Browse tools

Apple Watch owners after a daily stress read pay from £6.99 a week, and what works without a subscription is unknown.

Kenning's take

What it does

StressWatch turns an Apple Watch into a stress monitor by reading resting heart rate and heart rate variability (HRV) from Apple Health. It estimates the wearer's stress level through the day, sends an alert when it runs high, and shows stress and HRV trends by hour, day, month or year.

  • stress level from HRV and resting heart rate
  • alerts when stress is high
  • stress and HRV trends over time
  • watch face widgets and themes
  • sleep, movement and 'Bio Age' habits

Who it suits. Suits Apple Watch owners who want a simple read on daily stress and nudges to wind down.

Key facts

Made by
One Hundred Bad Ideas Limited
Launched
2023
Works on
iPhone, apple-watch
In the UK
Yes

Pricing

PlanPriceBilled
Weekly Subscription£6.99week
Monthly Subscription£9.99month
Yearly Subscription£29.99year

source

Ratings

FAQ

How does StressWatch measure stress?

It reads resting heart rate and heart rate variability from Apple Health and turns them into a stress estimate.

How much is StressWatch?

Free to download; the UK App Store lists subscriptions from £6.99 a week, £9.99 a month or £29.99 a year.

Does StressWatch need an Apple Watch?

Yes. It is built around Apple Watch heart data and runs on iPhone and Apple Watch.

Facts from the maker's own pages and the sources listed. Checked 2026-10-11.

Similar tools

Flo

The UK's most popular period and ovulation tracker, with machine-learning cycle predictions and a paid in-app Health Assistant.

Google Health (formerly Fitbit) with Health Coach

The app that replaced Fitbit in May 2026, with a paid Gemini-built coach that plans workouts and explains sleep data.

Cal AI

A calorie counter that estimates calories and macros from a photo of a meal.

Oura

A smart ring that tracks sleep, heart rate and temperature, with an AI chatbot called Advisor inside the paid app.