Comparison

Pacing vs CFS Tracker

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

Head to head
About

Pacing

This app helps individuals with ME/CFS manage their activity levels by monitoring heart rate against personalized thresholds. It provides visual cues and alerts to prevent overexertion and potential relapses, integrating with Apple Health for comprehensive tracking.

Highlights
  • Activity management for ME/CFS
  • Personalized heart rate thresholds
  • Relapse prevention alerts
  • Visual heart rate zone indicators
  • Apple Health integration
  • Apple Watch exclusive
Features
Read full description

Pacing is an activity management strategy to help ME/CFS patients limit the number and severity of relapses while remaining as active as possible. For ME/CFS patient-pacing purposes the heart rate threshold is set at a percentage of the peak heart rate. The app uses the formula (220 - age) * 0.55. The app also considers the average resting heartbeat of the last 14 days. A heartbeat above 15 beats of the average resting heartbeat is also considered as too much. This app can give you clues, but it does not replace taking care of yourself and taking it easy if needed. The app is for the Apple Watch only and will not be displayed on the iPhone. Press the Digital Crown on the Apple Watch to go to the Home screen. There you will find the app. We use the following rules: Heart rate is greater than the average resting pulse + 15 in the last 14 days: red circle 100% filled and a soft click. Heart rate is smaller (220 - age) * 0.36: light, green circle 16% full Heart rate is smaller (220 - age) * 0.38: medium, green circle 32% full Heart rate is smaller (220 - age) * 0.40: hard, yellow circle 48% full Heart rate is smaller (220 - age) * 0.45: very hard, yellow circle filled to 64%, soft clicking Heart rate is smaller (220 - age) * 0. 55: cautious, yellow circle filled to 80%, soft clicking Heart rate is larger: red circle filled to 100% and a short warning tone Pacing integrates with the Apple Health app. Disclaimer: The app was developed in consultation with physicians who treat ME/CFS patients. However, the App does not provide medical advice or endorse any treatment or medical procedure. The information contained in the App is not intended to be a substitute for professional medical advice, diagnosis or treatment. Your reliance on any information provided by the App is entirely at your own risk.

About

CFS Tracker

This app helps individuals manage energy-limiting chronic illnesses by tracking symptoms, pacing, medications, and daily activities. It provides insights into patterns and trends to better understand health and communicate with healthcare providers.

Highlights
  • Log diverse symptoms including fatigue and brain fog
  • Track medications, supplements, and treatments
  • Record activity, rest, sleep, and nutrition
  • Customize tracking for personal health patterns
  • Set reminders for health routines
  • Monitor post-exertional malaise (PEM) and crashes
  • Review symptom trends with charts and summaries
Features
Read full description

Feeling overwhelmed by chronic fatigue, brain fog, low energy, and unpredictable symptoms? Cifora is a dedicated CFS/ME tracker and chronic fatigue journal built for energy-limiting conditions. Track symptoms, pacing, PEM patterns, medications, supplements, sleep, mood, pain, activity, and rest, alongside Apple Health data, in one simple place. Living with an invisible illness often means balancing activity, rest, routines, treatments, appointments, and daily responsibilities. Cifora helps you organize your health notes and review your own patterns over time, so you can keep clearer records of difficult days, flares, PEM, and crashes. Built for people tracking ME/CFS, chronic fatigue syndrome, myalgic encephalomyelitis, long COVID, post-viral fatigue, fibromyalgia, POTS, dysautonomia, migraines, MCAS, IBD, chronic pain, anxiety, depression, and other complex multisystem, energy-limiting conditions. Key features: 1. Log symptoms including fatigue, brain fog, muscle pain, joint pain, headaches, dizziness, nausea, palpitations, insomnia, sleep issues, post-activity symptoms, and other invisible symptoms 2. Track medications, supplements, treatments, care routines, appointments, and personal health notes 3. Record activity, rest breaks, sleep quality, hydration, nutrition, mood, pain, social activity, and daily energy levels 4. Customize your symptom tracker around your own health, pacing, fatigue, and energy patterns 5. Set reminders for medications, supplements, symptom check-ins, hydration, sleep, rest, and routine tracking 6. Keep a record of post-exertional malaise (PEM) patterns, energy dips, symptom flares, and energy crashes over time 7. Review charts and summaries of symptom trends across mild, moderate, severe, crash, and recovery days 8. Keep a connected health record Everything is designed for low cognitive load. Quick entries, customizable fields, reminders, charts, summaries, and reports help you stay consistent without feeling overwhelmed, even during high fatigue or brain fog. Use Cifora to keep clearer records, prepare for appointments, organize invisible symptoms, understand your own history, and communicate more clearly with your healthcare providers. Whether you are tracking mild, moderate, or severe days, Cifora gives you a flexible structure for daily chronic fatigue and ME/CFS tracking across energy, symptoms, sleep, pain, activity, rest, medications, supplements, nutrition, hydration, mood, and appointments. Your data stays private, encrypted, and under your control. You can export your records or delete your account at any time. We do not sell your health information to third parties. Disclaimer: Cifora is for tracking, journaling, educational, and informational purposes only. It is not a medical device and does not provide medical advice, diagnosis, or treatment, and is not intended to diagnose, treat, cure, prevent, or monitor any disease or medical condition. Always seek a doctor's advice in addition to using this app and before making any medical decisions, including before changing medications, supplements, treatments, activity levels, or care routines. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

CFS Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Pacing at none against CFS Tracker's 16. Pacing also leads on update cadence (every 4 days vs every 8 months). CFS Tracker's advantage is device support (4 vs 2). On price, ads 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. CFS Tracker sells 16 in-app purchases, starting at $4.95 per month. Pacing asks for nothing beyond the download.

UpkeepUpdate frequency

Pacing ships an update every 4 days, CFS Tracker every 8 months. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
Pacing versus CFS Tracker: the parameters behind the verdict, then further details
ParameterPacingCFS Tracker
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—2 — better
Update frequencyEvery 4 days — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.615.5 — better
Further details — not scored
Size1 MB219 MB
Age rating4++4
DeveloperQ_PERIOR AGDigital Therapeutics

Customer experience

Pacing

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

CFS Tracker

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Pacing

No in-app purchases

16 purchases

CFS Tracker

Subscriptions13
  • flex pass$4.951 Month
  • easy pass$5.997 Days
  • flex pass$8.991 Month
Show 10 more
  • carey ai max$19.991 Month
  • yearly access$19.991 Year
  • smart pass$24.991 Year
  • carey ai ultra$29.991 Month
  • plus$29.991 Year
  • limited discount$29.991 Year
  • Premium Yearly$34.991 Year
  • yearly access3 Days trial$39.991 Year
  • Extended Trial3 Days trial$39.991 Year
  • 7-Day Trial7 Days trial$49.991 Year
One-time3
  • store credit$1.99
  • carey ai credits$8.99
  • lifetime upgrade$99.99

Questions

Is Pacing free?
Pacing is free to download, with no in-app purchases.
Is CFS Tracker free?
CFS Tracker is free to download, with in-app purchases available.
Do Pacing or CFS Tracker have ads?
Neither Pacing nor CFS Tracker shows ads.
Which is updated more often, Pacing or CFS Tracker?
Pacing ships an update every 4 days, and CFS Tracker every 8 months. Most recently, Pacing was updated on September 29, 2026 and CFS Tracker on September 20, 2026.

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