Best Called To B Apps

250+ iOS apps curated and reviewed

4.2 avg rating

20 free apps

Updated October 2026

If you already know Called To B, this is the deeper bench. 250+ called to b apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Called To B Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Called To B	Free	—	Yes	No	Jul 2026
2	Rythm Health	Free	4.8★ (34)	No	No	Oct 2026
3	BioLife Plasma Services	Free	2.6★ (3.8K)	No	No	Oct 2026
4	ImmGen	Free	5.0★ (13)	No	No	May 2026
5	CD Antigens Information Finder	Free	5.0★ (2)	No	No	Oct 2026
6	WBC Counter	Free	4.5★ (26)	Yes	No	Oct 2026
7	MyQuest for Patients	Free	4.7★ (522K)	No	No	Oct 2026
8	CellAtlas	Free	3.2★ (22)	No	No	Oct 2026

Top Picks for Called To B

#1

Called To B by Called to B

Your Workouts & Nutrition App

Editor's Choice

💪 Health & Fitness

0.0(0 ratings)

FreeAds

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#2

Rythm Health by Rythm Health, Inc.

The World’s Easiest Blood Test

Strong Contender

💪 Health & Fitness

4.8(34 ratings)

Free

#39in Health & Fitness

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Take control of your health with at-home blood testing. Get personalized insights and AI coaching to understand your body's changes over time. Available nationwide for easy tracking and monitoring of key biomarkers.

#3

BioLife Plasma Services by Takeda Pharmaceuticals International AG

Let’s work Arm-In-Arm!

Worth Considering

2.6😞(3.8K ratings)

Free

#18in Medical

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Easily schedule plasma donation appointments, track your reward payments, and discover exclusive promotional offers. Stay informed about your donation progress and refer friends to earn bonuses. This app simplifies the process of contributing to life-saving therapies.

What We Love

🚀 Smooth transitions
👍 User-friendly interface
💡 Helpful features like scheduling and balance tracking
👍 Friendly and professional staff

Room to Improve

🐛 Frequent crashes and glitches
🐛 Login and registration issues
🐛 Unreliable balance and transaction tracking
🐛 Scheduling problems and appointment cancellations
🐛 Slow and unresponsive app

More Called To B apps to explore

by Christophe Benoist

Explore gene expression data across various immune cell types in mice and humans. Visualize expression levels with interactive heatmaps and bar charts. Discover correlated genes to understand cellular relationships.

Gene expression heatmap barcodesVisualize expression in cell lineagesToggle between mouse/human datasets

CD Antigens Information Finder

CD Antigens Information Finder

CD Antigens Information Finder

Access a comprehensive database of cell-surface antigens, detailing their molecular weight, family, expression patterns, and functions. Search by official CD designation, synonyms, or associated diseases and tissues for quick information retrieval.

CD antigen databaseSearch by CD designation, synonyms, keywordsDetails on molecular weight, family, structure

cell counter for veterinarians

This app assists veterinarians with daily clinical work by providing a White Blood Cell differential counter. It offers intuitive touch controls, count adjustment modes, and customizable audio/vibration feedback for efficient cell counting during microscopy.

WBC differential counterTouch cell buttonCount up & count down mode

MyQuest for Patients

MyQuest for Patients

MyQuest for Patients

by Quest Diagnostics, Inc.

Access your lab results, schedule appointments, and manage your health information securely. Find nearby locations, share data with providers, and even purchase your own tests. Take proactive control of your well-being.

View lab results securelyFind nearby Quest locationsSchedule and manage appointments

Explore blood cell morphology with expert-written lectures and a vast image database. Test your knowledge with an engaging quiz game designed for efficient learning.

Blood cell morphology guideExpert-written mini lecturesExtensive cell image database

NYU Langone Health

NYU Langone Health

NYU Langone Health

MyChart, Find a Doctor & More

Access your health information on the go, including test results, messages with your care team, and upcoming appointments. Stay on top of preventive care with health advisories and manage your family's health with proxy access.

View test resultsMessage healthcare teamManage appointments

by The Blood Connection

Easily find and schedule appointments at donation centers and mobile blood drives. Donors can access their account to view donation history, eligibility, and vital signs.

Schedule donation appointmentsFind donation centersLocate mobile blood drives

💪 Health & Fitness

Personalized Autoimmune Care

Personalized autoimmune care offering evidence-based nutrition and lifestyle coaching. Connect with board-certified coaches for tailored plans addressing nutrition, sleep, stress, movement, and community support. Designed for those seeking answers beyond traditional medicine.

Personalized 360º care plans1:1 board-certified coachingEvidence-based nutrition guidance

💪 Health & Fitness

free with in-app purchases

by CONWAY HOSPITAL COMMUNITY SERVICES

Manage your health information and connect with your care team on the go. Access medical records, message providers, and request prescription renewals securely.

Secure messaging with providersReview lab resultsRequest prescription renewals

Streamline your plasma donation experience. Complete health screenings online, skip lines, and manage your rewards to earn extra points redeemable for cash. Find donation centers, get tips, and connect with customer service.

Complete online health screeningSkip kiosk lineActivate iGive Rewards

free with in-app purchases

Hematology Outlines Atlas

Hematology Outlines Atlas

Hematology Outlines Atlas

H H Rashidi MD & J C Nguyen MD

This medical education app offers a comprehensive hematology atlas and glossary. It visually explores normal and abnormal blood cells, their morphology, and clinical relevance. Interactive tools and 3D diagrams enhance learning for students and professionals.

Interactive comparison toolQuick search tool3D diagrams of blood cells

Schedule and manage blood donation appointments. Find nearby blood drives and donor centers. Access your donor ID, view donation history, test results, and eligibility information.

Schedule and manage appointmentsFind blood drives and donor centersAccess online donor ID card

💪 Health & Fitness

BCBSMA MyBlue Member App

BCBSMA MyBlue Member App

BCBSMA MyBlue Member App

by Blue Cross Blue Shield of Massachusetts

Manage your health plan easily with this app. Access benefits, review claims, find care options, and manage prescriptions. Instantly get digital ID cards and connect with care providers virtually.

Understand and use benefitsReview claim detailsPersonalized care options

Pathophysiology of Disease: An Introduction to Clinical Medicine Lange Flashcards

Pathophysiology of Disease: An Introduction to Clinical Medicine Lange Flashcards

Pathophysiology of Disease: An Introduction to Clinical Medicine Lange Flashcards

This app provides a comprehensive review of disease processes, organized by body systems. It presents clinical case studies with disease mechanisms, signs, symptoms, and treatment rationales. Study modes, quizzes, and progress tracking help optimize preparation for medical exams.

Disease process review by body systemClinical case studiesNormal structure and function

free with in-app purchases

Proesis Bio Donor

Proesis Bio Donor

Proesis Bio Donor

Plasma Donor Mobile Access

This app facilitates plasma donation by allowing users to easily sign up, schedule appointments, and manage their rewards. It connects donors with recipients to show the impact of their contributions, aiming for a rewarding and convenient donation experience.

Donor registrationAppointment schedulingRewards management

Draw it to Know it

Draw it to Know it

Draw it to Know it

Medical & Biological Sciences

This educational resource offers animated video tutorials, detailed notes, and quizzes to help students master medical and biological sciences. It includes drawing tools, flashcards, and subject exams for comprehensive learning and review.

Animated, narrated video tutorialsDetailed notes with glossaryClinical correlations

Telehealth, tests, & treatment

Access convenient healthcare from your phone. Get telehealth appointments for various health concerns, manage your at-home lab tests with expert guidance, and view physician-reviewed results. Your journey to better health is made affordable and easy.

Telehealth appointments for various health concernsAt-home lab test collection supportPhysician-reviewed test results

💪 Health & Fitness

free with in-app purchases

FAQ about Called To B

Are there free called to b apps for iPhone?

Yes — 20 of the top called to b apps we rank are free to download, including Called To B and Rythm Health.

Does Called To B have ads or in-app purchases?

Called To B shows ads and has no in-app purchases, according to its App Store listing as of October 2026.

How many called to b apps are on the App Store?

We track 250+ called to b apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.