Comparison

Phendo vs Endometriosis 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

Endometriosis Tracker

This app helps individuals manage chronic health conditions like endometriosis, PCOS, and PMDD. It allows for detailed symptom tracking, medication logging, and provides personalized insights to understand the impact of lifestyle and treatments on well-being. Users can also organize medical history and access supportive wellness tools.

Highlights
  • Symptom and mood logging
  • Period and cycle tracking
  • Medication and supplement reminders
  • Personalized health insights
  • Pain and mood support tools
  • Medical history organization
  • Care team contact management
Features
Read full description

Finally, an App That Understands Endometriosis, PMDD, PCOS & More Endira is your personal health management companion, created for those navigating complex conditions like endometriosis, adenomyosis, PCOS, PMDD, hormonal imbalance, and chronic pelvic pain. Whether managing unpredictable symptoms, tracking flare-ups, or just trying to get answers, Endira provides the clarity, structure, and trust you need every day. More than a basic period tracker, Endira is a complete symptom management solution. It’s your personalized medical journal, medication tracker, pain relief tool, and wellness planner - all in one secure app. Track What Matters Most Log physical and emotional symptoms like fatigue, bloating, brain fog, nausea, mood swings, cramps, energy changes, and menstrual pain. Add notes and tags to each entry. Spot trends and uncover hidden patterns that may affect your quality of life. With Endira, you’re no longer guessing -- you’re tracking with purpose. Understand the Full 28-Day Cycle Track your period, ovulation, irregular spotting, and hormonal fluctuations. Designed for complex cycle patterns and irregularities, Endira provides cycle insights that standard period apps miss. You’ll understand where you are in your cycle and how it connects to your symptoms. Stay on Top of Medication and Supplements Never miss a dose again. Set reminders and log medications, hormone therapy, natural supplements, and over-the-counter pain relief. Endira works as your medication manager, making it easy to stay consistent and track how treatments affect your symptoms. Turn Your Logs Into Personalized Insights Your health data becomes actionable insights. Discover how your sleep, stress, nutrition, and treatments influence your symptoms. Whether you're adjusting your routine, changing medications, or working with your doctor, Endira helps you make more informed decisions. In-App Tools for Pain and Mood Support Access wellness features built specifically for endometriosis and PMDD. Use guided techniques for pain relief, fatigue recovery, and mood regulation. Manage daily symptoms and reduce overwhelm using calming tools and stress-tracking prompts. Organize Your Full Medical History Centralize your health records, appointments, surgeries, lab tests, diagnoses, and care plans in one private space. Upload doctor notes and store everything securely so you can reference them anytime or share them with your care team. Support Your Care Team and Network Keep a list of key contacts: gynecologists, pelvic health therapists, nutritionists, or support groups. Share health updates when you choose to. We help you stay connected while maintaining complete control over your privacy. Safe, Private, and Fully Secure Endira is encrypted and compliant with global data privacy standards. Your information is never sold or shared. You control what you log, what you track, and what you keep completely private. Built for Real People Managing - Endometriosis and adenomyosis - PMDD and menstrual mood changes - PCOS and hormone irregularities - Cycle pain and pelvic discomfort - Fertility issues and tracking needs - Long-term treatment and chronic fatigue - Period-related inflammation and bloating Why Thousands Are Switching to Endira "I finally feel heard when I show my doctor these logs" "This app connects my cycle to my symptoms in a way no other one does" Take Control With More Than a Period App Endira is for people who need more than basic logging. It’s for people managing complex, long-term conditions who want clarity, advocacy, and support in one place. Whether you're newly diagnosed or looking for a better way to manage your health, Endira is your trusted companion. Disclaimer Endira is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider with questions about your health or before making medical decisions. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Phendo4 screens
Endometriosis Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Phendo at 53% against Endometriosis Tracker's 0%. Phendo also leads on rating (4.0 vs 1.0) and in-app purchases (none vs 17). On price, ads, 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. Endometriosis Tracker sells 17 in-app purchases, starting at $4.95 per month. Phendo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Phendo holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: Phendo has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 53% of Phendo's written reviews are positive against 0% of Endometriosis Tracker's.

UpkeepUpdate frequency

Phendo ships an update every 4 months, Endometriosis Tracker every 12 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

Scorecard6 real differences · 4 level
Phendo versus Endometriosis Tracker: the parameters behind the verdict, then further details
ParameterPhendoEndometriosis Tracker
PriceFreeFree
Rating4.0 (11 ratings) — better1.0 (1 ratings)
Positive reviews52.9% of reviews — better0.0% of reviews
Number of ratings11 — better1
Update frequencyEvery 4 months — betterEvery 12 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.1 — better15.5
Further details — not scored
Size49 MB202 MB
Age rating12+4+
DeveloperNoemie ElhadadDigital Therapeutics

Customer experience

Phendo

All ratings11 ratings
Positive72.7%
Neutral0.0%
Negative27.3%
Written reviews17 reviews
Positive52.9%
Neutral0.0%
Negative47.1%

Endometriosis Tracker

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Phendo

No in-app purchases

17 purchases

Endometriosis Tracker

Subscriptions14
  • steady pass$4.951 Month
  • easy pass$5.997 Days
  • flex pass$8.991 Month
Show 11 more
  • weather max$9.993 Months
  • carey ai max$19.991 Month
  • yearly access$19.991 Year
  • smart pass$19.991 Year
  • carey ai ultra$29.991 Month
  • plus$29.991 Year
  • Premium Yearly$29.991 Year
  • limited discount$29.991 Year
  • Extended Trial3 Days trial$39.991 Year
  • yearly access3 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 Phendo free?
Phendo is free to download, with no in-app purchases.
Is Endometriosis Tracker free?
Endometriosis Tracker is free to download, with in-app purchases available.
Which has better reviews, Phendo or Endometriosis Tracker?
Phendo is rated higher. Phendo averages 4.0 out of 5 from 11 ratings, while Endometriosis Tracker averages 1.0 from 1 ratings.
Do Phendo or Endometriosis Tracker have ads?
Neither Phendo nor Endometriosis Tracker shows ads.
Which is updated more often, Phendo or Endometriosis Tracker?
Phendo ships an update every 4 months, and Endometriosis Tracker every 12 months. Most recently, Phendo was updated on October 13, 2026 and Endometriosis Tracker on October 15, 2026.

Other comparisons