Comparison

FUNCAP vs Chronic Illness Tracker

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

Head to head
About

FUNCAP

This app helps individuals diagnosed with ME/CFS self-evaluate and record their functional capacity. It uses questionnaires to assess various domains and can generate PDF reports, optionally including heart and movement metrics. Data is integrated with HealthKit and is not transferred elsewhere.

Highlights
  • ME/CFS functional capacity assessment
  • FUNCAP55 and FUNCAP27 questionnaires
  • PDF report generation
  • Optional heart and movement metrics
  • HealthKit integration
  • Data privacy focused
Read full description

- For patients diagnosed with ME/CFS - Self-evaluate and record your FUNctional CAPacity - Assess your capacity using FUNCAP55 or FUNCAP27 by scoring questions across 8 domains, eg "being upright", "reactions to light and sound" - Create a PDF report that you can save or share - Optionally include recorded heart and movement metrics, averaged over the last month - The app does not transfer your data in any other way Integrated with HealthKit USE ONLY WITH THE ADVICE AND GUIDANCE OF YOUR PHYSICIAN OR RESEARCH TEAM. THE APP RECORDS THE USER'S OWN ASSESSMENT AND DOES NOT PROVIDE HEALTH GUIDANCE.

About

Chronic Illness Tracker

This app helps individuals manage chronic illnesses by tracking symptoms, flare-ups, energy levels, and medications. It provides insights into patterns, facilitates sharing reports with healthcare providers, and offers educational resources for better daily living.

Highlights
  • Multi-condition symptom tracking
  • Flare-up documentation and analysis
  • Energy and spoon management
  • Medication and supplement logging
  • Customizable reminders and plans
  • Health report generation
  • Weather correlation tracking
Features
Read full description

Navigate Your Chronic Illness Journey with Confidence and Clarity Living with a chronic illness means navigating unpredictable symptoms, where flare-ups can derail carefully made plans and the invisible nature of your condition often goes misunderstood. The persistent fatigue, fluctuating pain levels, and constant need to pace your energy can feel overwhelming and isolating. Chronic Illness Tracker provides a comprehensive approach to understanding and making your condition visible and manageable. It's not just an app; it's a supportive companion in your journey toward better symptom and flare management and improved daily living. Empower Your Health Management Journey Designed for ease of use on both good days and bearable ones, ensuring tracking is stress-free and simple. Multi-Condition Support: Whether you manage fibromyalgia, lupus, ME/CFS, Lyme disease, IBS, thyroid conditions, arthritis, endometriosis, or any chronic disease, track all symptoms in one unified place with customizable treatment plans. In-depth Insights: Gain insights into symptom patterns and flare-ups through intuitive charts and graphs, turning daily data into actionable insights that reveal flare triggers and trends. Seamless Report Sharing: Generate detailed PDF and CSV reports as exports for your healthcare team, fostering better communication across multiple specialists. Flare Management Tools: Document flare episodes with detailed logging of onset, severity, duration, and recovery time. Identify patterns that precede flares to develop proactive strategies. Customizable Experience: Tailor the app to your specific condition, from tracking parameters to personalized reminders for medications, pacing activities, and self-care routines. Privacy: Advanced encryption and optional Face ID or Touch ID protection keep your health data secure and private. Designed with You in Mind User-Friendly Interface: Intuitive and elegant design with accessibility features for users experiencing brain fog, fatigue, or reduced mobility. Regular Updates: Continuous improvements based on the latest research and community feedback. Responsive Support: Access our dedicated team for any queries, ensuring you're never alone in your health journey. More Than Just Tracking Energy & Spoon Management: Track daily energy reserves using spoon theory principles. Plan activities around available energy to reduce crash episodes. Medication & Supplement Logging: Monitor medications, supplements, dosages, and side effects across multiple prescriptions with adherence reminders. Weather Correlation: Track how weather changes, barometric pressure, and humidity affect symptoms to anticipate difficult days. Sleep Quality Monitoring: Log sleep patterns and disturbances to understand the relationship between rest and symptom severity. Educational Content: Discover resources about chronic illness and chronic disease management, symptom relief, pacing strategies, and flare prevention. Community Engagement: Connect with a supportive community of chronic illness warriors to share experiences. Begin Your Path to Better Health Management Simple Setup: Get started easily and intuitively with just a few steps. Subscription Flexibility: Choose a plan that aligns with your needs, manageable via the Apple Store. Transparent Policies: Clear privacy policy and terms of use for your peace of mind. Download Chronic Illness Tracker today and take the first step towards more confident health management. Any insights provided by Chronic Illness Tracker do not constitute medical advice. Always consult your healthcare provider before making any medical decisions. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FUNCAP4 screens
Chronic Illness Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: FUNCAP at 100% against Chronic Illness Tracker's 0%. FUNCAP also leads on rating (5.0 vs 4.2) and in-app purchases (none vs 15). Chronic Illness Tracker's advantage is update cadence (monthly vs every 5 months) and device support (4 vs 1). On price, ratings volume and ads 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. Chronic Illness Tracker sells 15 in-app purchases, starting at $4.95 per month. FUNCAP asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FUNCAP holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews point the same way: 100% of FUNCAP's written reviews are positive against 0% of Chronic Illness Tracker's.

UpkeepUpdate frequency

FUNCAP ships an update every 5 months, Chronic Illness Tracker monthly. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
FUNCAP versus Chronic Illness Tracker: the parameters behind the verdict, then further details
ParameterFUNCAPChronic Illness Tracker
PriceFreeFree
Rating5.0 (4 ratings) — better4.2 (10 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings410 — better
Update frequencyEvery 5 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.5 — better
Further details — not scored
Size3 MB236 MB
Age rating12+12+
DeveloperDavid Davies-PayneDigital Therapeutics

Customer experience

FUNCAP

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Chronic Illness Tracker

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

FUNCAP

No in-app purchases

15 purchases

Chronic Illness Tracker

Subscriptions12
  • flex pass$4.951 Month
  • easy pass$5.997 Days
  • weather max$9.993 Months
Show 9 more
  • flex pass$9.991 Month
  • carey ai max$19.991 Month
  • smart pass$19.991 Year
  • smart pass$24.991 Year
  • free access3 Days trial$29.991 Year
  • carey ai ultra$29.991 Month
  • select pass$34.991 Year
  • your free pass3 Days trial$39.991 Year
  • 7-Day Trial7 Days trial$49.991 Year
One-time3
  • store credit$0.99
  • carey ai credits$8.99
  • lifetime upgrade$119.99

Questions

Is FUNCAP free?
FUNCAP is free to download, with no in-app purchases.
Is Chronic Illness Tracker free?
Chronic Illness Tracker is free to download, with in-app purchases available.
Which has better reviews, FUNCAP or Chronic Illness Tracker?
FUNCAP is rated higher. FUNCAP averages 5.0 out of 5 from 4 ratings, while Chronic Illness Tracker averages 4.2 from 10 ratings.
Do FUNCAP or Chronic Illness Tracker have ads?
Neither FUNCAP nor Chronic Illness Tracker shows ads.
Which is updated more often, FUNCAP or Chronic Illness Tracker?
FUNCAP ships an update every 5 months, and Chronic Illness Tracker monthly. Most recently, FUNCAP was updated on October 7, 2026 and Chronic Illness Tracker on October 8, 2026.

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