Legal · head to head
Didomi vs Tabs3

Didomi
Legal
Google-certified and IAB TCF consent management across web, mobile and connected TV
- From
- On request
- Rated
- -

Tabs3
Legal
Billing, trust and general ledger accounting for small and mid-sized US law firms
- From
- $69/month
- Rated
- -
The short version
- Each has a real cost: Didomi pricing is based on monthly unique visitors and is not published, so a large publisher cannot estimate cost before entering a sales process, and traffic spikes translate directly into billing surprises.; Tabs3 the interface follows Windows desktop conventions from an earlier era, so new fee earners and staff take longer to train than they would on a browser-based competitor.
- They diverge on capability: Didomi covers Google CMP certification, Tabs3 covers Tabs3 Billing.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which Didomi and Tabs3 actually diverge.
Identical on both: free tier (No), user rating (Not yet rated), category (Legal).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Didomi
- Google CMP certification
- IAB TCF support
- Connected TV and OTT
- Mobile SDKs
- Consent proof storage
- Preference centre
- Consent analytics
- Global privacy regimes
Only in Tabs3
- Tabs3 Billing
- Trust accounting
- General ledger and accounts payable
- PracticeMaster
- On-premises or cloud subscription
What people use each for
The jobs each tool is most often brought in to do.
Didomi
- A European publisher whose Google Ad Manager revenue is withheld without a Google-certified CMP integrated with Consent Modenot Tabs3
- A broadcaster collecting consent on connected TV apps, where certified CMP options are very limitednot Tabs3
- A multinational advertiser needing one consent signal honoured consistently across web, iOS and Android propertiesnot Tabs3
- A group that must produce consent evidence to a data protection authority following a complaintnot Tabs3
Tabs3
- Small firms billing hourly that want billing and the firm general ledger in one system rather than reconciling twonot Didomi
- Practices that must run three-way trust reconciliation without a separate bookkeeping packagenot Didomi
- Firms that need an on-premises deployment because of client or insurer restrictions on cloud-hosted matter datanot Didomi
- Long-established practices replacing a decades-old billing system while keeping accounting in housenot Didomi
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Didomi
- Pricing is based on monthly unique visitors and is not published, so a large publisher cannot estimate cost before entering a sales process, and traffic spikes translate directly into billing surprises.
- Consent banners depress measurable traffic by design, and Didomi cannot prevent that, so publishers moving from a non-compliant banner should expect an immediate drop in tracked users and attributable conversions.
- Certification is a moving target: Google and IAB update requirements periodically and each version change forces integration work on your side, not only on the vendor's.
- Connected TV consent collection depends on the app platform and remote control interface, and implementations are considerably more involved than a web banner, often requiring per-platform development.
- The wider privacy suite beyond consent is thinner than dedicated privacy platforms, so an organisation needing data subject rights automation and data mapping usually buys a second vendor anyway.
Tabs3
- The interface follows Windows desktop conventions from an earlier era, so new fee earners and staff take longer to train than they would on a browser-based competitor.
- On-premises deployment puts backup, disaster recovery, server upgrades and patching on the firm, which small practices without IT support routinely underestimate.
- It is built around hourly and flat fee billing, so a contingency practice tracking case costs and settlement disbursements will find the case financial model a poor fit.
- PracticeMaster case management is priced separately from billing, so the advertised per-user rate is not what a firm wanting matter management actually pays.
- Choosing the on-premises option no longer avoids a subscription, because it is billed per user per month like the hosted version.
Pricing, plan by plan
Didomi
On request- Didomi CMP$undefined/year
- Google-certified CMP for web, mobile and CTV
- IAB TCF registered
- Consent proof storage and analytics
Tabs3
$69/month- OnSite Subscription$69/month
- Deployed on the firm server
- Billing, trust accounting and general ledger
- PracticeMaster add-on at 32 USD per user per month
- Tabs3 Cloud$89/month
- Hosted by the vendor
- Billing, trust accounting and general ledger
- PracticeMaster add-on at 35 USD per user per month
Which should you pick?
Choose Didomi if
- You need google cmp certification.
- You work on Web, iOS, Android, Connected TV, API.
- You also want iab tcf support.
Choose Tabs3 if
- You need tabs3 billing.
- You work on Windows, Web, iOS, Android.
- You also want trust accounting.
Questions people ask
- Is Didomi or Tabs3 better?
- Neither clearly leads. Didomi starts at On request and Tabs3 at $69/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Didomi or Tabs3?
- Didomi starts at On request and Tabs3 at $69/month.
- Does Didomi or Tabs3 run on more platforms?
- Didomi runs on Web, iOS, Android, Connected TV, API. Tabs3 runs on Windows, Web, iOS, Android.
- What is Didomi best used for?
- Didomi is most often used for a european publisher whose google ad manager revenue is withheld without a google-certified cmp integrated with consent mode, a broadcaster collecting consent on connected tv apps, where certified cmp options are very limited, a multinational advertiser needing one consent signal honoured consistently across web, ios and android properties, a group that must produce consent evidence to a data protection authority following a complaint. Of those, a european publisher whose google ad manager revenue is withheld without a google-certified cmp integrated with consent mode and a broadcaster collecting consent on connected tv apps, where certified cmp options are very limited are not what Tabs3 is typically brought in for.
- What can Didomi do that Tabs3 cannot?
- Didomi covers Google CMP certification, IAB TCF support, Connected TV and OTT, Mobile SDKs. Tabs3 covers Tabs3 Billing, Trust accounting, General ledger and accounts payable, PracticeMaster.
Answered from the vendors’ own pages
Didomi: Is Didomi Google-certified?
Yes, for web, mobile and connected TV, and the certification has been renewed across multiple years.
Tabs3: Is Tabs3 right for a personal injury firm working on contingency?
No. It is built for hourly and flat fee billing with a firm general ledger. A contingency practice needs case cost tracking and settlement disbursement handling, which is what CASEpeer and Filevine are built around.
Didomi: Does it support IAB TCF?
Yes, it is a registered TCF CMP, currently supporting version 2.2 and later revisions.
Tabs3: Can I still buy Tabs3 as a perpetual licence?
No published perpetual price exists. The on-premises option, called OnSite Subscription, starts at 69 USD per user per month, with the hosted Tabs3 Cloud starting at 89 USD per user per month.
Didomi: What does it cost?
Not published. Pricing is based on monthly unique visitors and quoted.
Tabs3: Does it replace QuickBooks?
For most firms yes. It includes a double-entry general ledger and accounts payable, which is the usual reason firms choose it over billing-only products.
Didomi: Where is consent data stored?
Didomi is a French company and offers European storage, which matters for procurement teams weighing supervisory jurisdiction.
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