Who each option is best for, and where either supplier is deliberately narrower.
Vendor comparison
GDPR Register vs OneTrust: capability comparison
A side-by-side comparison of GDPR Register and OneTrust across RoPA, DPIA, DSAR, vendor risk, AI governance and evidence workflows - with Acompli shown as a focused, human-approved, evidence-traceable alternative to both for Ireland, UK and EU teams.
GDPR RegisterOneTrustComparisonAcompli alternative
Which public claims, review signals, caveats and capability rows are evidenced.
How much work it takes to implement, maintain and export the privacy record.
The questions a privacy team should ask before switching or shortlisting.
On this page
Key takeaways
- GDPR Register and OneTrust are compared here on public, evidence-framed capability coverage: GDPR Register is evidenced for 15 of 20 tracked capabilities, OneTrust for 19.
- The clearest differences: GDPR Register adds Public pricing; OneTrust adds Consent management, Cookie/tracker scanning, Policy/notice management, Training module, Spreadsheet import.
- Acompli is the focused third option: connected RoPA, DPIA, DSAR, risk, vendor and AI-governance records, each human-approved and traceable to its source evidence, built around GDPR Article 30, the Irish DPC and the UK ICO.
- "Y" means publicly evidenced in the reviewed sources, "N" means not clearly evidenced here (not proof a vendor cannot provide it). Verify live scope, pricing and exports with each vendor.
Comparison workflow
From company profile to shortlist decision
01Short answerGDPR Register vs OneTrust02At a glanceGDPR Register vs OneTrust vs Acompli at a glance03Capability comparisonGDPR Register vs OneTrust: capability by capability04Where each is strongerGDPR Register vs OneTrust: the differences that matter05Shortlisting notesChoosing between GDPR Register, OneTrust and Acompli06Ireland & UKGDPR Register vs OneTrust for RoPA in Ireland and the UK
Market lanechecked
Best-fit buyerchecked
Public strengthschecked
Capability evidencechecked
Overlapchecked
Gapschecked
Exportschecked
Shortlist fitchecked
01Short answer
GDPR Register vs OneTrust
GDPR Register is positioned as: European GDPR compliance platform. OneTrust is positioned as: Enterprise privacy, trust, consent, third-party risk, AI governance and GRC suite.
For an Irish, UK or EU privacy team weighing GDPR Register against OneTrust, Acompli is the focused alternative to both: it keeps RoPA, DPIA, DSAR, risk, vendor and AI-governance records connected and defensible, with every record human-approved and every Article 30 field traceable to the assessment that produced it.
Published by Acompli and last reviewed on 29 June 2026. Capability coverage below is evidence-framed from public sources for all three.
02At a glance
GDPR Register vs OneTrust vs Acompli at a glance
| Decision question | GDPR Register | OneTrust | Acompli |
|---|---|---|---|
| Best fit | Teams looking for a structured, audit-ready GDPR compliance platform centred on RoPA, DPIA, LIA, vendors, risk assessments, breach handling and AI Act, with public pricing | Large enterprises that need a broad privacy automation and trust platform spanning privacy, consent, third-party risk, AI governance and related programmes | DPO-led teams that need connected records, provenance, imported evidence and reviewed outputs across GDPR and AI workflows, anchored in Ireland, the UK and the EU |
| Operating model | A structured, audit-ready EU GDPR compliance platform: RoPA, DPIA, LIA, vendors, risk assessments, breach logs and AI Act workflows | A broad enterprise privacy, trust, consent, third-party-risk and AI-governance suite for global programmes | Connected, evidence-traceable privacy and AI-governance records across RoPA, DPIA, DSAR, risk, vendors, data mapping and code scan |
| When to choose it | Choose GDPR Register when its structured GDPR compliance feature set, breach handling and transparent public pricing match the team's operating needs | Choose OneTrust when enterprise-suite breadth, existing OneTrust investment, partner ecosystem or global programme scale is the primary requirement | Choose Acompli when the comparison turns on evidence provenance, imports, connected outputs and human-reviewed automation |
03Capability comparison
GDPR Register vs OneTrust: capability by capability
Each capability is marked Y (publicly evidenced in the reviewed sources) or N (not clearly evidenced here, which is not proof the vendor cannot provide it). Acompli is shown in the final column.
| Capability | GDPR Register | OneTrust | Acompli |
|---|---|---|---|
| DPIA/PIA assessments | Y | Y | Y |
| RoPA / Article 30 | Y | Y | Y |
| DSAR / privacy rights | Y | Y | Y |
| Data mapping | Y | Y | Y |
| Vendor risk | Y | Y | Y |
| Privacy risk | Y | Y | Y |
| AI governance | Y | Y | Y |
| Consent management | N | Y | N |
| Cookie/tracker scanning | N | Y | N |
| Breach/incident management | Y | Y | N |
| Retention management | Y | Y | Y |
| Policy/notice management | N | Y | N |
| Training module | N | Y | N |
| Approval workflows | Y | Y | Y |
| Audit trail | Y | Y | Y |
| Role-based access control | Y | Y | Y |
| Multi-entity support | Y | Y | Y |
| Spreadsheet import | N | Y | Y |
| PDF/CSV/Excel export | Y | Y | Y |
| Public pricing | Y | N | N |
04Where each is stronger
GDPR Register vs OneTrust: the differences that matter
On the tracked capabilities, GDPR Register and OneTrust overlap heavily; the decision usually turns on the handful of capabilities only one of them evidences, plus depth, jurisdiction fit and price.
- Only GDPR Register (not OneTrust) is evidenced for: Public pricing.
- Only OneTrust (not GDPR Register) is evidenced for: Consent management, Cookie/tracker scanning, Policy/notice management, Training module, Spreadsheet import.
- Acompli's wedge versus both: assessment-fed, evidence-traceable records (every Article 30 field links back to the approved assessment that produced it), human approval on every record, and a per-entity export the DPC or ICO can read without a platform login.
05Shortlisting notes
Choosing between GDPR Register, OneTrust and Acompli
GDPR Register and OneTrust should each be assessed on their published fit above. Acompli belongs on the shortlist where the priority is connected, defensible privacy records that stay current between audits, with a short route from draft to reviewed decision.
- Shortlist GDPR Register or OneTrust where their broader suite, integrations or specific modules match the programme you want to run.
- Shortlist Acompli where the pain is stale RoPA fields, isolated DPIAs, disconnected DSAR files, supplier evidence drift, or risk registers that do not trace back to source evidence.
- Ask all three to demonstrate the same workflow end to end: a new processing activity, its assessment, the RoPA update, supplier evidence, the privacy risk and an exportable audit trail.
06Ireland & UK
GDPR Register vs OneTrust for RoPA in Ireland and the UK
Records of processing activities are required under GDPR Article 30 - a controller record under Article 30(1) and a separate processor record under Article 30(2). In Ireland the Data Protection Commission (DPC) publishes Article 30 guidance; in the UK the ICO sets out what must be documented under UK GDPR.
Whichever of GDPR Register or OneTrust you weigh, the question for an Irish or UK team is the depth of the Article 30 record and how defensibly it exports. Acompli's difference is provenance: every Article 30 field traces back to the approved assessment that produced it, and each legal entity gets a self-contained export the DPC or ICO can read without logging in.
- GDPR Article 30(1) and 30(2) - controller and processor records modelled separately, scoped by legal entity.
- DPC (Ireland) and ICO (UK) Article 30 documentation, with EU and UK GDPR distinguished on one register.
- Per-entity, self-contained export so each subsidiary can answer its own supervisory authority.
Acompli answers
Acompli: the focused alternative to both
Is Acompli an alternative to both GDPR Register and OneTrust?
Acompli is a focused alternative to both GDPR Register and OneTrust for teams that want connected, evidence-traceable RoPA, DPIA, DSAR, risk, vendor and AI-governance records rather than the broadest feature set. Every record is human-approved and every Article 30 field traces back to the approved assessment that produced it, built around GDPR Article 30, the Irish DPC and the UK ICO.
GDPR Register vs OneTrust: which is better for Irish and UK GDPR?
For Irish and UK GDPR the deciding factors are Article 30(1)/(2) coverage, DPC and ICO fit, and a self-contained per-entity export - so the better choice between GDPR Register and OneTrust is the one that documents both controller and processor records and exports them defensibly. Acompli is built specifically around that: EU and UK GDPR distinguished on one register, every field evidence-linked, and an export the DPC or ICO can read without a platform login.
What should I compare when choosing between GDPR Register and OneTrust?
Compare GDPR Register and OneTrust on one real workflow end to end: a new processing activity, its assessment, the resulting Article 30 RoPA update, the supplier evidence, the privacy risk entry and an exportable audit trail. Whether each value is evidenced (the capability table above) matters less than whether the records stay connected and defensible after approval - which is the test Acompli is designed to pass.
Acompli overlap
Related Acompli workflows
GDPR Register vs Acompli
Compare GDPR Register directly with Acompli across RoPA, DPIA, DSAR, risk and vendor records.
Open moduleOneTrust vs Acompli
Compare OneTrust directly with Acompli across RoPA, DPIA, DSAR, risk and vendor records.
Open moduleRoPA management
Maintain Article 30 records that stay linked to approved assessments, systems, suppliers and transfers.
Open moduleAssessments
Run DPIAs, LIAs, TIAs, processor reviews and AI Act assessments with templates, AI support and human approval.
Open moduleCompare GDPR Register, OneTrust and Acompli against a real workflow.
Bring one RoPA, DPIA, DSAR, vendor, risk or AI-governance requirement and map which parts GDPR Register covers, which OneTrust covers, and where Acompli keeps the evidence connected and defensible.