LegalOn and Ivo chase the same buyer: an in-house legal team reviewing the same agreements — NDAs, MSAs, DPAs, order forms — at a volume where consistency between reviewers has become the problem. Both redline inside the document the lawyer already has open. Both now read the contracts you have already signed, which is what changed in 2026: LegalOn shipped Vault on 29 April 2026 for post-signature obligations and renewal risk, and Ivo Intelligence does the same job over your repository. So the old split — LegalOn the broad suite, Ivo the lean redline tool — no longer routes the decision. What routes it is where your review standard comes from. LegalOn ships one its attorneys wrote. Ivo builds one out of the contracts your team has already negotiated.
Where LegalOn wins
A standard you did not write, for jurisdictions you do not staff. 50+ attorney-written playbooks are live on day one, and the April 2026 International Playbooks release added NDA and MSA review standards for 23 countries outside the US, each reviewed by attorneys admitted in that jurisdiction, with EU and Singapore data-residency options. Ivo detects an agreement’s governing law and applies region-specific positions, but those positions come from your own precedent — and on paper governed by a law nobody on your team has negotiated under, there is no precedent to draw from. For a team with EU, UK, and APAC paper, that gap is the entire purchase.
The queue, not just the document. LegalOn announced five agents on 10 February 2026, and three are generally available: Playbook Agent turns your existing templates into review standards, Intake Agent chases business stakeholders for the facts missing from a request, and Translate Agent reviews contracts in dozens of languages and translates the redlines back into the original. Triage Agent, which auto-approves low-risk agreements or escalates them, is in early access; Draft Agent has not shipped. Matter Management tracks work from intake to close, and the October 2025 Fides acquisition added entity and board management. Ivo has nothing in this lane — it starts when a document is already in front of you.
Install base, if you are reference-checking. LegalOn passed ¥10 billion in ARR (roughly $67M) in October 2025 and reported 8,000+ customer organizations in April 2026, on $200M raised including a $50M Series E in July 2025. Ivo’s named logos are larger companies; LegalOn’s install base is the deeper one, which matters when you want a reference from a team that looks like yours rather than from Meta.
Where Ivo wins
Review quality is what it optimized, and it published the test. Review 2.0, released 4 May 2026, assigns a separate agent to each topic in an agreement and has a superior agent reconcile conflicts across them. Ivo reports 41% higher overall accuracy than Review 1.0, and a head-to-head study in which its redline quality scored 4.52 against 4.56 for a Special Counsel at an Am Law 25 firm, at less time per review. Those numbers are vendor-published, so treat them as directional rather than settled — but LegalOn’s headline figure is an 85% time-saving drawn from its own press releases and customer stories, which is a softer claim measured against a looser baseline.
Your negotiation history is the benchmark. Ivo’s Benchmarks compares a clause against your executed agreements and past negotiations, auto-filtering the comparison set by contract type, governing law, party role, and industry. Playbook Builder drafts a playbook from those signed agreements in minutes, and a single review can run up to three playbooks at once — an MSA layered with a DPA, for instance. LegalOn’s standard is external and well-built; Ivo’s argument is that “off-market” should mean off your market, priced by what your team has actually conceded before.
It runs where your company writes. Ivo Review is an add-in for Microsoft Word and Google Docs. LegalOn is a Word add-in plus a web app. If your team drafts in Google Workspace, that is a daily friction difference rather than a feature-matrix line. Ivo Intelligence also resolves amendments, restatements, and superseding agreements back to their base contract with no tagging project first, and Ivo carries SOC 2 and ISO 27001 with a stated commitment not to train models on customer data. It raised a $55M Series B led by Blackbird in January 2026, with ARR its founder says grew sixfold over the prior year.
Pricing reality
Neither vendor publishes a number. LegalOn’s pricing page names three tiers — Core Review, Contracting Suite, Productivity Suite — with a free trial on Core Review and no figure against any of them, verified 31 July 2026. Ivo has no pricing page at all; the only path is a demo request.
So both sides are third-party estimates, and the third parties publishing them are rivals writing comparison pages, which is an interested source. Ivo is reported at roughly $6,000 per user per year (about $500 per seat per month) on annual, volume-based contracts, with playbook creation and onboarding described as included. LegalOn’s last self-published figure was a single-seat Individual plan at $550/month billed annually ($6,600/year), since pulled from the page; competitor breakdowns put an all-modules seat near $8,000 per user per year and a five-seat deployment near $40,000 per year.
That works out to roughly 1.3x, and it is the most useful fact on this page. Against Spellbook, where the reported gap runs 2-5x, price decides the deal. Here it does not, so decide on fit and treat the quotes as close to equal. Two adjustments move the arithmetic more than the base rates do. LegalOn’s bill is modular — Matter Management, Vault, Translate, and the international playbook pack each add a line — so a Core Review quote set against Ivo’s all-in number flatters LegalOn by a wide margin. And the playbook build Ivo includes is labor you would otherwise staff or buy. Get the fully loaded per-seat number from both, with every module you intend to switch on in year one, in writing, before you compare anything.
Implementation effort
Both are add-ins, and both skip the rollout a CLM like Ironclad demands. The cold start is where they diverge. LegalOn returns graded redlines on day one against a standard it wrote, so a team with no playbook and no precedent library gets value in week one. Ivo’s Review 2.0 sharpens as it reads your executed agreements, and Playbook Builder needs a body of signed contracts to draft from. A team with 5,000 agreements in a repository gets more out of Ivo immediately than a two-year-old company with 60 does.
Buy LegalOn’s February 2026 agent announcement on what is generally available — Playbook, Intake, and Translate — not on Triage, which is early access, or Draft, which has not shipped. Vault has been generally available since April 2026. Neither vendor publishes an MCP server, and neither names an iManage or NetDocuments connector, so if your executed contracts live in a DMS, prove the ingest and export path during the pilot rather than after signature.
Verdict
Pick LegalOn when governing law changes from deal to deal and nobody on the team has negotiated under those laws — NDA and MSA standards across 23 non-US jurisdictions, each reviewed by a locally admitted attorney, is coverage bought as content instead of authored in-house. Pick it too when the constraint is the request queue rather than the document: intake, triage, matter tracking, and entity management are on LegalOn’s price list and absent from Ivo’s entirely.
Pick Ivo when you already hold a repository of executed agreements and want each redline argued from your own prior positions rather than a vendor’s standard, when review accuracy on repeatable commercial paper is the whole job, or when your team drafts in Google Docs and a Word-only add-in is a daily tax.
Pick neither when the work runs past contracts into litigation, legal research, or broad advisory — Harvey and Legora cover that at materially higher cost, and GC AI publishes a per-seat floor if you want contracts plus employment and compliance answers in one surface. If you are a law firm rather than a legal department, neither of these is aimed at you and Spellbook is. And if what you need is a system of record with approval routing and renewal alerts, note that Vault and Ivo Intelligence both read contracts without becoming one: buy a CLM and put contract AI on top of it.
If you are choosing in a vacuum, pick Ivo. Most teams running this comparison already have the asset Ivo converts into an advantage — years of executed agreements nobody has mined — and Review 2.0 is the only product here whose central quality claim carries a published head-to-head number, even a vendor-run one. Move to LegalOn on a specific trigger: the quarter when cross-border paper your team cannot benchmark becomes routine, or the quarter when intake and triage rather than redlining become the bottleneck.
LegalOn and Ivo chase the same buyer: an in-house legal team reviewing the same agreements — NDAs, MSAs, DPAs, order forms — at a volume where consistency between reviewers has become the problem. Both redline inside the document the lawyer already has open. Both now read the contracts you have already signed, which is what changed in 2026: LegalOn shipped Vault on 29 April 2026 for post-signature obligations and renewal risk, and Ivo Intelligence does the same job over your repository. So the old split — LegalOn the broad suite, Ivo the lean redline tool — no longer routes the decision. What routes it is where your review standard comes from. LegalOn ships one its attorneys wrote. Ivo builds one out of the contracts your team has already negotiated.
Where LegalOn wins
A standard you did not write, for jurisdictions you do not staff. 50+ attorney-written playbooks are live on day one, and the April 2026 International Playbooks release added NDA and MSA review standards for 23 countries outside the US, each reviewed by attorneys admitted in that jurisdiction, with EU and Singapore data-residency options. Ivo detects an agreement’s governing law and applies region-specific positions, but those positions come from your own precedent — and on paper governed by a law nobody on your team has negotiated under, there is no precedent to draw from. For a team with EU, UK, and APAC paper, that gap is the entire purchase.
The queue, not just the document. LegalOn announced five agents on 10 February 2026, and three are generally available: Playbook Agent turns your existing templates into review standards, Intake Agent chases business stakeholders for the facts missing from a request, and Translate Agent reviews contracts in dozens of languages and translates the redlines back into the original. Triage Agent, which auto-approves low-risk agreements or escalates them, is in early access; Draft Agent has not shipped. Matter Management tracks work from intake to close, and the October 2025 Fides acquisition added entity and board management. Ivo has nothing in this lane — it starts when a document is already in front of you.
Install base, if you are reference-checking. LegalOn passed ¥10 billion in ARR (roughly $67M) in October 2025 and reported 8,000+ customer organizations in April 2026, on $200M raised including a $50M Series E in July 2025. Ivo’s named logos are larger companies; LegalOn’s install base is the deeper one, which matters when you want a reference from a team that looks like yours rather than from Meta.
Where Ivo wins
Review quality is what it optimized, and it published the test. Review 2.0, released 4 May 2026, assigns a separate agent to each topic in an agreement and has a superior agent reconcile conflicts across them. Ivo reports 41% higher overall accuracy than Review 1.0, and a head-to-head study in which its redline quality scored 4.52 against 4.56 for a Special Counsel at an Am Law 25 firm, at less time per review. Those numbers are vendor-published, so treat them as directional rather than settled — but LegalOn’s headline figure is an 85% time-saving drawn from its own press releases and customer stories, which is a softer claim measured against a looser baseline.
Your negotiation history is the benchmark. Ivo’s Benchmarks compares a clause against your executed agreements and past negotiations, auto-filtering the comparison set by contract type, governing law, party role, and industry. Playbook Builder drafts a playbook from those signed agreements in minutes, and a single review can run up to three playbooks at once — an MSA layered with a DPA, for instance. LegalOn’s standard is external and well-built; Ivo’s argument is that “off-market” should mean off your market, priced by what your team has actually conceded before.
It runs where your company writes. Ivo Review is an add-in for Microsoft Word and Google Docs. LegalOn is a Word add-in plus a web app. If your team drafts in Google Workspace, that is a daily friction difference rather than a feature-matrix line. Ivo Intelligence also resolves amendments, restatements, and superseding agreements back to their base contract with no tagging project first, and Ivo carries SOC 2 and ISO 27001 with a stated commitment not to train models on customer data. It raised a $55M Series B led by Blackbird in January 2026, with ARR its founder says grew sixfold over the prior year.
Pricing reality
Neither vendor publishes a number. LegalOn’s pricing page names three tiers — Core Review, Contracting Suite, Productivity Suite — with a free trial on Core Review and no figure against any of them, verified 31 July 2026. Ivo has no pricing page at all; the only path is a demo request.
So both sides are third-party estimates, and the third parties publishing them are rivals writing comparison pages, which is an interested source. Ivo is reported at roughly $6,000 per user per year (about $500 per seat per month) on annual, volume-based contracts, with playbook creation and onboarding described as included. LegalOn’s last self-published figure was a single-seat Individual plan at $550/month billed annually ($6,600/year), since pulled from the page; competitor breakdowns put an all-modules seat near $8,000 per user per year and a five-seat deployment near $40,000 per year.
That works out to roughly 1.3x, and it is the most useful fact on this page. Against Spellbook, where the reported gap runs 2-5x, price decides the deal. Here it does not, so decide on fit and treat the quotes as close to equal. Two adjustments move the arithmetic more than the base rates do. LegalOn’s bill is modular — Matter Management, Vault, Translate, and the international playbook pack each add a line — so a Core Review quote set against Ivo’s all-in number flatters LegalOn by a wide margin. And the playbook build Ivo includes is labor you would otherwise staff or buy. Get the fully loaded per-seat number from both, with every module you intend to switch on in year one, in writing, before you compare anything.
Implementation effort
Both are add-ins, and both skip the rollout a CLM like Ironclad demands. The cold start is where they diverge. LegalOn returns graded redlines on day one against a standard it wrote, so a team with no playbook and no precedent library gets value in week one. Ivo’s Review 2.0 sharpens as it reads your executed agreements, and Playbook Builder needs a body of signed contracts to draft from. A team with 5,000 agreements in a repository gets more out of Ivo immediately than a two-year-old company with 60 does.
Buy LegalOn’s February 2026 agent announcement on what is generally available — Playbook, Intake, and Translate — not on Triage, which is early access, or Draft, which has not shipped. Vault has been generally available since April 2026. Neither vendor publishes an MCP server, and neither names an iManage or NetDocuments connector, so if your executed contracts live in a DMS, prove the ingest and export path during the pilot rather than after signature.
Verdict
Pick LegalOn when governing law changes from deal to deal and nobody on the team has negotiated under those laws — NDA and MSA standards across 23 non-US jurisdictions, each reviewed by a locally admitted attorney, is coverage bought as content instead of authored in-house. Pick it too when the constraint is the request queue rather than the document: intake, triage, matter tracking, and entity management are on LegalOn’s price list and absent from Ivo’s entirely.
Pick Ivo when you already hold a repository of executed agreements and want each redline argued from your own prior positions rather than a vendor’s standard, when review accuracy on repeatable commercial paper is the whole job, or when your team drafts in Google Docs and a Word-only add-in is a daily tax.
Pick neither when the work runs past contracts into litigation, legal research, or broad advisory — Harvey and Legora cover that at materially higher cost, and GC AI publishes a per-seat floor if you want contracts plus employment and compliance answers in one surface. If you are a law firm rather than a legal department, neither of these is aimed at you and Spellbook is. And if what you need is a system of record with approval routing and renewal alerts, note that Vault and Ivo Intelligence both read contracts without becoming one: buy a CLM and put contract AI on top of it.
If you are choosing in a vacuum, pick Ivo. Most teams running this comparison already have the asset Ivo converts into an advantage — years of executed agreements nobody has mined — and Review 2.0 is the only product here whose central quality claim carries a published head-to-head number, even a vendor-run one. Move to LegalOn on a specific trigger: the quarter when cross-border paper your team cannot benchmark becomes routine, or the quarter when intake and triage rather than redlining become the bottleneck.