AbacusLaw vs ProLaw
Both score 5.9/10. Compare features and pricing below.
Both score 5.9/10. AbacusLaw is a legacy tool that long-time users may be comfortable with, but new firms should not start here. Clio, MyCase, or PracticePanther offer more features at similar or lower prices with modern interfaces.
AbacusLaw 
ProLaw Rank
#38 of 39
Rank
#37 of 39
Features
14/18
Features
16/18
Starting at
$100/mo
Starting at
Custom
User reviews
3.4/5 (250)
User reviews
3.5/5 (50)
What they cost
| AbacusLaw | ProLaw | |
|---|---|---|
| Starting at | $100 /mo | Contact for pricing |
| Free trial | No | No |
| Number of plans | 1 | Custom |
What the pricing really means
AbacusLaw publishes their pricing upfront, which is a good sign. ProLaw requires you to contact sales for a quote. When a company hides pricing, it usually means the cost is high enough that they want a salesperson to justify it before you see the number. Always ask for total year-one cost, not just the monthly subscription.
Where AbacusLaw wins
- Been in the market since the 1980s, so it handles traditional legal workflows that newer tools sometimes miss
- Calendar and docket rules engine is comprehensive with built-in court rules
- Trust accounting is mature and reliable
- Cloud version available for firms migrating from on-premise
Where ProLaw wins
- Backed by Thomson Reuters with direct integration to Westlaw and Practical Law
- Enterprise-grade financial management with LEDES billing, matter budgets, and profitability analysis
- Trust accounting with multi-bank, multi-currency support for large international firms
- Court rule calendaring included
Where AbacusLaw falls short
- Interface feels a generation behind Clio, PracticePanther, or Smokeball
- No client portal, no intake forms, no eSignature, no mobile app — missing major modern features
- G2 rating of 3.4 is the lowest in the category, with users citing outdated UX and slow support
- Parent company AbacusNext has had mixed reviews about customer service and billing practices
Where ProLaw falls short
- G2 rating of 3.5 and Capterra 3.8 indicate significant user frustration with the interface
- No public pricing — likely $200+/user based on the enterprise positioning
- No client portal, no mobile app, no eSignature, no intake forms
- Implementation takes months, not days
Who is each product built for?
AbacusLaw
Target: 1-20 attorneys
AbacusLaw is a legacy tool that long-time users may be comfortable with, but new firms should not start here. Clio, MyCase, or PracticePanther offer more features at similar or lower prices with modern interfaces.
ProLaw
Target: 25-1,000+ attorneys
ProLaw is a legacy enterprise product. Large firms already invested in Thomson Reuters' ecosystem may find value in the Westlaw integration, but modern alternatives like Filevine or Litify offer better user experiences at every scale.
Feature comparison
| Feature | AbacusLaw | ProLaw |
|---|---|---|
| Case Management | ||
| Case / matter management | ||
| Contact management | ||
| Conflict checks | ||
| Client intake forms | ||
| Client portal | ||
| Documents & Automation | ||
| Document management | ||
| Document automation | ||
| E-signatures | ||
| Email management | ||
| Billing & Accounting | ||
| Time tracking | ||
| Billing & invoicing | ||
| Trust / IOLTA accounting | ||
| Scheduling & Deadlines | ||
| Calendar management | ||
| Task management | ||
| Court rule deadlines | ||
| Platform | ||
| Reporting / analytics | ||
| Mobile app | ||
| API access | ||
Common questions
Both score 5.9/10. AbacusLaw fits 1-20 attorneys, while ProLaw fits 25-1,000+ attorneys. Pick based on your team size and the features you need most.
AbacusLaw starts at $100/month. ProLaw uses custom pricing (contact sales). Watch for add-on costs — the base price often does not include all features. Pricing last verified 2026-04-11.
AbacusLaw: No free trial. ProLaw: No free trial. Always test with your actual workflow before committing to an annual plan.
AbacusLaw covers 14 of 18 features we track. ProLaw covers 16 of 18. ProLaw has broader feature coverage, but more features does not always mean better — pick the tool that covers what your business actually needs.
Yes, AbacusLaw has a mobile app. ProLaw does too.
Yes. The main effort is migrating your data (customer lists, job history, invoices). Plan for 1-2 weeks of overlap where you run both. Most legal practice management tools can import CSV data. Ask both vendors about migration support before you sign.
The bottom line
Pick AbacusLaw if...
Existing AbacusLaw users who moved to the cloud version. New firms should evaluate modern alternatives first.
Pick ProLaw if...
Large firms (50+ attorneys) that want enterprise practice management from a trusted legal tech brand with deep integration into Thomson Reuters' legal research ecosystem.