Comparison

Cardiogram | Track HR, POTS vs GymTimer

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

Head to head
About

Cardiogram | Track HR, POTS

Monitor your heart rate, log POTS episodes, and track symptoms like dizziness and fatigue. Identify triggers and gain insights into your health trends. Generate shareable reports for your healthcare provider.

Highlights
  • Heart rate tracking and history
  • POTS episode logging
  • Symptom tracking
  • Trigger tracking
  • Heart rate trends and insights
  • Printable and shareable reports
Features
Read full description

Cardiogram is a heart rate and POTS tracking app designed to help users record heart rate data, symptoms, episodes, and triggers. Features: * Heart rate tracking and history * POTS (Postural Orthostatic Tachycardia Syndrome) episode logging * Symptom tracking, including dizziness, palpitations, fatigue, lightheadedness, and brain fog * Trigger tracking, including standing, exercise, heat, stress, dehydration, and sleep * Heart rate trends and insights * Printable and shareable reports * Long-term symptom and episode history The app can be used to track symptoms associated with POTS, dysautonomia, tachycardia, orthostatic intolerance, and other conditions that affect heart rate and daily functioning. Reports include heart rate trends, symptom logs, triggers, and episode history, which can be reviewed over time or shared with healthcare providers. ------------------ Terms of Use: https://www.qaly.co/terms-of-service-app ------------------ Cardiogram does not practice medicine or provide medical services. The app is provided for general informational, educational, and personal health tracking purposes only. Information available through the app is not intended to diagnose, treat, cure, or prevent any disease and should not be relied upon as a substitute for professional medical advice, diagnosis, or treatment. If you think you may be experiencing a medical emergency, contact your doctor or local emergency services immediately. Do not rely on the app for urgent or emergency medical needs. Cardiogram is not designed or intended to facilitate medical emergencies or provide emergency medical assistance.

About

GymTimer

Features
Read full description

GymTimer is a no-frills interval timer built for one thing: running your gym sets without fumbling with a stopwatch between reps. HOW IT WORKS Set your Work duration, Rest duration, and how many repetitions you want (2, 3, 4, or Unlimited) — then start training. GymTimer counts down each phase with a clear circular timer, plays a sound and vibration when a phase changes, and gives you a spoken "ten seconds" warning before rest ends so you're never caught off guard. FEATURES • Simple +/- steppers for Work and Rest durations • Set a rep target, or go Unlimited and just keep training • Big, glanceable countdown ring with phase and time remaining • Audio + haptic cues on every phase change, plus a 10-second rest warning • Pause, resume, or restart mid-session without losing your settings • Screen stays awake during a workout, so it won't lock mid-set • Your last-used settings are remembered for next time • Clean, distraction-free dark interface No accounts, no sign-up, no setup beyond picking your numbers. Just open it, set your intervals, and train.

Screenshots

Cardiogram | Track HR, POTS4 screens
GymTimer3 screens

Verdict

The call

The clearest difference is in-app purchases: GymTimer at none against Cardiogram | Track HR, POTS's 2. GymTimer also leads on update cadence (daily vs every 9 days). Cardiogram | Track HR, POTS's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Cardiogram | Track HR, POTS sells 2 in-app purchases, starting at $7.99 per month. GymTimer asks for nothing beyond the download.

UpkeepUpdate frequency

Cardiogram | Track HR, POTS ships an update every 9 days, GymTimer daily. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 7 level
Cardiogram | Track HR, POTS versus GymTimer: the parameters behind the verdict, then further details
ParameterCardiogram | Track HR, POTSGymTimer
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 9 daysDaily — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size6 MB40 MB
Age rating12+4+
DeveloperQaly, Inc.Andrea Gioco

In-app purchases

2 purchases

Cardiogram | Track HR, POTS

Subscriptions2
  • Monthly Plan (Subscription)3 Days trial$7.991 Month
  • Annual Plan (Subscription)3 Days trial$39.991 Year
None

GymTimer

No in-app purchases

Questions

Is Cardiogram | Track HR, POTS free?
Cardiogram | Track HR, POTS is free to download, with in-app purchases available.
Is GymTimer free?
GymTimer is free to download, with no in-app purchases.
Do Cardiogram | Track HR, POTS or GymTimer have ads?
GymTimer shows ads; Cardiogram | Track HR, POTS does not.
Which is updated more often, Cardiogram | Track HR, POTS or GymTimer?
Cardiogram | Track HR, POTS ships an update every 9 days, and GymTimer daily. Most recently, Cardiogram | Track HR, POTS was updated on October 28, 2026 and GymTimer on October 26, 2026.

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