Comparison

POTS Buddy vs Simple Stress Watch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

POTS Buddy

This Apple Watch app helps individuals with POTS and dysautonomia monitor their heart rate, log symptoms, and perform guided standing tests. It provides real-time data visualization, customizable alerts, and exportable reports for healthcare providers, prioritizing user privacy.

Highlights
  • Real-time heart rate monitoring
  • Guided POTS standing test
  • Customizable smart alerts
  • On-the-go symptom logging
  • Exportable charts and reports
  • Privacy-focused design
Features
Read full description

Meet your new heart health companion. POTS Buddy is the Apple Watch app built *with* the POTS and dysautonomia community in mind, not the other way around. Whether you're navigating daily symptom flares, preparing for a doctor's appointment, or just trying to understand what your heart is doing, POTS Buddy is right there on your wrist. **REAL-TIME HEART RATE MONITORING** Your Apple Watch already tracks your heart. POTS Buddy turns that data into something meaningful. See your heart rate, beat-to-beat changes (delta), and trend direction at a glance, color-coded so you always know where you stand without decoding numbers. **POTS STANDING TEST** The guided standing test walks you through a clinically-informed sit-to-stand protocol right from your wrist. Lie down for 5 minutes, then stand for 10. POTS Buddy records your heart rate at key intervals (1, 3, 5, and 10 minutes) and shows you the delta. Share the results with your cardiologist or keep them for your own records. **SMART ALERTS THAT ACTUALLY MAKE SENSE** Set your own alert thresholds based on your body, not generic defaults. POTS Buddy uses two alert levels: a gentle heads-up for elevated readings, and an urgent alert for extreme spikes. You're informed without being overwhelmed. Level 1 alerts quietly dismiss themselves after 60 seconds. Level 2 stays until you're ready to acknowledge it. **SYMPTOM LOGGING ON THE GO** Feeling dizzy? Chest fluttery? Log symptoms directly from your wrist in seconds using the Apple Watch Digital Crown. No fumbling with your phone, no interrupting your day. Every log is timestamped and ready when you need it. **CUSTOMIZABLE WATCH FACES** Make it yours. Choose from multiple themes, including a clean Time & Date only face for those moments when you just need a break from the numbers. Because sometimes the most helpful thing is *not* watching your heart rate. **EXPORTABLE CHARTS & REPORTS** See your heart rate trends visualized in beautiful charts, then export everything (graphs, CSVs and PDF reports) for your care team. Walk into your next appointment with data your doctor can actually use. **PRIVACY THAT ACTUALLY MEANS SOMETHING** We don't want your data. Seriously. Everything POTS Buddy collects stays on your device. No accounts, no cloud sync, no third-party sharing. Your health information is yours. Full stop. **DESIGNED FOR REAL LIFE WITH POTS** We know that anxiety about heart rate can *cause* heart rate spikes. POTS Buddy is designed to be reassuring, not alarming. Calm colors, supportive language, and customizable sensitivity mean the app works *for* you, not against you. --- **GOOD TO KNOW** To keep your heart rate on screen all day, the Apple Watch app runs like a workout, so Apple counts monitoring time as exercise. Your Exercise minutes and Move calories will be higher than your real activity while POTS Buddy is monitoring. POTS Buddy only reads your heart rate from Apple Health and never writes anything to it. You can stop monitoring any time from the watch Settings. The watch also uses noticeably more battery while monitoring. POTS Buddy works with iPhone (iOS 18.5 or later) and Apple Watch (Series 4 or later, watchOS 10.6 or later). *POTS Buddy is a wellness tool, not a medical device. Always consult your healthcare provider for medical advice.* --- **Your heart. Your data. Your choice.**

About

Simple Stress Watch

This app displays your heart rate variability as a simple recovery meter on your Apple Watch face. It uses data from Apple Health to show your recovery status with a colored zone, offering a quick, at-a-glance understanding of your well-being. Your personal data remains on your device for privacy.

Highlights
  • Heart rate variability recovery meter
  • Apple Watch face complications
  • Reads data from Apple Health
  • Personalized rolling baseline comparison
  • Colored recovery zones
  • Minimalist and simple design
  • On-device data storage
Features
Read full description

Simple Stress Watch shows your heart rate variability as a one-glance recovery meter on Apple Watch faces. It reads HRV from Apple Health, compares it to your personal rolling baseline, and renders a single number with a colored recovery zone: green above baseline, white around it, yellow below, red well below. Complications support every accessory family so you can put the meter on any watch face. On iPhone, a Lock Screen widget shows the same reading and meter at a glance, and you can view today’s HRV readings in the app or on your Home Screen with a chart widget. It’s designed to be extremely simple and minimal. Your data stays on your device: no accounts, no uploads, no analytics. Simple Stress Watch is a general wellness app and not a medical device. It does not diagnose, treat, cure, or prevent any condition. For medical concerns, please consult a healthcare professional.

Screenshots

POTS Buddy4 screens
Simple Stress Watch4 screens

Verdict

The call

The clearest difference is rating: POTS Buddy at 4.0 against Simple Stress Watch's 3.6. POTS Buddy also leads on update cadence (every 2 days vs weekly) and iOS requirement (18.5 vs 26.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

POTS Buddy holds the better App Store score, 4.0 against 3.6. Both are backed by a comparable volume of ratings — 10 and 8 respectively.

UpkeepUpdate frequency

POTS Buddy ships an update every 2 days, Simple Stress Watch weekly. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 7 level
POTS Buddy versus Simple Stress Watch: the parameters behind the verdict, then further details
ParameterPOTS BuddySimple Stress Watch
PriceFreeFree
Rating4.0 (10 ratings) — better3.6 (8 ratings)
Positive reviews50.0% of reviews—
Number of ratings10 — better8
Update frequencyEvery 2 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, Apple WatchiPhone, iPad, Apple Watch — better
Requires iOS18.5 — better26.0
Further details — not scored
Size5 MB8 MB
Age rating12+4+
DeveloperMEDUSA LABS L.L.C.Ganotis Holdings, Inc.

Customer experience

POTS Buddy

All ratings10 ratings
Positive70.0%
Neutral20.0%
Negative10.0%
Written reviews4 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

Simple Stress Watch

All ratings8 ratings
Positive62.5%
Neutral12.5%
Negative25.0%

In-app purchases

None

POTS Buddy

No in-app purchases

None

Simple Stress Watch

No in-app purchases

Questions

Is POTS Buddy free?
POTS Buddy is free to download, with no in-app purchases.
Is Simple Stress Watch free?
Simple Stress Watch is free to download, with no in-app purchases.
Which has better reviews, POTS Buddy or Simple Stress Watch?
POTS Buddy is rated higher. POTS Buddy averages 4.0 out of 5 from 10 ratings, while Simple Stress Watch averages 3.6 from 8 ratings.
Do POTS Buddy or Simple Stress Watch have ads?
Neither POTS Buddy nor Simple Stress Watch shows ads.
Which is updated more often, POTS Buddy or Simple Stress Watch?
POTS Buddy ships an update every 2 days, and Simple Stress Watch weekly. Most recently, POTS Buddy was updated on October 31, 2026 and Simple Stress Watch on November 9, 2026.

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