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Best 3Daysdo Apps

194+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated June 2026

Finding the right 3daysdo app can be overwhelming with so many options. We've analyzed 194+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for 3Daysdo

Nerva: Gut-Brain Program#2

Nerva: Gut-Brain Program by Mindset Health Pty Ltd

IBS, FD, IBD, GERD, Bloating
Strong Contender
💪 Health & Fitness
4.7😊(14K ratings)
FreeAdsIn-App Purchases
Nerva: Gut-Brain Program screenshot 1
Nerva: Gut-Brain Program screenshot 2
Nerva: Gut-Brain Program screenshot 3
Nerva: Gut-Brain Program screenshot 4
Nerva: Gut-Brain Program screenshot 5
Nerva: Gut-Brain Program screenshot 6

This app offers a personalized gut-brain therapy program to manage symptoms of IBS, FD, GERD, and other gut-brain disorders. It aims to retrain the nervous system and improve communication between the gut and brain through daily sessions and practical tools.

What We Love

  • 🚀 Effective for symptom reduction
  • 👍 Calming and relaxing sessions
  • 💡 Helpful for managing stress and anxiety
  • 👍 Positive affirmations and education

Room to Improve

  • 🔁 Repetitive nature of sessions
  • 💰 Expensive subscription cost
  • 🔍 Lack of customization options
Fastic Weight Loss & Fasting#3

Fastic Weight Loss & Fasting by Fastic GmbH

Protein, Tracker, Nutrition
Worth Considering
💪 Health & Fitness
4.8😊(246K ratings)
FreeAdsIn-App Purchases
Fastic Weight Loss & Fasting screenshot 1
Fastic Weight Loss & Fasting screenshot 2
Fastic Weight Loss & Fasting screenshot 3
Fastic Weight Loss & Fasting screenshot 4
Fastic Weight Loss & Fasting screenshot 5
Fastic Weight Loss & Fasting screenshot 6

This app guides users through personalized intermittent fasting and nutrition plans to achieve sustainable weight loss. It offers features like a food scanner, progress tracking, and a community for support, helping users burn fat and improve overall health.

What We Love

  • 🚀 Easy to use and track food, sleep, water and activities
  • 🚀 Helpful for tracking fasting programs
  • 👍 Motivating and encouraging
  • 👍 Informative and educational

Room to Improve

  • 🐛 Inaccurate food tracking and calorie counting
  • 🐛 Glitches with fasting timer and progress tracking
  • 🔍 Limited dietary preferences and meal plans

More 3Daysdo apps to explore

4
Bearable - Symptom Tracker
Bearable - Symptom Tracker
Bearable - Symptom Tracker
Mood, Health, Migraine, Period
Free

This app helps you understand and manage your health by tracking symptoms, triggers, and treatments. It allows you to identify patterns and correlations to gain better control over chronic illnesses, pain, mood, and more. Securely store and analyze your health data to share with your doctor.

Symptom trackingTrigger identificationMedication and treatment logging
💪 Health & Fitness
(5.8K)
free with in-app purchases
5
98point6 by Transcarent
98point6 by Transcarent
98point6 by Transcarent
Health and Care on Your Terms
Free

Get on-demand medical consultations, diagnoses, and treatments from board-certified clinicians through secure in-app messaging. This service offers convenient, text-based healthcare available nationwide, 24/7, eliminating the need for appointments or travel.

On-demand virtual consultationsText-based care deliveryDiagnosis and treatment
🏥 Medical
(51K)
free
6
On/Go
On/Go
On/Go
Delightful health & care
Free

This app offers convenient COVID-19 testing and rapid treatment options for all variants. It also provides quick access to medical experts and effective treatments for common ailments like sniffles, helping users feel better faster.

COVID-19 testing and treatmentRapid diagnosis and treatment for snifflesAccess to medical experts
🏥 Medical
(52K)
free
7
Juno: Chronic Illness Support
Juno: Chronic Illness Support
Juno: Chronic Illness Support
Track Symptoms & Health
Free

This app provides a non-judgmental companion for individuals living with chronic illnesses. It offers a safe space to discuss symptoms, track health data, and gain insights without unsolicited advice. Designed by those who understand, it offers personalized support for daily challenges.

AI-powered chronic illness companionSymptom and energy level loggingPattern and trigger identification
💪 Health & Fitness
(8.4K)
free with in-app purchases
8
Cara Care: IBS, FODMAP Tracker
Cara Care: IBS, FODMAP Tracker
Cara Care: IBS, FODMAP Tracker
Track IBS, IBD, and low FODMAP
Free

Manage and track digestive health issues like IBS, IBD, and food intolerances. Log symptoms, food intake, and more to understand patterns and improve your gut health. Offers a personalized 12-week low FODMAP program with dietitian support.

Symptom tracking (bloating, pain, etc.)Food and poop loggingPersonalized low FODMAP program
🏥 Medical
(4.5K)
free with in-app purchases
9
Baritastic - Bariatric Tracker
Baritastic - Bariatric Tracker
Baritastic - Bariatric Tracker
Nutrition, Macros & Surgery
Free

This app is designed for individuals undergoing bariatric surgery or medically managed weight loss. It offers comprehensive tracking of nutrition, water intake, and medication reminders. Users can also log their journey with photos, journal entries, and access surgery-specific resources and recipes.

Nutrition and water trackingCustomizable remindersPhoto timeline for progress
🏥 Medical
(94K)
free with in-app purchases
10
MPR Drug and Medical Guide
MPR Drug and Medical Guide
MPR Drug and Medical Guide
MD Medications and Reference
Free

This app provides comprehensive drug information and clinical tools for healthcare professionals. It offers quick access to drug data, calculators, treatment charts, and educational content, all accessible offline.

Drug information referenceMedical calculatorsClinical charts
🏥 Medical
(6K)
free with in-app purchases
11
My Doctor Online (NCAL Only)
My Doctor Online (NCAL Only)
My Doctor Online (NCAL Only)
by Kaiser Permanente
Free

Manage your healthcare and your family's in one app. Receive personalized health reminders, access E-visits, schedule appointments, refill prescriptions, and view medical records. Connect with your doctor through video visits.

Personalized health remindersE-visits for advice and prescriptionsVideo doctor visits
🏥 Medical
(88K)
free
12
Monash FODMAP Diet
Monash FODMAP Diet
Monash FODMAP Diet
The Official FODMAP App
$7.99

Manage gastrointestinal symptoms associated with IBS using a scientifically developed low FODMAP diet. This app provides a comprehensive food guide with a traffic light system, certified low FODMAP products, and over 70 recipes. Track your diet, symptoms, and progress through the 3-Step FODMAP diet.

Low FODMAP food guide with traffic light systemCertified low FODMAP branded productsOver 70 low FODMAP recipes
🏥 Medical
(2.5K)
paid
13
Oshi Health
Oshi Health
Oshi Health
Gastroenterology Telehealth
Free

Access a virtual digestive health clinic with a dedicated team of GI providers, dietitians, and specialists. Receive comprehensive care for various gastrointestinal conditions and symptoms through unlimited virtual visits and ongoing support.

Virtual visits with care teamTeam-based GI care approachConvenient scheduling
🏥 Medical
(99)
free
14
Time Warp: Scan Filter & Emoji
Time Warp: Scan Filter & Emoji
Time Warp: Scan Filter & Emoji
Funny Predict & Split Filters
Free

Create funny and trending videos by adding emojis to your clips. Participate in viral challenges with a variety of emoticons and adjustable timers. Easily record and share your creations.

Add various emojis and emoticonsChoose 3-5 emoticons to imitateFunny emoji video templates
🔧 Utilities
(2.9K)
free with in-app purchases
15
Practo - Consult Doctor Online
Practo - Consult Doctor Online
Practo - Consult Doctor Online
Doctor Appointment & Medicines
Free

Access top doctors for online consultations, book appointments, order medicines, and schedule diagnostic tests from home. Get expert advice, digital prescriptions, and home sample collection for lab tests. Offers family health plans and information on elective surgeries.

Online video/audio/chat consultationsBook doctor appointmentsOrder medicines online
🏥 Medical
(2.4K)
free with in-app purchases
16
LifeMD Telehealth
LifeMD Telehealth
LifeMD Telehealth
Online Doctors & Weight Care
Free

Access board-certified online doctors for comprehensive virtual healthcare. Receive personalized treatment plans, manage chronic conditions, and address over 3,500 medical issues without co-pays or surprise bills. Dedicated care teams focus on your long-term health and well-being.

Online doctor visitsBoard-certified medical providersPersonalized treatment plans
🏥 Medical
(15K)
free
17
Galileo: Medical Care
Galileo: Medical Care
Galileo: Medical Care
24/7 Medical Care
Free

Access high-quality virtual healthcare anytime, anywhere. Book same-day appointments with real doctors for primary, urgent, or specialty care. Get prescriptions and manage chronic conditions without insurance or surprise fees.

24/7 virtual doctor appointmentsSame/next-day appointment bookingPrescription refills and management
🏥 Medical
(1.8K)
free with in-app purchases
18
QuickMD - Online Doctor Visits
QuickMD - Online Doctor Visits
QuickMD - Online Doctor Visits
Telehealth Visits 7 days/wk
Free

Access U.S.-licensed doctors for addiction treatment, weight loss, and urgent care via secure video visits. Get prescriptions and personalized care plans without insurance or subscriptions. Affordable, convenient healthcare available 7 days a week.

Secure video visits with licensed providersAddiction treatment (MAT, Suboxone)Weight loss care (Ozempic, personalized plans)
🏥 Medical
(5.4K)
free
19
mySymptoms Food Diary
mySymptoms Food Diary
mySymptoms Food Diary
IBS Food & Symptom Tracker
Free
$7.99 | 100% OFF

Track your meals, symptoms, and other health factors to uncover patterns and associations with your diet. This app helps you understand how food affects your well-being and provides detailed reports to share with healthcare professionals.

Food and health trackingExtensive food database with barcode scanningSymptom intensity and duration logging
💪 Health & Fitness
(4K)
free with in-app purchases
20
Low FODMAP diet A to Z
Low FODMAP diet A to Z
Low FODMAP diet A to Z
Food list for IBS sufferers
Free

Navigate the low FODMAP diet with a comprehensive food list and detailed breakdowns. Identify high and low FODMAP foods, explore an extensive database, and personalize your diet to manage IBS symptoms and improve digestive health.

Clear FODMAP ratingsExtensive food database (750+ foods)Detailed FODMAP breakdown
💪 Health & Fitness
(8.9K)
ad-supported