OneTrust is an enterprise privacy and GRC platform that includes vendor risk management, third-party processor inventory, DPA workflows, cookie consent, and dozens of other modules. Registora is a focused tool that only handles the subprocessor piece - host the page, watch every upstream provider, and draft the GDPR Article 28(2) notice when one changes. If you are not running an enterprise privacy programme, OneTrust is wildly oversized for the job.
Key facts
01OneTrust is an enterprise privacy and GRC platform with dozens of modules - cookie consent, DSAR automation, vendor risk, data mapping, breach response, privacy impact assessments. Subprocessor disclosure is one small slice of the third-party-vendor management surface.
02Registora is a focused tool. It only hosts the public subprocessor register, monitors upstream providers daily, and drafts the GDPR Article 28(2) customer notice when one changes.
03OneTrust is priced for organisations running a complete enterprise privacy programme - typically a five- to six-figure annual contract. Registora starts free and the relevant paid tier is $19-$49 a month.
04For a public subprocessor page and an Art. 28(2) notification workflow on a SaaS company's own domain, OneTrust is not the design centre. That is what Registora is built for.
§ I
What each product does
OneTrust is an enterprise privacy and GRC platform. The product surface covers cookie consent management, data subject access request (DSAR) automation, vendor risk assessment, third-party processor inventory, data mapping, breach response workflow, privacy impact assessments, regulatory reporting, and many other modules. It is sold to mid-market and enterprise organisations that run a complete privacy programme.
Registora is a single-purpose tool. It hosts your public subprocessor register on your own subdomain (or custom domain on Growth and DORA plans), monitors the published subprocessor pages of every major upstream provider you use daily, amends your register when one of them changes, and drafts the GDPR Article 28(2) email so you can approve and send it to your customer contact list.
§ II
Side by side
The table compares the two on the subprocessor disclosure problem specifically. OneTrust does many things this table does not measure - DSAR handling, cookie consent, data mapping, and so on. The question this page answers is which tool to use to maintain a current public subprocessor page and notify customers when it changes.
Feature
OneTrust
Registora
Product scope
OneTrustEnterprise privacy and GRC suite - cookie consent, DSAR automation, vendor risk, third-party inventory, DPA workflow, data mapping, breach response, privacy impact assessments, and many more modules.
OneTrustNot a primary surface. OneTrust focuses on internal third-party inventory, vendor onboarding workflows, and DPA tracking - the public-facing page is typically published elsewhere.
RegistoraThe whole product. Public-facing register on your subdomain or custom domain.
Upstream provider monitoring
OneTrustVendor risk module ingests vendor data from questionnaires and ratings feeds. Continuous monitoring of providers' published subprocessor pages is not the design centre.
RegistoraScrapes 18+ major upstream provider pages daily (Stripe, AWS, Vercel, OpenAI, Anthropic, Resend, Twilio, ...) and amends your register when any of them changes.
Art. 28(2) change notification
OneTrustDPA workflow tracks vendor obligations; notification of your downstream customers when an upstream changes is your team's process to design and run.
RegistoraAuto-drafts the Art. 28(2) email per change, localised templates (EN/DE/FR/ES), one-click approve + send via Resend to your contact list.
Time to first public page
OneTrustMulti-week to multi-month implementation typical. Sales-led onboarding.
RegistoraSign up, add your subprocessors, point a DNS CNAME if you want a custom domain. The page is live the same day.
Pricing posture
OneTrustEnterprise platform pricing - typically five to six figures annually depending on modules and seats.
RegistoraFree for five subprocessors. Starter $19/mo. Growth $49/mo. DORA $149/mo. Self-serve checkout.
Right fit
OneTrustMid-market and enterprise organisations running a full privacy and GRC programme - DSARs, cookie consent, vendor risk, internal data mapping, regulatory reporting.
RegistoraTeams that need a current public subprocessor page and an Art. 28(2) notification process. Nothing more.
§ III
When to pick OneTrust
-You are running an enterprise privacy programme. Cookie consent across many web properties, DSAR automation, internal data inventory, vendor risk reviews at scale, privacy impact assessments, regulatory reporting - if most of these are real workloads for your team, an enterprise platform makes sense.
-You need internal third-party inventory, not just a public page. OneTrust's vendor management module is designed for internal records, contracts, DPAs, and risk scores - not for the customer-facing list on your own domain.
-A multi-region privacy team is the buyer. OneTrust is built for organisations with a dedicated privacy function and a budget to match.
§ IV
When to pick Registora
-The public subprocessor page is the actual ask. Your security reviews and customer DPAs reference a current published list and an Art. 28(2) notification process. That is what Registora delivers - hosted page, daily monitoring, drafted notification.
-You want time-to-page in hours, not months. Self-serve signup, catalogue picker for the providers you use, optional CNAME for a custom domain. The page is live the same day.
-SMB pricing is the right shape. $19-$49/month covers the hosted page, upstream monitoring, customer notification drafts, DPA export, custom domain, REST API, and webhooks. No enterprise contract.
§ V
Pairing them
Larger teams sometimes run both. OneTrust manages the internal vendor and DPA record; Registora powers the public-facing subprocessor page on the company's own domain, with daily monitoring of the upstream chain. The Registora REST API and webhooks make it easy to sync changes into an internal record. For the practical setup steps, the build-a-subprocessors-page guide is the place to start.
FAQ
Frequently asked questions
Does OneTrust publish a public subprocessor page?
OneTrust's primary surface is the internal vendor and third-party inventory used by privacy and compliance teams - not the customer-facing public page on your own domain. Many OneTrust customers publish the public subprocessor list separately and use OneTrust to manage the internal record, DPA tracking, and vendor risk reviews.
When does OneTrust make sense?
When you are running a complete enterprise privacy programme - cookie consent banners across many properties, automated DSAR handling, internal data mapping, vendor risk assessments at scale, privacy impact assessments, breach response workflows. OneTrust is built for that surface area.
When does Registora make sense?
When the actual ask is a current, public subprocessor page on your own domain, with daily upstream monitoring and an Art. 28(2) notification mechanism. Most B2B SaaS companies need that and nothing else from the privacy-tool category right now.
Does Registora replace OneTrust's cookie consent or DSAR features?
No. Registora does not handle cookie consent banners, data subject access requests, breach notifications, or internal data mapping. It is a focused product for the public-facing subprocessor register and the Art. 28(2) notification workflow.
Can Registora's data flow into OneTrust?
Yes. The REST API exposes the current subprocessor list and change events; the Standard Webhooks endpoint pushes change events on the subprocessor.changed topic. A simple integration can sync the public page state into a OneTrust internal record.
Comparison facts cited above are based on OneTrust's public-facing product description and pricing posture at the time of writing. Where the competitor evolves the product, this page may drift from current state. Not legal advice.
Your turn
Try the focused tool first.
Free tier hosts your subprocessor page on your subdomain, with up to five providers. Daily monitoring of the major upstream chains. The customer notice gets drafted when one of them changes.