Best Free Stress Monitor Apps

250+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated September 2026

Looking for free free stress monitor apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Free Stress Monitor Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1StressScan - check your stressStressScan - check your stressFree3.7★ (214)YesNoSep 2026
2Instant Heart Rate: HR MonitorInstant Heart Rate: HR MonitorFree4.9★ (229K)YesYesSep 2026
3Stress Monitor for WatchStress Monitor for WatchFree4.5★ (9.1K)NoYesSep 2026
4Furry: stress monitor watchFurry: stress monitor watchFree4.2★ (33)NoNoSep 2026
5InnerFlow: Stress MonitorInnerFlow: Stress MonitorFreeNoYesJun 2026
6StressLess: AI Stress TrackerStressLess: AI Stress TrackerFree4.6★ (49)NoYesSep 2026
7Colorange - HRV Stress MonitorColorange - HRV Stress MonitorFreeNoYesAug 2026
8Heart Rate・Stress Tracker AppHeart Rate・Stress Tracker AppFreeYesYesMay 2026

Top Picks for Free Stress Monitor

3.7😞(214 ratings)
FreeAds
StressScan - check your stress screenshot 1
StressScan - check your stress screenshot 2
StressScan - check your stress screenshot 3
StressScan - check your stress screenshot 4
StressScan - check your stress screenshot 5

Measure your mental and physical stress levels using your smartphone's camera. Analyze heart rate changes to understand your autonomic nervous system balance and receive a stress score from 1 to 100. Track stress over time and manage your well-being.

What We Love

  • 💡 Camera-based heart rate measurement
  • 👍 Easy to use for some users
  • 📈 Useful for tracking heart rate trends
  • 🤔 Can help identify potential health issues
  • 📊 Good for record-keeping of subjective stress

Room to Improve

  • 📉 Inaccurate stress measurements
  • ⚠️ Inconsistent readings
  • ❌ Does not work for many users
  • 📱 Camera scanning issues
  • 🤔 Unclear measurement methodology
  • 😠 Frustrating login/registration issues
  • 💸 Unwanted ads
  • 🔥 Device overheating during measurement
Instant Heart Rate: HR Monitor#2

Instant Heart Rate: HR Monitor by Bodymatter, Inc.

Pulse Tracker & Stress Test
Strong Contender
💪 Health & Fitness
4.9😐(229K ratings)
FreeAdsIn-App Purchases
Instant Heart Rate: HR Monitor screenshot 1
Instant Heart Rate: HR Monitor screenshot 2
Instant Heart Rate: HR Monitor screenshot 3
Instant Heart Rate: HR Monitor screenshot 4
Instant Heart Rate: HR Monitor screenshot 5
Instant Heart Rate: HR Monitor screenshot 6

Measure your heart rate and stress levels accurately using your phone's camera. Track trends, view pulse waveforms, and utilize a StandUp test for fitness insights. Integrates with Apple Health.

What We Love

  • 🚀 Accurate heart rate measurements
  • 📊 Helpful for monitoring heart health
  • 💾 Saves and tracks heart rate history
  • 🆓 Free version available

Room to Improve

  • 🔒 Requires account creation to use
  • 💰 Expensive subscription for full features
  • 📢 Intrusive ads in free version
  • 🤖 Inconsistent or inaccurate readings
Stress Monitor for Watch#3

Stress Monitor for Watch by ActiveAce

HRV Tracker & Health Insights
Worth Considering
💪 Health & Fitness
4.5😐(9.1K ratings)
FreeIn-App Purchases
Stress Monitor for Watch screenshot 1
Stress Monitor for Watch screenshot 2
Stress Monitor for Watch screenshot 3
Stress Monitor for Watch screenshot 4
Stress Monitor for Watch screenshot 5
Stress Monitor for Watch screenshot 6

Monitor your stress, activity, and sleep using your Apple Watch data. Gain insights into your body's signals like HRV and resting heart rate to understand what impacts your well-being. Receive personalized recommendations for better mental, emotional, and physical performance.

What We Love

  • 🚀 Accurate stress monitoring
  • 👍 Helpful for managing chronic conditions
  • 💡 Provides useful insights and data
  • 👍 Good user interface and design
  • 👍 Appreciated for Apple Watch integration

Room to Improve

  • 🐛 Inconsistent or inaccurate readings
  • 💰 Expensive subscription model
  • 🔒 Privacy concerns around data collection
  • 💤 Doesn't continuously monitor stress
  • 🤔 Confusing or unclear notifications

More Free Stress Monitor apps to explore

FAQ about Free Stress Monitor

What are the best free stress monitor apps for iPhone?
StressScan - check your stress tops our free stress monitor apps ranking as of September 2026, with a 3.7-star average from 214 App Store ratings, and it's free to download.
StressScan - check your stress shows ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ free stress monitor apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
StressScan analyzes changes in your heart rate by having you place your finger over your smartphone's camera for two minutes. It scientifically measures your mental and physical stress levels on a scale of 1 to 100 based on the balance of your autonomic nervous system.
The app uses heart rate variability analysis, a medically recognized technology. By analyzing the waveform of your heartbeat at the fingertip, it assesses the balance of your autonomic nervous system, which can be disordered by fatigue and stress.