
• No health-data analytics. We never see what you log. Your symptoms are yours alone.
• Your export, your choice. PDF doctor reports and Apple Health sync happen only when you explicitly tap them.
• You control backup. The only optional backup is to your own personal Apple iCloud account, off by default, controlled by you, and never visible to us.

What people say

Rated 4.8 out of 5 from 62+ ratings on the App Store.

• Chronic conditions must have!, “Absolutely love, love, love. Exactly what I needed to track my symptoms. LOVE it doesn’t collect data and syncs with apple health. I want to log to apple health, but it is cumbersome. This solves that and then some!” (alouusea, Iceland, App Store)
• Very useful, “This app is wonderful. You can add symptoms and rearrange them as you like. The best part: your sensitive health data is only stored on your own device.” (WhoKnowsTypo, Netherlands, App Store)
• Very useful and private, “The app is simple, fun, and life-changing for me. I chose it mainly so that my data is never shared, and because it’s the easiest to use. I used to write my symptoms down in a notebook; now I do it every day on the app to track how they change. Being able to also log my everyday activities to see their influence is very handy. I recommend it!” (Solex94, France, App Store)
• The app I was looking for, “I highly recommend this app, no annoying ads etc, straight to the point of keeping a track of health symptoms, the best health monitor app I have ever used.” (Trisroy-Best, United Kingdom, App Store)
• Exactly what I was looking for, “Out of all the symptom tracker apps, I found this to be the easiest and most straightforward. It “writes” to the health app, which is exactly what I wanted. All the others only “read” parts of the health app data, and didn’t truly write any data back. This helps me visualize my chronic symptoms soooo well.” (EB1700, United States, App Store)
• Really good and simple symptom tracker, “I’m really happy with Trace. It makes it easy and quick to record symptoms, pain and how they change over time, without it becoming a hassle or hard to keep up with. The app is intuitive and clear, and I especially like being able to get a better overview of how my symptoms are developing. An app I actually end up using day to day. ⭐️⭐️⭐️⭐️⭐️” (LilandAndreas, Denmark, App Store)

Why privacy matters for symptom data

A symptom diary is among the most sensitive data you can create. It can reveal a chronic illness, a mental-health condition, a reproductive-health situation or a disability, things you may not have shared with your employer, your insurer or even your family.

Most health apps upload this data to company-controlled servers. Even with good intentions, server-side health data can be breached, acquired in a company sale, requested by third parties, or used for analytics. Trace Health keeps health data on your iPhone by default, with optional private iCloud sync.

Private doesn't mean limited

Trace Health processes health data on-device and still does the full job of a modern symptom tracker:

• Log any of 100+ symptoms in one tap, with severity levels (mild, moderate, severe).
• See how each symptom evolves over days, weeks, months and the last year with interactive charts.
• Track daily lifestyle factors, food, sleep, stress, exercise, medications, and discover what triggers or relieves your symptoms.
• Generate doctor-ready PDF reports for appointments.
• Write symptoms into Apple Health as real Health entries, and import your workouts and sleep from it (opt-in, Premium). Imported data stays on your iPhone like everything else.
• Track a family member with multiple profiles.
• Use it in 9 languages.

Trace Health vs. cloud-based symptom trackers: privacy comparison

"Typical cloud-based tracker" describes the common account-plus-cloud architecture used by most symptom tracking apps; check any specific app's privacy policy for its details.

Trace Health vs. offline symptom journals

Trace Health is not the only private option. A growing number of offline symptom journals also work without an account and keep your entries on your device, and if a simple private notebook is all you need, one of them is a fine choice. Trace Health shares that model (no account, nothing on a health-data server) and adds what makes daily tracking easier and more useful:

"Typical offline symptom journal" describes the common no-account, on-device design; features differ from app to app, so check any specific app's App Store listing. Trace Health details from the app, October 2026.

In short: the same privacy, plus logging from your wrist and your Lock Screen, symptoms written into Apple Health, ready-made setups for 34 conditions, a report your doctor can read in two minutes, and an app that speaks your language. See also symptom trackers for Apple Watch and what is free in Trace Health.

Frequently asked questions

Is Trace Health really anonymous?

Yes, by architecture. Trace Health never asks who you are: no account, no email, no sign-in. Health entries stay on your device by default, with optional private iCloud sync. There is no Trace Health server-side record of you or your symptoms.

Does Trace Health require an account or email to use?

No. You download it, open it, and start logging. There is no sign-up screen anywhere in the app.

Can I use Trace Health completely offline?

Yes. Because all data is stored locally, every feature, logging, charts, insights, PDF reports, works without an internet connection.

What happens to my data if I delete the app?

It is deleted with the app. There is no copy on any server. If you enabled the optional backup to your own Apple iCloud account, that copy remains under your control in iCloud until you remove it.

If nothing is uploaded, how do I share my history with my doctor?

You generate a PDF report inside the app, a clear summary of frequency, severity and patterns, and hand it over or send it yourself. Sharing is always an explicit action you take, never something that happens in the background.

Does the Apple Watch app send my health data anywhere?

No. Trace Health on Apple Watch exchanges your logs with your iPhone through Apple's WatchConnectivity framework, directly between your paired devices. There is no account and no Trace Health server in between. The watch keeps only what it needs to display, and deleting the app from the watch removes it.

Is my mood data private too?

Yes. Your daily moods and notes stay on your iPhone like everything else in Trace Health, with an optional backup to your own private iCloud, and the mood insights are worked out on the device. Your mood only goes to Apple Health if you turn on Export, and your notes are never exported.

How is Trace Health different from an offline symptom journal?

Both work without an account and keep your health data on your device. Trace Health adds one-tap logging from Home Screen widgets, the Lock Screen and an Apple Watch app, writes your symptoms, mood and periods into Apple Health instead of only reading from it, comes with ready-made setups for 34 conditions and 100+ symptoms, finds triggers in the daily activities you log, makes a doctor-ready PDF report, and is fully available in nine languages. If a simple private notebook is all you need, an offline journal is a fine choice too.

Is there a private symptom tracker with an Apple Watch app?

Yes. Trace Health needs no account, keeps your health data on your iPhone by default and has a native Apple Watch app: one tap on the wrist logs a symptom, and the watch talks to your iPhone directly, with no Trace Health server in between. The watch app is part of Premium and needs watchOS 11 or later.