Best Definely Alternatives in 2026

Updated October 2026

19 apps from AI contract review software ranked against Definely on the same published basis.

Definely alternatives compared

#	App	Score	Free plan	From	Runs on
1	Genie AI	6.6	Free plan	$4.92/mo	Browser, Mac, Web, Windows
2	Legartis	6.5	Free plan	Free	API, Mac, Web, Windows
3	Zuva	6.4	Free plan	Free	API, self-hosted, Web
5	DocJuris	5.4	No	—	API, Web
6	eBrevia	5.4	No	—	API, self-hosted, Web
7	Kira	5.4	No	—	self-hosted, Web
8	LawGeex	5.4	No	—	Web
9	Maigon	5.4	No	—	Browser, Web
10	Robin AI	5.4	No	—	Browser, Web
11	Superlegal	5.4	No	$999/mo	Web
12	LeCHECK	5.2	No	—	Mac, Web, Windows
13	Spellbook	5.1	No	—	API, Browser, Mac, Web, Windows
14	ThoughtRiver	5.1	No	$6/mo	API, Browser, Web, Windows
15	BlackBoiler	5.0	No	$104.17/mo	API, Web
16	GC AI	5.0	No	$500/mo	API, Browser, Web
17	LegalOn	5.0	No	—	Browser, Web
18	LegalSifter	5.0	No	$229.17/mo	Web
19	TermScout Certify	5.0	No	$37.50/mo	Web
20	Luminance	4.9	No	—	Web

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What is the best alternative to Definely?

Genie AI, number 1 in AI contract review software with a score of 6.6 out of 10. The others here: Legartis, Zuva, DocJuris and 15 more.

What is the best free alternative to Definely?

Genie AI is the best-ranked alternative with a free plan. 3 of the 19 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.