# Endó — Match symptoms, track cycles

> Match symptoms, track cycles (iPhone/iPad app by Gisli Gardar Bergsson.)

- Source: https://appshunter.io/ios/app/endo/id6792508925 (this page in markdown: same URL + `.md`)
- Developer: [Gisli Gardar Bergsson](https://appshunter.io/developer/1693564450)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 17+
- Requires: iOS 26.0 · 19 MB
- Languages: American English
- Released: 2026-09-23
- Data updated: 2026-10-09

## What is Endó?

Understand your body. Shorten the path to answers.

The average time from first symptom to an endometriosis diagnosis is six to ten years. Recognising your symptom pattern early — and having it written down — is one of the few parts of that timeline you can actually influence.

Endó is a symptom-matching and tracking app for people who suspect endometriosis, or who already have a diagnosis and want to understand what makes their symptoms better or worse.


SEE HOW YOUR SYMPTOMS COMPARE
Answer a 56-symptom questionnaire drawn straight from published research. Endó shows you which of your symptoms are the ones most strongly associated with endometriosis in that study — and which are not.

LOG IT DAY BY DAY
Pain, symptoms, mood and flow, with your cycle day and phase alongside them. A minute a day builds a record that's hard to reconstruct from memory.

A PLAN, NOT GENERIC ADVICE
Your answers about remedies, diet, sleep and daily impact turn into concrete things to try and track next cycle.

WALK IN PREPARED
Months of structured symptom history in one place: symptom timeline, cycle history, pain patterns, and what you've already tried.

ASK ABOUT FOOD AND HABITS
Is coffee bad for endo? Should I avoid gluten? Endó's advisor answers everyday questions about food and lifestyle, with sources shown alongside.


THE RESEARCH BEHIND IT

Endó's symptom matching is drawn from one specific peer-reviewed, open-access study:

Goldstein, A. & Cohen, S. (2023). Self-report symptom-based endometriosis prediction using machine learning. Scientific Reports, 13, 5499.

The authors surveyed 886 women — 474 with a diagnosis of endometriosis and 412 without — recording which of 56 symptoms each had experienced in the past month. Those published per-symptom frequencies are what the questionnaire is built on. The study was approved by the ethics committee of Ariel University.

Its limitations are worth knowing, and we don't hide them: participants were recruited through Facebook groups rather than clinics, and some women in the undiagnosed group may have undiagnosed endometriosis. You can read the full paper yourself.


IMPORTANT

Endó is an educational symptom-matching and tracking tool. It is not a medical device, not a diagnosis, and not a substitute for professional care. A symptom match is not a result, a risk score, or a prediction. Only a qualified clinician can diagnose endometriosis. Always talk to a healthcare professional about your symptoms.


PRIVACY
Your health data is yours. See our privacy policy for exactly what is stored and where.


Questions or feedback: theendoappeu@gmail.com
Privacy Policy: https://endotheapp.com/privacy
Terms of Use: https://endotheapp.com/terms

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Endó Plus — Yearly | $39.99 | per year |
| Endó Plus (Weekly) | $1.99 | per 7 days |


## Is Endó safe?

Not enough ratings yet to assess Endó.

## Is Endó legit?

Endó appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Endó is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 2 — 2026-10-02

Some fun new features!

### 1.0 — 2026-09-23

No release notes.

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## More apps by Gisli Gardar Bergsson

- [Kalí](https://appshunter.io/ios/app/kali/id6755656254)
- [Muscle Club — Gym Workouts](https://appshunter.io/ios/app/muscle-club-gym-workouts/id6814244685)

All apps by Gisli Gardar Bergsson: https://appshunter.io/developer/1693564450

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*