Is Harvey or Tabs3 better?

Neither clearly leads. Harvey 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, Harvey or Tabs3?

Harvey starts at On request and Tabs3 at $69/month.

Does Harvey or Tabs3 run on more platforms?

Harvey runs on Web. Tabs3 runs on Windows, Web, iOS, Android.

What is Harvey best used for?

Harvey is most often used for an amlaw 100 or 200 firm wanting ai-assisted due diligence review across large contract sets, a large corporate legal department needing firm-tuned drafting on its own precedent library, a litigation practice wanting ai research assistance integrated directly with its document management system, a firm large enough to absorb a 25-seat minimum and enterprise contract cost, evaluating ai tools at biglaw scale. Of those, an amlaw 100 or 200 firm wanting ai-assisted due diligence review across large contract sets and a large corporate legal department needing firm-tuned drafting on its own precedent library are not what Tabs3 is typically brought in for.

What can Harvey do that Tabs3 cannot?

Harvey covers Legal research assistant, Contract analysis, Document drafting, Workflow-specific tools. Tabs3 covers Tabs3 Billing, Trust accounting, General ledger and accounts payable, PracticeMaster.

Legal · head to head

Harvey vs Tabs3

Harvey

Legal

AI research and drafting platform for large law firms, sold on enterprise-only seat pricing with no self-service tier and reported contracts from roughly $50,000 to $360,000 a year

From: On request
Rated: -

Full review Website

Tabs3

Legal

Billing, trust and general ledger accounting for small and mid-sized US law firms

From: $69/month
Rated: -

Full review Website

The short version

Each has a real cost: Harvey there is no published pricing anywhere, and no self-service tier at all, so even qualifying for a quote requires an enterprise sales process most small and mid-size firms cannot justify starting.; 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: Harvey covers Legal research assistant, Tabs3 covers Tabs3 Billing.
Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Harvey and Tabs3 actually diverge.

Attributes where Harvey and Tabs3 differ
Attribute	Harvey	Tabs3
Starting price	On request	$69/month
Pricing model	quote	Per user per month
Platforms	Web	Windows, Web, iOS, Android

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 Harvey

Legal research assistant
Contract analysis
Document drafting
Workflow-specific tools
DMS integration
Firm-tuned deployment

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.

Harvey

An AmLaw 100 or 200 firm wanting AI-assisted due diligence review across large contract setsnot Tabs3
A large corporate legal department needing firm-tuned drafting on its own precedent librarynot Tabs3
A litigation practice wanting AI research assistance integrated directly with its document management systemnot Tabs3
A firm large enough to absorb a 25-seat minimum and enterprise contract cost, evaluating AI tools at BigLaw scalenot Tabs3

Tabs3

Small firms billing hourly that want billing and the firm general ledger in one system rather than reconciling twonot Harvey
Practices that must run three-way trust reconciliation without a separate bookkeeping packagenot Harvey
Firms that need an on-premises deployment because of client or insurer restrictions on cloud-hosted matter datanot Harvey
Long-established practices replacing a decades-old billing system while keeping accounting in housenot Harvey

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Harvey

There is no published pricing anywhere, and no self-service tier at all, so even qualifying for a quote requires an enterprise sales process most small and mid-size firms cannot justify starting.
25-seat minimums put it structurally out of reach for solo, boutique and most mid-size firms regardless of interest.
Reported additional platform fees on top of the headline per-seat licence mean the effective total cost is materially higher than the quoted seat price alone suggests.
As a well-funded, fast-growing AI vendor, its product and pricing model are still evolving quickly, which is a real risk for a firm signing a multi-year enterprise contract now.
Being trained and marketed specifically for BigLaw workflows means smaller firms evaluating it are comparing themselves against a product that was not built or priced with them in mind.

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

Harvey

On request

Enterprise (BigLaw)$undefined/year
- No self-service signup, quote-only via sales
- 25-seat minimums commonly reported
- Reported per-seat cost roughly $1,000-2,000/month depending on usage tier

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 Harvey if

You need legal research assistant.
You also want contract analysis.

Harvey review

Choose Tabs3 if

You need tabs3 billing.
You work on Windows, Web, iOS, Android.
You also want trust accounting.

Tabs3 review

Questions people ask

Is Harvey or Tabs3 better?: Neither clearly leads. Harvey 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, Harvey or Tabs3?: Harvey starts at On request and Tabs3 at $69/month.
Does Harvey or Tabs3 run on more platforms?: Harvey runs on Web. Tabs3 runs on Windows, Web, iOS, Android.
What is Harvey best used for?: Harvey is most often used for an amlaw 100 or 200 firm wanting ai-assisted due diligence review across large contract sets, a large corporate legal department needing firm-tuned drafting on its own precedent library, a litigation practice wanting ai research assistance integrated directly with its document management system, a firm large enough to absorb a 25-seat minimum and enterprise contract cost, evaluating ai tools at biglaw scale. Of those, an amlaw 100 or 200 firm wanting ai-assisted due diligence review across large contract sets and a large corporate legal department needing firm-tuned drafting on its own precedent library are not what Tabs3 is typically brought in for.
What can Harvey do that Tabs3 cannot?: Harvey covers Legal research assistant, Contract analysis, Document drafting, Workflow-specific tools. Tabs3 covers Tabs3 Billing, Trust accounting, General ledger and accounts payable, PracticeMaster.

Answered from the vendors’ own pages

Harvey: Can a small firm buy Harvey?

In practice, no. There is no self-service tier, and reported 25-seat minimums and six-figure contract values put it out of reach for most small and mid-size firms.

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.

Harvey: How much does Harvey actually cost?

Nothing is published. Third-party reporting estimates $1,000-2,000 per seat per month and enterprise contracts from roughly $360,000 to over $1.5 million a year including platform fees.

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.

Harvey: Does Harvey replace Westlaw or LexisNexis?

No. It is an AI research, drafting and review layer, typically deployed alongside rather than instead of a primary legal research database.

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.

Harvey vs Tabs3

Harvey

Tabs3

The short version

Where they differ

What each one covers

Only in Harvey

Only in Tabs3

What people use each for

Harvey

Tabs3

Where each one falls short

Harvey

Tabs3

Pricing, plan by plan

Harvey

Tabs3

Which should you pick?

Choose Harvey if

Choose Tabs3 if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Harvey

More on Tabs3

Keep looking

Other head to heads