Capture vs Viedoc: comparing two EDC platforms for European studies
Viedoc is an established EDC from Sweden used by sponsors and CROs internationally. Capture offers EU hosting in Frankfurt, a self-serve build with AI drafting, and EDC, ePRO, eConsent and randomization in one study.
- Free sandbox, no sales call
- EDC, ePRO, eConsent, randomization
- Part 11-aligned controls
Free sandbox · No credit card · 21 CFR Part 11 aligned
Tests
5
Hands-on
4
To confirm
1
- Rebuild one of your real formsSame test, both systems
- Break an edit check and follow the querySame test, both systems
- Complete a questionnaire on a phoneSame test, both systems
- Sign a test eConsentSame test, both systems
- Compare total cost for your studyAsk both vendors
Capture vs Viedoc: the short version
- Viedoc, from Uppsala, Sweden, offers an EDC with patient-facing and other modules, used by sponsors and CROs internationally.
- European sponsors and CROs often shortlist Viedoc and Capture together because both offer EU hosting and GDPR-aware data handling.
- Capture's free sandbox lets you build and test the full study before any contract; you pay only when you go live.
- Capture separates identifying data from study data at the database layer, with coded participant IDs for sponsor-side users.
- Compare builds, participant tools and exports hands-on with your own protocol.
0
sales calls needed to start building
1
audit trail across EDC, ePRO, eConsent and randomization
Free
sandbox with every feature, no time limit
EU + US
hosting in Frankfurt or N. Virginia
The comparison
Data protection answers matter in Europe
For European studies, the data protection review often shapes the platform choice: where data is hosted, who can see identifying information, how pseudonymisation works and which sub-processors are involved. Both vendors will be asked these questions, and clear answers shorten start-up.
Capture hosts EU studies in Frankfurt, shows sponsor-side users coded participant IDs, keeps names at the site, and enforces site separation with row-level security. See GDPR compliant clinical trial software and the EU CTR guide.
What to compare
What to test when comparing Capture and Viedoc
| Criterion | Why it matters | Capture |
|---|---|---|
| Study build | Time from protocol to testable study | AI drafts visits and forms from the protocol; your team reviews and approves |
| Hosting | Data residency | EU (Frankfurt) or US (N. Virginia), chosen at setup |
| Identity separation | GDPR data minimisation | PII segregated at the database layer; coded IDs for sponsor users |
| Modules in one study | Reconciliation and vendor count | EDC, ePRO, eConsent, randomization and kits with one audit trail |
| Compliance controls | Part 11 and GCP expectations | Field-level audit trail, re-authenticated e-signatures, role-based access |
| Commercial model | Fit for your study size | Free sandbox; no setup fee; pay only when you go live |
This table shows Capture's answers only. Ask Viedoc for theirs, and confirm current capabilities and terms directly with them.
Self-serve build
Your team builds and amends, with AI doing the drafting
The AI form builder drafts questions or lab tables from a description or an uploaded file, and the AI Study Generator drafts the schedule from your protocol. Nothing is saved without human review. Forms move from draft to approved and are locked for live use, so amendments are deliberate and recorded.
- Ten question types plus repeating table sections.
- Calculated fields such as BMI, BSA, eGFR and QTc.
- Configuration export and import between studies.
Question form
CRF or ePRO
Lab table
Analytes, units, ranges
- Number
1. Systolic blood pressure
Required · Number · mmHg · 0 dp
- Number
2. Diastolic blood pressure
Required · Number · mmHg · 0 dp
- Number
3. Pulse rate
Required · Number · beats/min
- Number
4. Body temperature
Required · Number · °C · 1 dp
- Single choice
5. Position during measurement
Required · Sitting, Supine, Standing
- + 9 more questions
One platform
EDC, ePRO, eConsent and randomization in one study
Sites enter data on locked, approved forms with edit checks that raise queries at entry. Participants complete questionnaires on their own phones and sign eConsent with verified signatures. Randomization and kit management run in the same study, and everything shares one field-level audit trail.
- One participant record across every module.
- No integrations to build or reconcile.
- Phase 1 through Phase 3.
Build the same form in Capture
Free sandbox with every feature. No credit card.
Fit
When Viedoc fits, and when Capture does
Viedoc is often a good fit for CROs and sponsors with established Viedoc processes, trained staff and site networks familiar with it, and for studies that reuse existing Viedoc builds.
Capture fits teams that want to build and test themselves before signing, get a draft from the protocol with AI, and run randomization and kit management in the same study.
Compliance controls
The controls inspectors look for, built in
Every change is written to an append-only, hash-chained audit trail with user, time, old and new value and reason. Electronic signatures require password re-authentication and carry a meaning statement. Roles separate sites, and identifying data is segregated from study data at the database layer.
- Field-level audit trail, never hard deleted.
- Re-authenticated e-signatures.
- Role-based access with site separation.
Weight changed 68.0 to 68.5 kg
Site coordinator · Reason: Transcription error
Query Q-0014 answered on Weight
Site coordinator · Reason: Source checked
Vital signs form locked
Data manager · Reason: Visit cleaned
Switching
Moving from Viedoc to Capture
Move with a new study. Export form specifications and upload them to Capture, where the AI drafts the forms for review. Check that consent versions and participant materials are updated for the new system.
Historical data stays in its original export and is combined at analysis if needed. See how to switch EDC vendors mid-study for when a mid-study move makes sense.
Evaluation
How to compare EDC vendors side by side
Same form in both systems
Build one real form with edit checks.
Site workflow
Enter data, raise and answer a query.
Participant workflow
Consent and a questionnaire on a phone.
Monitoring
Set SDV and review what a monitor sees.
Exports
Data dictionary, codes and labels.
Total cost
Setup, per-site and per-participant fees.
All comparisons
Compare Capture with other platforms
Every comparison uses the same approach: what to test, where each option fits, and Capture's own answers. See all of them on the comparisons hub at /compare.
Is Capture a Viedoc alternative?
Yes, for teams that want a self-serve platform with EDC, ePRO, eConsent and randomization in one study.
Does Capture host data in the EU?
Yes. EU studies can be hosted in Frankfurt, chosen at setup.
Can CROs use Capture for several sponsors?
Yes. Each study is separate, with its own roles and sites.
Can I test Capture before deciding against Viedoc?
Yes. The free sandbox includes every feature with sample data, no credit card and no time limit. You pay only when you go live.
How did you build this comparison?
From public positioning and the criteria teams tell us matter. We state only Capture's own capabilities as fact; confirm Viedoc's current offering with them.
Keep exploring
Related pages
Viedoc alternatives
A broader alternatives guide.
GDPR compliant trial software
Data protection.
Capture vs Castor
EDC, eCOA and eConsent from the Netherlands.
Capture vs Medrio
EDC and eCOA for early-phase and mid-sized studies.
Capture vs OpenClinica
Cloud EDC with an open-source heritage.
Capture vs Clinion
eClinical platform including EDC.
Compare Capture against your shortlist
Free sandbox with every feature. No sales call.