Comparison

Function Health vs Forela

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

Head to head
About

Function Health

Take control of your health with comprehensive lab testing, personalized protocols, and AI-powered insights. Understand your body's data, track changes over time, and make informed decisions for long-term wellness. Connect wearables and upload records for a complete health picture.

Highlights
  • 160+ lab tests annually
  • Personalized health protocols
  • Private AI Chat for results
  • Connect health wearables
  • Advanced MRI & CT scans
  • Upload health records
Features
Read full description

Function membership helps you take control of your health with 160+ lab tests each year, personalized Protocols, and Private AI Chat—all backed by advanced science and your real data. Built with top doctors, Function gives you the power to understand your body, track how it evolves, and make meaningful change. NOW AVAILABLE: HOME OR OFFICE BLOOD DRAWS Schedule a concierge blood draw at your home or office. A licensed specialist comes to you and completes your blood draw in under 20 minutes. Available in select locations. 160+ LAB TESTS Membership includes testing for your heart, hormones, thyroid, liver, kidneys, toxins, nutrients, inflammation, autoimmunity, immunity and more. ADVANCED MRI & CT SCANS Detect early signs of cancer and hundreds of other potential conditions with the option to purchase advanced imaging for your brain, pancreas, liver, spine, ovaries, prostate, heart and much more. PRIVATE AI CHAT Ask questions about your results, identify meaningful patterns, and figure out where to focus next, with Private AI Chat—built in partnership with top clinicians. CONNECT WEARABLES Connect Apple Health and other health devices and wearables to see how your activity, sleep, and daily habits affect your lab test results and long-term health. PROTOCOLS Translate your lab results, scans and health history into clear, evidence-based plans for nutrition, activity, and supplements—all customizable to your goals and preferences. UPLOAD HEALTH RECORDS Upload past lab test results, scans, and other medical records for a more complete view of your health, all in one secure place. PROGRESS YOU CAN SEE Twice-yearly and On-Demand testing helps you track your results over time, monitor for early signs of disease, and identify where to focus next. ADVANCED LAB TESTS Membership includes 160+ lab tests, plus the option to purchase advanced On-Demand tests for: - Detection of 50+ cancers - Alzheimer’s risk detection - MTHFR gene variants - Advanced MRI and CT scans starting at $365 - Food allergies and sensitivities - …and much more ACCESSIBILITY What could cost as much as $15,000 on your own is included with membership for just $365/year. Lab testing is available at over 2,000 lab locations across the US, with no insurance needed. SECURITY Function was built for privacy and security. Function is built to HIPAA standards. Your information is secure. How it works: 1. Join Function and schedule your first set of lab tests. 2. Get your results and personalized Protocols. Ask questions with your Private AI Chat. 3. See your progress with 60+ lab tests at your Mid-Year Test. 4. Purchase MRI or CT scans and other advanced On-Demand Tests any time. DISCLAIMER Function Health is a technology company and not a laboratory or medical provider. All laboratory and medical services are provided by independent third parties. Function Health does not offer medical advice, laboratory services, a diagnosis, medical treatment, or any form of a medical opinion; its services are not a substitute for medical care, medical advice, and/or a detailed discussion with a physician or other licensed provider. If you have any questions regarding any laboratory results or any other information that you access through Function Health, you should contact a physician or other licensed provider. All material, information, data, and content that Function Health provides is strictly for general information purposes. For additional important information: https:// www.functionhealth.com/terms-of-service.

About

Forela

This app helps users track symptoms, appointments, and medical information related to endometriosis. It connects with wearables for automatic data logging and provides personalized daily care plans for meals, movement, mental well-being, and sleep.

Highlights
  • Symptom logging (pain, fatigue, mood, sleep, menstrual patterns)
  • Wearable device integration for automatic data logging
  • Personalized daily care plans (Meal, Move, Mental, Sleep)
  • Pattern visualization against personal baseline
  • Adjustable and scalable care plan options
  • Data sharing with healthcare providers
Features
Read full description

You have been the one keeping track. The symptoms, the appointments, what one doctor said that the next one needs to know. Forela holds it in one place. Where most health apps were built for general wellness and adapted afterward, Forela was built for endometriosis: a condition that unfolds across years and across body systems. What Forela does Log what you feel: pain, fatigue, mood, sleep, menstrual patterns, flares. Connect your wearables so sleep, cycle, and activity log themselves. See your pattern over time, measured against your own baseline rather than an average. Follow a daily plan across four main pillars: Meal, Move, Mental, and Sleep. Adjust it to what is manageable this week. Swap it, edit it, scale it back. Bring a fuller picture to whoever sees you next. What it runs on Forela reads what you log against clinical protocols built with Dr. Iris Kerin Orbuch, endometriosis specialist and excision surgeon, and Forela co-founder. The protocols draw on a team of clinical advisors who treat this condition for a living. Forela learns your baseline and stays with you as things change. More about how Forela works, and who built it at forela.health Forela supports you alongside your care. It does not diagnose, treat, or prevent any condition, and is not a substitute for professional medical advice.

Screenshots

Function Health4 screens
Forela4 screens

Verdict

The call

Function Health and Forela both sit at 4.9 stars, but that hides the real split: 100% of Forela's written reviews are positive against 62% of Function Health's. Forela also leads on monetization model (free vs subscription). Function Health's advantage is update cadence (weekly vs every 2 months) and ratings volume (25K vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Function Health against 5.0 for Forela. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 62% of Function Health's written reviews are positive against 100% of Forela's.

UpkeepUpdate frequency

Function Health ships an update weekly, Forela every 2 months. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 6 level
Function Health versus Forela: the parameters behind the verdict, then further details
ParameterFunction HealthForela
PriceFreeFree
Rating4.9 (25K ratings)5.0 (1 ratings) — better
Positive reviews61.8% of reviews100.0% of reviews — better
Number of ratings25K — better1
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
Best chart rank#169 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size203 MB75 MB
Age rating17+17+
DeveloperFunction HealthForela

Customer experience

Function Health

All ratings24,942 ratings
Positive99.0%
Neutral0.4%
Negative0.6%
Written reviews348 reviews
Positive61.8%
Neutral5.5%
Negative32.8%

Forela

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Function Health

Reported bugs

2 issues
  • App sometimes redirects back to the home screen when trying to view results
  • Occasional typos and formatting issues in the app

Requested features

3 requests
  • More customization options in the app settings
  • Ability to print or export test results and recommendations
  • Specific supplement recommendations rather than broad suggestions

Forela

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Function Health

No in-app purchases

None

Forela

No in-app purchases

Questions

Is Function Health free?
Function Health is free to download, with no in-app purchases.
Is Forela free?
Forela is free to download, with no in-app purchases.
Which has better reviews, Function Health or Forela?
Forela is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while Forela averages 5.0 from 1 ratings.
Do Function Health or Forela have ads?
Neither Function Health nor Forela shows ads.
Which is updated more often, Function Health or Forela?
Function Health ships an update weekly, and Forela every 2 months. Most recently, Function Health was updated on October 19, 2026 and Forela on October 9, 2026.

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