Castor vs Viedoc Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Castor

0.0 (0 reviews)

Castor is a comprehensive clinical trial platform providing electronic data capture and decentralized trial solutions to help researchers streamline data collection and accelerate medical breakthroughs.

Starting at Free
Free Trial 0 days
VS

Viedoc

0.0 (0 reviews)

Viedoc is a unified eClinical solution designed to accelerate clinical trials through integrated electronic data capture, trial management, and real-time data monitoring for life science researchers.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature Castor Viedoc
Website castoredc.com viedoc.com
Pricing Model Freemium Custom
Starting Price Free Custom Pricing
FREE Trial ✓ 0 days free trial ✘ No free trial
Free Plan ✓ Has free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment cloud mobile saas mobile
Integrations Epic Cerner Fitbit Garmin Apple Health Medidata Salesforce SAS R Microsoft Excel MedDRA WHODrug
Target Users small-business mid-market enterprise small-business mid-market enterprise
Target Industries healthcare healthcare pharmaceuticals biotechnology
Customer Count 0 0
Founded Year 2012 2003
Headquarters Amsterdam, Netherlands Uppsala, Sweden

Overview

C

Castor

Castor provides a unified platform to help you run faster, more efficient clinical trials. You can manage every stage of your research, from designing your study and capturing patient data to managing consent and integrating wearable device information. The software replaces manual, paper-based processes with secure, cloud-based workflows that ensure your data remains high-quality and compliant with global regulatory standards like GDPR and HIPAA.

You can build your study in hours rather than weeks using a drag-and-drop interface that requires no coding knowledge. Whether you are conducting a small academic study or a large-scale international commercial trial, the platform scales to meet your needs. It focuses on reducing the burden on both researchers and participants through user-friendly interfaces and remote enrollment capabilities.

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Viedoc

Viedoc provides a unified platform to manage every stage of your clinical trials, from initial study design to final data reporting. You can replace fragmented systems with a single interface that handles electronic data capture (EDC), clinical trial management (CTMS), and electronic trial master files (eTMF). This integration helps you maintain data integrity while reducing the time spent on manual data entry and reconciliation across different providers.

The platform is built to scale with your research needs, whether you are running a small early-phase study or a complex global trial. You can manage patient-reported outcomes directly through mobile devices and use built-in coding and logistics tools to keep your study on track. By centralizing your clinical operations, you gain better visibility into trial progress and can make faster, data-driven decisions to bring new treatments to market.

Overview

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Castor Features

  • Form Builder Build complex electronic Case Report Forms (eCRFs) quickly using a visual drag-and-drop editor without writing any code.
  • eConsent Enroll participants remotely and securely with digital informed consent forms that they can sign from any device.
  • Real-time Validations Set up automated data checks to catch errors at the point of entry and ensure your trial data is clean.
  • ePRO & Surveys Collect data directly from your patients through automated email surveys and mobile-friendly questionnaires to improve engagement.
  • Randomization Implement complex randomization schedules directly within your study workflow to maintain the scientific integrity of your trial.
  • Monitoring Dashboard Track your study progress and site performance in real-time with visual dashboards that highlight missing data or queries.
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Viedoc Features

  • Viedoc Clinic. Capture and manage clinical data efficiently with an intuitive interface designed for site investigators and data managers.
  • Viedoc Designer. Build your entire study workflow visually, including complex validation rules and forms, without needing advanced programming skills.
  • Viedoc Me. Collect data directly from patients using their own devices to improve engagement and ensure high-quality primary outcomes.
  • Viedoc Logistics. Manage your clinical supply chain and track investigational products from the warehouse to the patient in real-time.
  • Viedoc TMF. Maintain a complete and compliant electronic trial master file with automated document filing and easy inspection readiness.
  • Viedoc Reports. Monitor your trial performance with visual dashboards that highlight recruitment trends, data queries, and site productivity.

Pricing Comparison

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Castor Pricing

Free (Academic)
$0
  • Available for non-commercial research
  • Unlimited data points
  • Standard EDC features
  • Community support
  • Self-service study building
V

Viedoc Pricing

Pros & Cons

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Castor

Pros

  • Extremely intuitive interface for non-technical users
  • Fast study setup compared to traditional EDC systems
  • Excellent free tier for academic and non-profit research
  • Responsive and helpful customer support team

Cons

  • Advanced logic requires some time to master
  • Reporting tools can be limited for complex datasets
  • Mobile app experience is less polished than desktop
A

Viedoc

Pros

  • Highly intuitive interface reduces training time for site staff
  • Fast study setup compared to traditional legacy EDC systems
  • Excellent mobile experience for patient-reported outcomes
  • Unified platform eliminates the need for complex third-party integrations
  • Responsive customer support with deep clinical industry expertise

Cons

  • Custom pricing makes it difficult for quick budget planning
  • Advanced reporting features may require a learning curve
  • Limited flexibility for highly unconventional non-clinical workflows
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