Castor vs Florence SiteLink 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

Florence SiteLink

0.0 (0 reviews)

Florence SiteLink is a clinical trial software platform that connects research sites and sponsors to streamline document management, remote monitoring, and study startup workflows for faster medical advancements.

Starting at --
Free Trial NO FREE TRIAL

Quick Comparison

Feature Castor Florence SiteLink
Website castoredc.com florencehc.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 cloud mobile
Integrations Epic Cerner Fitbit Garmin Apple Health Medidata Salesforce Veeva Vault Medidata Oracle Health Sciences Microsoft Teams Slack Box Dropbox
Target Users small-business mid-market enterprise mid-market enterprise
Target Industries healthcare healthcare
Customer Count 0 0
Founded Year 2012 2014
Headquarters Amsterdam, Netherlands Atlanta, USA

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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Florence SiteLink

Florence SiteLink helps you bridge the gap between clinical research sites and sponsors by creating a unified digital workspace. Instead of relying on manual paper processes or fragmented email chains, you can manage your electronic Investigator Site Files (eISF) and Trial Master Files (eTMF) in a centralized, compliant environment. This allows you to accelerate study startup and maintain oversight without the administrative burden of traditional methods.

You can facilitate remote monitoring and real-time document exchange, ensuring that your research stays on track and meets strict regulatory requirements. The platform is designed for clinical trial professionals at research sites, pharmaceutical companies, and CROs who need to improve transparency and efficiency. By digitizing your workflows, you reduce the risk of compliance errors and speed up the delivery of new treatments to patients.

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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Florence SiteLink Features

  • Remote Monitoring. Grant monitors secure access to study documents remotely so you can complete source data verification without on-site visits.
  • Electronic Signatures. Execute clinical documents quickly using Part 11-compliant digital signatures that integrate directly into your existing research workflows.
  • Automated Redaction. Protect patient privacy by automatically redacting sensitive information from documents before sharing them with external study monitors.
  • Centralized eISF. Organize all your site-specific study documents in a digital folder structure that mirrors standard regulatory filing requirements.
  • Real-time Collaboration. Communicate directly with sponsors and CROs within the platform to resolve queries and track document approvals instantly.
  • Audit Trail Tracking. Maintain a permanent, time-stamped record of every document action to ensure your study remains inspection-ready at all times.

Pricing Comparison

C

Castor Pricing

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

Florence SiteLink Pricing

Pros & Cons

M

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

Florence SiteLink

Pros

  • Significantly reduces time spent on physical document filing
  • Simplifies remote monitoring visits for sponsors and sites
  • User-friendly interface designed specifically for clinical workflows
  • Strong compliance features for HIPAA and GDPR standards

Cons

  • Initial setup requires significant time for document migration
  • Pricing is not transparent for smaller research sites
  • Advanced reporting features have a slight learning curve
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