GetApp offers objective, independent research and verified user reviews. We may earn a referral fee when you visit a vendor through our links.

Our commitment

Independent research methodology

Our researchers use a mix of verified reviews, independent research, and objective methodologies to bring you selection and ranking information you can trust. While we may earn a referral fee when you visit a provider through our links or speak to an advisor, this has no influence on our research or methodology.

Learn more

Verified user reviews

GetApp maintains a proprietary database of millions of in-depth, verified user reviews across thousands of products in hundreds of software categories. Our data scientists apply advanced modeling techniques to identify key insights about products based on those reviews. We may also share aggregated ratings and select excerpts from those reviews throughout our site.

Our human moderators verify that reviewers are real people and that reviews are authentic. They use leading tech to analyze text quality and to detect plagiarism and generative AI.

Learn more

How GetApp ensures transparency

GetApp lists all providers across its website—not just those that pay us—so that users can make informed purchase decisions. GetApp is free for users. Software providers pay us for sponsored profiles to receive web traffic and sales opportunities. Sponsored profiles include a link-out icon that takes users to the provider’s website.

Learn more

Castor EDC vs OpenClinica Comparison (2026)

Add to Compare

Compare similar apps

Google Forms

4.7

Jotform

4.7

FormAssembly

4.5

Good recommendations?

Castor EDC

OpenClinica

Overview

The only GCP & 21 CFR compliant system that's affordable for every researcher and has all the features of expensive systems. Start now.

OpenClinica is a compliant, all-in-one clinical data management platform offering electronic data capture with collaborative drag and drop interface for designing studies, randomization and supply management, patient reported outcomes (ePRO & eCOA), plus reporting tools with chart visualizations

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Video & Screenshots

Pricing

Starting from

No pricing info

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

1000

Per month

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.7

204

141

Value for money

Ease of use

Features

Customer support

90%

would recommend this app

4.6

Value for money

Ease of use

Features

Customer support

85%

would recommend this app

Pros

“The option to come back and add more answers to a multiple-choice question while still working on the form (this is not a change to an answer but merely an addition of data). If I complete a form and later modify the contents of more than one question, the messages should be specific to each change rather than general for the entire page, since the reasons for each change might be different.”

David P.

Research technician

“I’ve been working with several EDC instruments and in Castor I’ve found an all in one tool with randomization, monitoring, high security level data storing, and a great flexibility to customize the eCRF.”

Javier M.

“In particular the survey was well designed to perform real-time quality assessment to promote completion of each section and provide feedback if answers were unclear. If there are any problems, human staff were readily available to resolve them.”

WILLIAM M.

Practicing physician. Director of clinical cancer research

Pros

“Our research on the efficacy and safety of medications was supported by OpenClinica's reporting and analytics capabilities, which gave us insights into patient demographics, treatment outcomes, and adverse events.”

Angelica B.

University Intern

“The support provided by the Openclinica team cannot be beat. If I may list two things, the OC system is incredibly user friendly.”

Adam P.

Data Manager

“Some training sessions go really well, especially when you are with someone hire up on the support team, but there have been many sessions where the trainer is referring to a manual to instruct me on my question and I lose a lot of my "training hours" waiting for them to figure it out and then pass on the information.”

Bethany F.

CDM II

Cons

“Also, I use an Ipad to log in to castor most of the times and I am not sure that when I need to input numbers on multiple fields the keyboard doesn't stay in numbers and I have to constantly swap from letters to numbers.”

Evita P.

Senior Research Nurse

“Sometimes the automatic track changes is a bit too sensitive: when I'm filling in the questionnaire and make 1 mistake, I have to change everything and explain it for every changed field.”

Lauren R.

Physician PhD-student

“The font size is too small.”

Mona I.

Research Analyst

Cons

“The randomization tool is pretty sophisticated but it also costs extra and whenever you need to do updates to the tool it's a much more difficult process then simply publishing it to test.”

Bethany F.

CDM II

“This also adds layers of difficulty to the testing.”

Bethany F.

CDM II