What a stress tracker app actually measures
No sensor reads stress directly. A stress tracker app infers it from body signals your watch records:
- Heart rate above your usual for the activity.
- Heart rate variability (HRV) lower than your normal.
- Sleep shorter or more broken than usual.
- What you log: mood, notes, State of Mind entries.
Score apps vs context apps
| Score-based stress tracking app | Context-based (70 BPM) | |
|---|---|---|
| Answer | "Your stress is high today" | "Your heart rate was high through the 2 pm review" |
| Data | HRV, heart rate, sleep | Heart rate plus your calendar |
| Best for | Daily check-ins | Finding what to change |
Anxiety tracking app: what it can and cannot do
An anxiety tracking app can help you notice patterns: the situations, times and days when your body is most activated, and how that changes after you make changes. It cannot diagnose anxiety, and a calm-looking chart does not mean you are fine. Many people find it most useful alongside a therapist or doctor, as a record to talk through rather than a verdict.
How 70 BPM tracks stress
70 BPM lays the heart rate your Apple Watch already recorded over your calendar. Every rise has a name: the meeting, the commute, the evening call. Tap an event to see the samples inside it. There is no score to chase, nothing to log, no account, and nothing is uploaded. It is free.
Not medical advice. 70 BPM shows heart-rate data your watch has already written to Apple Health. It is not a medical device and cannot diagnose anything, including anxiety. If anxiety or a racing heart is affecting your life, talk to a doctor.