Best Endometriosis Apps in 2026, Tested and Compared

An endometriosis app is a phone tool that helps you log pelvic pain, menstrual cycle phases, bleeding, and daily symptoms so you can spot patterns and hand your clinician a clearer picture than memory alone. Endometriosis is a condition where tissue similar to the lining of the uterus grows outside it, and the pain often shows up as dysmenorrhea (painful periods), pain during sex, and pain that flares unpredictably through the month. A good app turns that mess into something you can actually read back.

The reason tracking matters here is diagnosis. Endometriosis takes years to confirm, often only after a laparoscopy, and the World Health Organization estimates it affects roughly 1 in 10 women and girls of reproductive age. A months-long log of your pain, cycle, and triggers gives your gynecologist evidence to work from instead of a shrug. Below are five apps worth your time in 2026, what each one is best for, and what they cost.

Which endometriosis app is best for you?

Each app leans toward a different job, so the “best” one depends on whether you want to feed research, sync your cycle, track flexibly, or manage endo alongside other conditions.

Rox is made by our team; the rest of this comparison is independent research. Prices checked July 2026.

Phendo — best for feeding real endometriosis research

Phendo is a free app from Citizen Endo, a research project based at Columbia University. When you log your symptoms, your anonymized data goes to researchers studying how endometriosis actually behaves day to day, which is how the team has identified distinct symptom patterns across patients.

The tracking set is built specifically around endo, so you’re logging the things that matter for this condition rather than squeezing your experience into a generic period tracker. Its self-assessment covers pain, bleeding, mood, gastrointestinal symptoms, and how endo affects your daily function.

Honest pros:

• Free with no upsell, backed by a named academic team.

• Symptom categories designed around endometriosis, not retrofitted from a fertility app.

• Your logging contributes to research that could help others get diagnosed faster.

The trade-off is that Phendo is a research tool first. The insights it hands back to you personally are lighter than a dedicated analytics app, and the interface feels more clinical than polished.

Clue — best for cycle and period pattern tracking

Clue is a science-led period tracker that predicts your cycle phases and logs bleeding, pain, and dozens of other symptoms. For endometriosis, its strength is showing how your pain lines up with your menstrual cycle, which helps you and your gynecologist see whether flares track with menstruation or hit at other points.

Clue has built a reputation for taking data seriously and works well even when your cycle is irregular, which is common with endo. The free version handles core tracking and predictions. Clue Plus, the paid tier, adds cycle comparisons and deeper pattern analysis, and runs around $39.99 a year in the US (£24.99 in the UK, with pricing set by your app store region).

Honest pros:

• Strong, evidence-minded cycle predictions and a clear phase view.

• Handles irregular cycles without breaking.

• Robust free tier that covers most everyday tracking.

The limit is scope. Clue is built around the menstrual cycle, so if your main goal is managing pain and a stack of other symptoms rather than the cycle itself, it can feel narrow.

Bearable — best for flexible symptom and trigger correlation

Bearable is a general symptom tracker that lets you build your own trackers for pain, mood, sleep, energy, medications, and anything else, then surfaces correlations between them. If you suspect certain foods, stress, or sleep worsen your endo flares, this is the app that helps you test that hunch.

You can log period and cycle data alongside everything else and use its Impacts view to see which factors line up with worse symptom days. That flexibility makes it a favorite for people juggling chronic conditions. If you want a broader look at flexible logging, our roundup of the best symptom tracker app options goes deeper on this category.

Honest pros:

• Highly customizable, so you track exactly what matters to you.

• Correlation reports help connect triggers to flare days.

• Clean, readable data visualizations.

Most features are free. Bearable Premium adds deeper insights and correlation reports at $34.99 a year or $6.99 a month, and the annual plan is frequently discounted. The downside is the setup effort. All that customization means you invest time upfront deciding what to log.

CareClinic — best for all-in-one medication and symptom logging

CareClinic is a health management app that combines symptom tracking with medication reminders, supplement logging, and exportable reports. For endometriosis, that matters if you’re on hormonal treatment or pain medication and want reminders plus a record of what you took and how you felt.

You can log pelvic pain, cycle data, mood, and side effects, then export a report to bring to appointments. It aims to be a single place for the whole picture rather than cycle data alone.

Honest pros:

• Medication and supplement reminders built in.

• Exportable reports designed to share with a clinician.

• Broad tracking across symptoms, mood, and treatments.

The free tier covers a lot. CareClinic Premium unlocks unlimited tracking and advanced reports at $59.99 a year or $9.99 a month. The catch is that the sheer number of features can feel heavy if all you want is quick daily logging.

Rox — best for tracking endo alongside other overlapping conditions

Rox is a free tracker built for people managing complex or overlapping conditions, which is common with endometriosis. Many people with endo also live with conditions like migraine, IBS, fibromyalgia, or fatigue-driven illness, and Rox is designed to hold all of that in one place instead of forcing you into a period-only app.

For free, you get symptom logging, medication logging, health vitals, insights drawn from your manual logs, and a doctor report you can take to appointments. Rox also connects to wearables like Whoop, Oura, Apple Watch, and Garmin, and surfaces that device data alongside your logs so your heart rate or sleep sits next to your pain entries. If you manage more than one diagnosis, our guide to the best chronic illness apps covers this wider need, and if you’re tracking hormonal shifts too, the best perimenopause apps roundup is worth a look.

Honest pros:

• Free symptom, medication, and vitals tracking with no cap on core logging.

• Wearable connect-and-surface for Apple Watch, Oura, and Garmin device data next to your logs.

• Built for overlapping conditions, so endo doesn’t have to live in a separate app from everything else.

Being straight about it: Rox is a strong tracker, not a cycle-prediction specialist. If pure period forecasting is your priority, Clue goes further there. Rox’s paid tier is limited to AI features, and the free version does not do flare prediction or energy forecasting.

How to choose an endometriosis app

Start with your main goal. If you want to contribute to research and log endo-specific symptoms, Phendo fits. If your pain seems tied to your cycle and you want strong predictions, Clue is the pick. If you’re hunting for triggers, Bearable’s correlations earn their keep. If you take several medications, CareClinic’s reminders and reports help. If endo is one of several conditions you manage, Rox keeps them together for free.

Two practical checks before you commit. First, confirm the app exports or shares a report, because a log you can hand to your gynecologist is far more useful at a 15-minute appointment than one trapped on your phone. Second, read the privacy policy for how your cycle and health data is stored and shared, since this is sensitive information. Whichever you choose, consistency beats perfection. A month of rough daily logs tells your clinician more than a perfect week.

Frequently asked questions

What is the best free endometriosis app?

Phendo and Rox are both fully usable for free. Phendo is a free research app from Columbia University’s Citizen Endo project with endo-specific symptom tracking. Rox is a free tracker that covers symptom logging, medication logging, vitals, wearable data, and a doctor report, and is a good fit if you manage endometriosis alongside other conditions. Clue, Bearable, and CareClinic also have free tiers, with paid upgrades for deeper analytics.

Can an app help diagnose endometriosis?

No app can diagnose endometriosis. Diagnosis is made by a doctor, often confirmed through a laparoscopy, which is keyhole surgery to look for endometriosis tissue. What an app does is build a detailed record of your pelvic pain, cycle, and symptoms over time, which gives your gynecologist stronger evidence to act on and can help shorten the path to a diagnosis. Treat the app as a tracking tool, not a diagnostic one.

Which app is best for tracking endometriosis pain with other conditions?

Rox is built for tracking endometriosis alongside overlapping conditions like migraine, IBS, or fatigue-related illness, keeping all your symptoms, medications, and vitals in one free app rather than separate trackers. Bearable is also strong here because you can create custom trackers for multiple conditions and see correlations between them. Both let you log everything in one place instead of switching between a period app and a symptom app.

Do endometriosis apps sync with wearables like Apple Watch, Oura, or Whoop?

Some do. Rox connects to Whoop, Oura, Apple Watch, and Garmin and shows that device data, such as heart rate and sleep, alongside your manual symptom logs for free. Coverage varies by app, so check the specific integrations before you rely on them. Wearable data can add useful context to your pain and cycle entries, though no consumer app replaces clinical assessment.

This article is general information, not medical advice. Endometriosis symptoms overlap with other conditions, so speak with a qualified clinician about diagnosis and treatment.