Based only on the facts in our directory. The right pick still depends on the job you need done.
Lower starting price
Not comparable
Not comparable: LegalFly does not list a price
Free plan
Tie
Neither has one
Higher rating
LegalOn
4.0 against 4.2
Same job?
Yes
Both are Legal AI tools
Side by side
Compared on
LegalFly
LegalOn
Our rating
4.0
4.2Better
Starts at
Not listed
$550/mo
Free plan
No
No
Category
Legal AI
Legal AI
Plans
See pricing
From $550/mo
Key features
AI-native workspace for in-house legal, compliance, and procurement teams
Client and counterparty data anonymized by default before any analysis
Legally-trained AI agents built specifically for contract review workflows
Bank-level security architecture built for regulated, sensitive legal data
$16.3M Series A led by Notion Capital and Fortino Capital in July 2024
Attorney-built playbooks ready to use immediately, not built from scratch
One of Japan's most-adopted AI contract review platforms before US expansion
Surpassed $65M in annual recurring revenue as of October 2025
$50M Series E led by Goldman Sachs Alternatives, $200M raised total
Partnership with OpenAI announced alongside continued product development
Pros
Default anonymization removes a manual privacy step other tools leave optional
Built specifically for in-house teams rather than law firm workflows alone
European regulatory perspective built in from the start, not retrofitted
Pre-built attorney playbooks remove setup time other contract review tools require
Proven adoption at scale in Japan before expanding into a competitive US market
Strong recent funding and an OpenAI partnership support continued investment
Cons
Subscription pricing isn't published, requires a direct sales conversation
Younger company, founded 2023, with a shorter track record than established competitors
Smaller funding scale than the largest legal AI platforms in this directory
Individual plan at $550 a month is a real cost for solo practitioners
Enterprise team pricing requires a sales conversation, not published upfront
Originally built for the Japanese market, still establishing full US-market depth
Company
LegalFly, founded 2023
LegalOn Technologies, founded 2017
Prices come from each vendor's pricing page, last checked 20260715. Check the vendor before you buy.
FAQ
Questions people ask
Is LegalFly better than LegalOn?
In our reviews LegalFly scores 4.0 and LegalOn scores 4.2. The better pick depends on the job. LegalFly: Bank-level security and default anonymization for in-house legal, compliance, and procurement teams. LegalOn: Japan's most-adopted contract review AI, now partnered with OpenAI after crossing $65M ARR.
LegalOn
LegalFly
