Comparison

Phendo vs Endo Tracker

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

Head to head
About

Phendo

This app helps individuals with endometriosis track symptoms, evaluate self-management strategies, and share data with their care team. By participating, users contribute to vital research aimed at understanding and managing the condition.

Highlights
  • Symptom tracking
  • Self-management strategy evaluation
  • Personalized health journal
  • Collaborative care with healthcare team
  • Contribution to endometriosis research
  • Eligibility tracking
Features
Read full description

Welcome to Phendo, a research app designed to transform the way individuals living with endometriosis understand and manage their condition, while contributing invaluable data to advance scientific research in the field. Symptom Tracking Phendo offers a platform for users to track their symptoms. Every aspect of your experience is documented, creating a personalized health journal, from pain intensity to endo belly. Self-Management Empower yourself with the ability to record and evaluate the effectiveness of various self-management strategies. Whether it's dietary changes, exercise routines, or medication schedules, Phendo helps you track what works or doesn’t work, enabling a more tailored approach to managing your endometriosis. Collaborative Care With Phendo, you're not just managing your condition; you're actively participating in your healthcare journey. The app allows you to explore your tracked data together with your care team and make informed decisions about which treatments are most effective for you. Contribute to Research By using Phendo, you're also contributing to a larger cause. The data you provide helps researchers gain a deeper understanding of endometriosis. Your participation is instrumental in advancing our knowledge of this complex condition. Eligibility Menstrual Requirement: Must have had at least one menstrual period. Age Requirement: Must be 13 or older. For those aged 13-17, parental or guardian consent is required. Join the Phendo community today, and take control of your endometriosis journey while contributing to vital research efforts! Phendo is a research app from Citizen Endo, a research initiative at the Columbia University Department of Biomedical Informatics.

About

Endo Tracker

Features
Read full description

EndoTracker - Endometriosis & Adenomyosis Symptom Tracker Living with endometriosis or adenomyosis means dealing with unpredictable pain, heavy bleeding, fatigue, and symptoms that are hard to put into words — especially during a 10-minute doctor's appointment. EndoTracker gives you a simple, private way to log everything in seconds and turn your daily experience into clear, shareable insights. TRACK WHAT MATTERS - FAST Log your day in under a minute. Record pain intensity (0–10), pinpoint locations (pelvis, lower back, abdomen, legs, head), and describe the type — cramping, stabbing, pressing, or burning. Track blood loss intensity, clots, fatigue, mood, and bowel or bladder symptoms. Having a rough day? Add multiple registrations as your symptoms change throughout the day. YOUR MEDICATIONS, ORGANIZED Choose from 30+ built-in endometriosis medications — painkillers, hormone therapy, supplements, and more — or add your own. Log what you took, when, and how well it worked. See at a glance which medications you've taken today and which ones you haven't. A CALENDAR THAT TELLS YOUR STORY See your entire month at a glance. Every day is color-coded by severity — mild, moderate, or severe — based on the combination of pain, blood loss, and fatigue. A small dot marks bleeding days. Tap any day to review the full details. Spot your patterns without reading a single number. DASHBOARD BUILT FOR DAILY USE Open the app and immediately see what matters: today's status, this week's overview with color-coded day circles, and your 30-day statistics including average pain score, flare-up days, bleeding days, and symptom-free days. Everything on one screen, no digging through menus. WELLNESS SCORE Answer 5 quick questions about pain impact, sense of control, emotional wellbeing, social support, and self-image. Track your score over time and see how your quality of life changes with different treatments. A meaningful number to share with your doctor. DISCOVER PATTERNS (PRO) EndoTracker analyzes your registrations to uncover what you can't see day-to-day: which body areas are most affected, what symptoms cluster together, which days of the week tend to be hardest, and how your cycle influences your pain. These insights help you prepare, plan, and have better conversations with your healthcare team. MEDICATION EFFECTIVENESS (PRO) See your average pain on days with versus without each medication. Compare percentage reductions side by side. Know what actually works — backed by your own data, not guesswork. PDF HEALTH REPORT (PRO) Generate a clean, professional PDF report covering any time period you choose. Pain distribution, symptom frequency, medication overview, blood loss trends, wellness scores — all formatted and ready to hand to your gynecologist or GP. No more trying to remember how last month went. NOTES & JOURNAL (PRO) Add personal notes to any registration - what you ate, how you slept, what triggered a flare-up. Review your notes in a timeline on your dashboard to identify triggers or track recovery after surgery. YOUR SOS PLAN Prepare for your worst days on a good day. Write down your personal pain management plan, store your emergency contact with a one-tap call button, and access it instantly when you need it most. BUILT FOR PRIVACY All your data stays on your device. No account required. No cloud. No tracking. Nothing leaves your phone ever. EndoTracker is designed for people living with endometriosis and adenomyosis who want to understand their body, communicate clearly with their healthcare team, and take control of their treatment journey. Download EndoTracker and start turning your daily experience into insights that matter.

Screenshots

Phendo4 screens
Endo Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Phendo at none against Endo Tracker's 3. Phendo also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.2). Endo Tracker's advantage is update cadence (monthly vs every 4 months). On price 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. Endo Tracker sells 3 in-app purchases, starting at $6.99 per month. Phendo asks for nothing beyond the download.

UpkeepUpdate frequency

Phendo ships an update every 4 months, Endo Tracker monthly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Phendo versus Endo Tracker: the parameters behind the verdict, then further details
ParameterPhendoEndo Tracker
PriceFreeFree
Rating4.0 (11 ratings) — better—
Positive reviews52.9% of reviews—
Number of ratings11 — better—
Update frequencyEvery 4 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better26.2
Further details — not scored
Size49 MB16 MB
Age rating12+17+
DeveloperNoemie ElhadadPatrick van der Ploeg

In-app purchases

None

Phendo

No in-app purchases

3 purchases

Endo Tracker

Subscriptions2
  • Monthly Plan Endometriosis Tracker$6.991 Month
  • Annual Plan Endometriosis Tracker7 Days trial$34.991 Year
One-time1
  • Lifetime Endometriosis Tracker$89.99

Questions

Is Phendo free?
Phendo is free to download, with no in-app purchases.
Is Endo Tracker free?
Endo Tracker is free to download, with in-app purchases available.
Do Phendo or Endo Tracker have ads?
Neither Phendo nor Endo Tracker shows ads.
Which is updated more often, Phendo or Endo Tracker?
Phendo ships an update every 4 months, and Endo Tracker monthly. Most recently, Phendo was updated on November 2, 2026 and Endo Tracker on October 31, 2026.

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