The comparison
| Tool | Main job | Lease or real estate focus | Published pricing | What we couldn't verify |
|---|---|---|---|---|
| Acrebase | Tracks negotiations in rounds, counterparty profiles, voice-to-tracked-changes | Yes, CRE leases; Texas retail first | From USD 95 per seat per month, billed annually; tools listed to USD 245; enterprise custom | Customers, security certifications, the "30+ days faster" claim |
| Orbital | LOI and lease drafting, party-aware redlines, abstraction | Yes, landlord and tenant | None published | Word integration, accuracy |
| LeasePilot | Drafts leases from your forms and clause library, rent calculations | Yes, landlord side | USD 250 per lease, USD 100 per amendment, no per-seat fee | Auto-redline of a counterparty's paper |
| Gavel Exec | Reviews, redlines and drafts in Word from your playbooks | Has a real estate page; general tool | Homepage lists 25 free queries, then USD 160 per user per month for 1,000 completions | LOI-versus-lease check |
| Spellbook | Contract review and drafting in Word | Not stated on its homepage | Not read | Lease support |
| Dioptra | Redlines in Word from playbooks | Not stated on its homepage | Starter USD 450 per month; Teams from USD 4,200 per seat per year | Lease support |
| Prophia | Lease abstraction and portfolio data | Yes, CRE | By quote | Not a negotiation tool |
Prices are what each vendor showed on October 21, 2026, and several tools have more than one price page. Gavel's homepage says it has been acquired by Relativity and Dioptra's says it has been acquired by Icertis. Product and pricing may change.
Which fits which problem
You lease at volume from one form. LeasePilot's model, by its own description, is deterministic drafting from your clauses, with a fallback library. It's drafting software first; it doesn't claim to auto-redline a counterparty's lease.
Your lawyers work in Word across many contract types, including some leases. Gavel Exec, Spellbook and Dioptra are general redliners. Ask each to run on a lease, not a services agreement. Dioptra's own article ranking tools for real estate puts Dioptra first; it is vendor-authored, so we haven't used it as evidence.
You want one platform for drafting and review on landlord or tenant side. Orbital is the only tool here that says it covers LOI generation, lease drafting and party-aware redlining. Ask for pricing and a trial on your lease.
The pain is the rounds. A deal list, rounds per deal, who is waiting on whom, and what this tenant asked for last time. That's Acrebase's focus. Its Voice Editor turns a spoken instruction into tracked changes that update every affected clause and cross-reference, according to the vendor. A two-minute demo is on its site.
You need data out of signed leases. Prophia. It doesn't negotiate.
Where Acrebase is thin, as far as we can see
Honest comparison means saying this too, and these are observations from its public pages, not defects we found:
- No named customers. The pages we read show a testimonial from a co-founder and demo data labeled fictional. Ask for references.
- Market data is narrow. The scorecard covers Texas retail in four metros and is enterprise-only, with other markets on its roadmap.
- No certification claim. The security page describes encryption, SSO, audit logs and DPAs, and doesn't mention SOC 2 or ISO 27001. Ask.
- Speed claims are unsourced. "Closing shopping center leases 30+ days faster" is a teaser without a method on the page.
- No free trial. The call to action is a demo request.
And what stands out: round-level records, counterparty profiles built from the other side's own documents and a privilege-aware workspace for law firms, all aimed at the negotiation rather than the first draft. Its pages say a lawyer confirms every output; that's the right shape for the work.
How we'd test two of them in a week
- Pick one closed lease and its markups.
- Run the 10-minute test in each tool.
- Score three things: changes missed, changes invented, and responses that follow your playbook.
- Ask each for its data processing agreement.
Sources
- Acrebase, company site (pages read October 21, 2026) (Vendor claims; product, pricing and company pages)
- Orbital, AI for commercial real estate leasing (Vendor claims)
- LeasePilot, lease drafting software and pricing (Vendor claims)
- Gavel Exec, real estate law (Vendor claims)
- Spellbook (Homepage only; lease support not stated)
- Dioptra, pricing (Vendor claims)
- Prophia (Vendor claims)
Questions and answers
Operational information, not legal advice. Tool descriptions are each vendor's own claims, read October 21, 2026; we did not test any product.