--- title: Castor Reviews meta\_title: 'Castor Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 126 reviews by the users' company size, role or industry to find out how Castor works for a business like yours. aggregate\_rating: rating\_value: 4.6 review\_count: 126 scale: '5' date\_modified: '2026-08-10' parent\_category: name: Clinical Research url: https://www.g2.com/categories/clinical-research --- # Castor Reviews & Product Details Visit Website Castor is a leading cloud-based clinical data platform designed to democratize research and streamline the complexities of decentralized, hybrid, and traditional clinical trials. Trusted by academic institutions, biotech, and pharmaceutical companies worldwide, Castor enables researchers to capture high-quality data and accelerate study timelines through a modular, human-centered ecosystem.   Our plug-and-play platform seamlessly integrates the four critical components of modern clinical research: Electronic Data Capture (EDC): A user-friendly, rapid-deployment EDC system that allows researchers to build and launch studies in a matter of clicks, not months, ensuring robust data integrity and security.   eConsent: A flexible electronic consent solution that simplifies patient enrollment and improves comprehension, supporting remote and on-site recruitment strategies to maximize participation.   eCOA (Electronic Clinical Outcome Assessment): Intuitive tools for capturing Patient-Reported Outcomes (PROs) directly from participants, enhancing engagement and retention while reducing the burden of data entry. Real-World Evidence (RWE): Advanced capabilities to capture and unify real-world data from wearables, medical devices, and EHRs, providing a holistic view of patient health beyond the clinical setting.   By prioritizing a "participant-first" approach, Castor improves the trial experience for both researchers and patients. From rapid study build and enrollment to final analysis, Castor delivers the speed, scalability, and compliance needed to drive successful outcomes in the evolving landscape of clinical research. * * * Product Website Castor Seller [Castor EDC](https://www.g2.com/sellers/castor-edc) Discussions [Castor Community](https://www.g2.com/products/castor-edc-castor/discuss) Languages Supported English, Dutch Solution Type All-in-One Overview by Laura McLoughlin Show More ## Value at a Glance Averages based on real user reviews. ### Time to Implement 2 months [ View More Pricing Information ](https://www.g2.com/products/castor-edc-castor/pricing) CN chyane n. Small-Business (50 or fewer emp.) 11/16/2023 "User Friendly" 5/5 What do you like best about Castor? The system is user friendly, easy to search with several filters. Review collected by and hosted on G2.com. What do you dislike about Castor? There is nothing that stands outas a dislike regrading Castor Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Castors data collection benifts the patients with the option of this testing being proven useful. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller MB Maruzzella B. Small-Business (50 or fewer emp.) 11/21/2023 "Easy access to accurate information" 5/5 What do you like best about Castor? Easy to use and well organized information Review collected by and hosted on G2.com. What do you dislike about Castor? The time zone change generates information on a different date Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Participant information is very well organized Review collected by and hosted on G2.com. Show More 12/5/2023 Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller CC Channarong C. Small-Business (50 or fewer emp.) 8/10/2023 "Simple and smart EDC Fast Updates" 5/5 What do you like best about Castor? CASTOR EDC send me a great experience. Simple UI. Smart features. And update to responding user suggestions. Review collected by and hosted on G2.com. What do you dislike about Castor? If I had many repeating data in one subject the page bit slow when open and close in repeating data. Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? CastorEDC can help me to conducting clinical trials with quality. Review collected by and hosted on G2.com. Show More 10/15/2023 Current UserValidated ReviewerIncentivizedSource: G2 Gives Campaign CL Carlos M L. Small-Business (50 or fewer emp.) 11/8/2023 "Practical. Easy navigation. Simplified format" 5/5 What do you like best about Castor? The navigation through the CRFs are smooth Review collected by and hosted on G2.com. What do you dislike about Castor? Quries reamain "red" after answered or resolved and create a bit of confusion needed to go back to see if is something pending Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Less paper work. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller KB Kristen B. Small-Business (50 or fewer emp.) 9/14/2023 "Great overall system" 5/5 What do you like best about Castor? Castsor is easy to use and navigate. It makes my job so much easier Review collected by and hosted on G2.com. What do you dislike about Castor? I like everything Castor has to offer and would not change any of it Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Castor allows me to store information and gives the sponsors and monitors real time access to the information which helps trouble shoot any issues that we may be having on site. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller CL Celine L. Small-Business (50 or fewer emp.) 8/26/2023 "Easy to handle, a lot of possibilities" 4/5 What do you like best about Castor? possibility to give orders to send questionnaires in the future possibility to build in multiple answers to 1 question Review collected by and hosted on G2.com. What do you dislike about Castor? You need to understand how things work (eg finding completed questionnaires). Maybe that could be explained better in advance. Although this is not due to CASTOR itself.... Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Sending questionnaires to the patient. All patient information in 1 place and ultimately also the results of the test in 1 place Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Medical Practice](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Medical Practice") UM Verified User in Medical Practice Enterprise (\> 1000 emp.) 11/21/2023 "I think Castor is very user-friendly, both for creating CRFs and for filling them in." 4.5/5 What do you like best about Castor? I find Castor's layout very organized which makes it comfortable and easy to work in. Review collected by and hosted on G2.com. What do you dislike about Castor? It is not possible to add multiple email addresses in a record. This is often required in pediatrics to have both parents of a participant complete a questionnaire. Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Castor helps with the secure storage of patient data, allowing data to be transferred anonymously in an easy way. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of sellerAI Translated ![María Fernanda (Nanda) L.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "María Fernanda (Nanda) L.") ML María Fernanda (Nanda) L. Senior postdoctoral researcher EMERGIA Small-Business (50 or fewer emp.) 9/14/2023 "Data ordered and well kept" 5/5 What do you like best about Castor? I can fill codifyed patients’ data all in order, fast and clearly. I can share the information with partners far away and analyze data together. I can track changes from other contributers. Review collected by and hosted on G2.com. What do you dislike about Castor? The only improvement I would suggest is to add a finder box. Apart of that, I find the app very convenient and useful. Also It may be helpfull to add a suggestion box for changes in configuration of the data Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? Anonymized Data collection from different institutions without sharing internal files and the benefit is that we can analyze data all together Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite on behalf of seller WZ Wendy Z. Small-Business (50 or fewer emp.) 10/3/2023 "what I like about CASTOR" 5/5 What do you like best about Castor? I use CASTOR for several clinical studies. it is very accessible, very easy to use. queries are easy to answer and it is easy to enter a note Review collected by and hosted on G2.com. What do you dislike about Castor? I don't see what could possibly be improved, I would say keep it up Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? / Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller ![Verified User in Hospital & Health Care](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospital & Health Care") AH Verified User in Hospital & Health Care Enterprise (\> 1000 emp.) 11/20/2023 "Very useful datamanagement tool" 4.5/5 What do you like best about Castor? I like the fact that Castor enables you to store your data in a save manner, while at the same time giving the option to sent out questionnaires. Review collected by and hosted on G2.com. What do you dislike about Castor? As a healthcare organization with a small research budget, the pricing is something that could be improved in my opinion. Review collected by and hosted on G2.com. What problems is Castor solving and how is that benefiting you? A safe way to manage our research data. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite on behalf of seller ## Questions about Castor? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about Castor ](https://www.g2.com/products/castor-edc-castor/discussions/new) GU Guest User What is Castor EDC used for? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-castor-edc-used-for) [ View all Discussions ](https://www.g2.com/products/castor-edc-castor/discuss) ## Pricing Insights Averages based on real user reviews. ### Time to Implement 2 months ### Return on Investment 31 months ### Average Discount 15% [ View More Pricing Information ](https://www.g2.com/products/castor-edc-castor/pricing) Castor Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_3a325ce0a148d1e1484014bf7b006b5d/redcap.png "Product Avatar Image") REDCap 4.3/5(221) [ Compare Now ](https://www.g2.com/compare/castor-edc-castor-vs-redcap) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_a5340e1976263d8c56085d6c5de085e0/openclinica.png "Product Avatar Image") OpenClinica 4.2/5(24) [ Compare Now ](https://www.g2.com/compare/castor-edc-castor-vs-openclinica) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_bcf9bee7e4111b4cf58c1e1428647e6c/medrio-edc.png "Product Avatar Image") Medrio EDC 4.2/5(254) [ Compare Now ](https://www.g2.com/compare/castor-edc-castor-vs-medrio-edc) ##### ##### Castor Features Data Management Cloud Security - Electronic Data Capture (EDC) Role-Based User Permissions - Electronic Data Capture (EDC) Query Management - Electronic Data Capture (EDC) Clinical Study Support eCRFs - Electronic Data Capture (EDC) Audit Trail - Electronic Data Capture (EDC) Data Capture - Electronic Data Capture (EDC) [ View More Features ](https://www.g2.com/products/castor-edc-castor/features) ## Top-Rated Alternatives [ ![Medrio EDC](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Medrio EDC") Medrio EDC 4.2/5(254) ](https://www.g2.com/products/medrio-edc/reviews) [ ![REDCap](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "REDCap") REDCap 4.3/5(221) ](https://www.g2.com/products/redcap/reviews) [ ![OpenClinica](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "OpenClinica") OpenClinica 4.2/5(24) ](https://www.g2.com/products/openclinica/reviews) [ View All Alternatives ](https://www.g2.com/products/castor-edc-castor/competitors/alternatives) ##### Categories on G2 [Electronic Data Capture (EDC)](https://www.g2.com/categories/electronic-data-capture-edc) ##### Explore More [Best budget-friendly audit management system](https://www.g2.com/discussions/what-s-the-best-budget-friendly-audit-management-system)[Which lead retrieval systems have the strongest integrations with HubSpot and Salesforce so captured leads flow directly into the CRM without a CSV export step?](https://www.g2.com/discussions/which-lead-retrieval-systems-have-the-strongest-integrations-with-hubspot-and-salesforce-so-captured-leads-flow-directly-into-the-crm-without-a-csv-export-step)[What platform integrates incident response with SIEM tools?](https://www.g2.com/discussions/what-platform-integrates-incident-response-with-siem-tools) [Best cloud-based EDI solution](https://www.g2.com/discussions/what-s-the-best-cloud-based-edi-solution)[Top-rated HCM platforms for talent management](https://www.g2.com/discussions/what-are-the-top-rated-hcm-platforms-for-talent-management)[Pros and Cons Details](https://www.g2.com/products/castor-edc-castor/reviews?qs=pros-and-cons) [Show MoreShow Less](javascript:void(0);)