Support

Why does the app ask for “Always” location?

Your exposure is estimated from the places you spend time. iOS lets the app log places while it’s closed only if location access is set to “Always”, with Precise Location on. With “While Using the App”, places are logged only while the app is open, so most of your day would be missing. Precise Location matters because approximate location can’t tell a clinic from the park next door.

Your location history is stored on your iPhone. Place coordinates are looked up with Apple Maps, and a rounded location goes to Apple Weather and the FCC. The Privacy Policy has the details.

To change it, go to Settings → Privacy & Security → Location Services → Exposure.

What do the scores mean?

Every score runs from 0 to 100.

• Readiness is your overall score. Immune readiness counts for 60%, and exposure headroom (100 minus your 7-day exposure) for 40%. 75 or more is Ready, 60–74 Mostly ready, 45–59 Take it easy, and under 45 Rest and recover.
• Exposure index estimates how much contagious illness you were around on one day. Under 25 is low, 25–49 moderate, 50–74 high, and 75 or more very high. 7-day exposure averages the last seven days, with recent days counting most.
• Immune readiness compares your vitals with your own baseline, where 75 means you’re at your usual. 80 or more is above baseline, 65–79 at baseline, 50–64 mild strain, and under 50 elevated strain.

How it works shows the exact formulas.

What’s a strain signal?

A strain signal means several of your core vitals have moved away from your usual at the same time. The core vitals are resting heart rate, heart rate variability, respiratory rate and sleeping wrist temperature. You get a strain signal when two of them are off for two days in a row, or three are off at once. The app shows “Your vitals show signs of strain” and sends a notification, at most once every three days. While it lasts, readiness is held at 40 or below.

Illness can cause this, but so can hard exercise, alcohol, a short night or stress. It isn’t a diagnosis. If you feel unwell, talk to a clinician.

What Health data does immune readiness need?

Immune readiness uses seven Apple Health signals: resting heart rate, heart rate variability, respiratory rate, sleeping wrist temperature, blood oxygen, sleep and steps. Most of them come from Apple Watch. To build your baseline, the app needs about two weeks of Apple Watch data, so wear your watch, including overnight. Until then, readiness assumes typical vitals.

If the score still doesn’t appear:

• Check that Exposure can read your Health data in Settings → Privacy & Security → Health → Exposure.
• Wear your watch to bed. Respiratory rate, wrist temperature and sleep are measured overnight.
• Some signals, such as wrist temperature and blood oxygen, need an Apple Watch model that measures them. The score uses whichever signals you have.

How do I start or cancel the free trial or subscription?

To start: open the app and tap Start tracking (or Track your own scores if you opened someone’s invite first). Eligible new subscribers get a 1-week free trial, then pay $39.99 a year. You can see your plan in the app under Settings → Subscription.

To cancel: on your iPhone, open Settings → your name → Subscriptions, choose Exposure Radar, and cancel. To avoid being charged, cancel at least 24 hours before your trial ends or your subscription renews. Deleting the app doesn’t cancel your subscription.

Refunds: Apple handles billing and refunds. You can request a refund at reportaproblem.apple.com.

How do I restore a purchase?

In the app, go to Settings → Subscription → Restore Purchases. Make sure you’re signed in with the same Apple Account you used to subscribe.

How do I delete my data?

• Everything: in the app, go to Settings → Delete all data. This clears the app’s data from your iPhone and deletes your shared status from the Family & Friends relay right away.
• Just your places: Settings → Clear location history.
• Deleting the app also removes its data from your iPhone. If you were sharing, stop sharing first. Otherwise your encrypted status stays on the relay until it’s deleted automatically, 60 days after its last update.

Your Apple Health data isn’t affected. The app only reads from Health and never writes to it.

How do I stop sharing with Family & Friends?

In the app, go to Settings → Family & Friends and stop sharing. Your encrypted status is deleted from the relay, and old invite links stop working. If you share again later, the app makes a new link.

Anyone with your link can see your scores, so if a link reaches the wrong person, stopping sharing fixes it.

What is demo mode?

Demo mode fills the app with sample places, vitals, scores and planned events, so you can look around before you give the app access to your location or Health data. It’s free.

Choose “Explore the demo first” when you first open the app, or turn Demo data on or off in Settings.

Why is the app called “Exposure” on my Home Screen?

The App Store lists it as Exposure Radar. On your Home Screen, the name is shortened to Exposure. It’s the same app.

Privacy questions

The Privacy Policy and the Consumer Health Data Privacy Policy explain what the app collects, what leaves your iPhone and how to delete it. For anything else, email support@human-memory.ai.