Best Hadrian Alternatives in 2026

Updated October 2026

20 apps from attack surface management software ranked against Hadrian on the same published basis.

1
FullHunt Free plan apiWeb $149/mo7.9
Hadrian vs FullHunt
2
ZeroFox Attack Surface Intelligence apiWeb 7.4
Hadrian vs ZeroFox Attack Surface Intelligence
3
Detectify Surface Monitoring Web 7.3
Hadrian vs Detectify Surface Monitoring
4
CyCognito Platform apiWeb 7.3
Hadrian vs CyCognito Platform
5
Censys Attack Surface Management Web 7.3
Hadrian vs Censys Attack Surface Management
6
Qualys External Attack Surface Management Free trial apiLinuxWeb 7.2
Hadrian vs Qualys External Attack Surface Management
7
ImmuniWeb AndroidapiiOSWeb €49.58/mo7.2
Hadrian vs ImmuniWeb
8
Outpost24 Attack Surface Management apiWeb 7.0
Hadrian vs Outpost24 Attack Surface Management
9
Bitsight External Attack Surface Management apiWeb 6.9
Hadrian vs Bitsight External Attack Surface Management
10
Tenable One Attack Surface Management LinuxMacWebWin 6.8
Hadrian vs Tenable One Attack Surface Management
11
CrowdStrike Falcon Surface Free trial LinuxMacWebWin 6.7
Hadrian vs CrowdStrike Falcon Surface
12
Microsoft Defender for Business AndroidiOSMacWin $3/mo6.5
Hadrian vs Microsoft Defender for Business
14
Aftra Web 6.3
Hadrian vs Aftra
15
Armis Centrix for Attack Surface Management Web 6.3
Hadrian vs Armis Centrix for Attack Surface Management
16
Group-IB Attack Surface Management Free trial apiWeb 6.2
Hadrian vs Group-IB Attack Surface Management
17
Bugcrowd External Attack Surface Management Web 6.1
Hadrian vs Bugcrowd External Attack Surface Management
18
SOCRadar Extended Threat Intelligence Platform Free trial apiWeb $379.17/mo6.0
Hadrian vs SOCRadar Extended Threat Intelligence Platform
19
runZero Free plan apiLinuxMacself-hostedWeb Free6.0
Hadrian vs runZero
20
CTM360 Web 5.9
Hadrian vs CTM360
21
Check Point External Risk Management WinMacLinux 5.8
Hadrian vs Check Point External Risk Management

Hadrian alternatives compared

#	App	Score	Free plan	From	Runs on
1	FullHunt	7.9	Free plan	$149/mo	API, Web
2	ZeroFox Attack Surface Intelligence	7.4	No	—	API, Web
3	Detectify Surface Monitoring	7.3	No	—	Web
4	CyCognito Platform	7.3	No	—	API, Web
5	Censys Attack Surface Management	7.3	No	—	Web
6	Qualys External Attack Surface Management	7.2	No	—	API, Linux, Web
7	ImmuniWeb	7.2	No	€49.58/mo	Android, API, iOS, Web
8	Outpost24 Attack Surface Management	7.0	No	—	API, Web
9	Bitsight External Attack Surface Management	6.9	No	—	API, Web
10	Tenable One Attack Surface Management	6.8	No	—	Linux, Mac, Web, Windows
11	CrowdStrike Falcon Surface	6.7	No	—	Linux, Mac, Web, Windows
12	Microsoft Defender for Business	6.5	No	$3/mo	Android, iOS, Mac, Windows
14	Aftra	6.3	No	—	Web
15	Armis Centrix for Attack Surface Management	6.3	No	—	Web
16	Group-IB Attack Surface Management	6.2	No	—	API, Web
17	Bugcrowd External Attack Surface Management	6.1	No	—	Web
18	SOCRadar Extended Threat Intelligence Platform	6.0	No	$379.17/mo	API, Web
19	runZero	6.0	Free plan	Free	API, Linux, Mac, self-hosted, Web, Windows
20	CTM360	5.9	No	—	Web
21	Check Point External Risk Management	5.8	No	—	Windows, Mac, Linux

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Questions about Hadrian alternatives

What is the best alternative to Hadrian?

FullHunt, number 1 in attack surface management software with a score of 7.9 out of 10. The others here: ZeroFox Attack Surface Intelligence, Detectify Surface Monitoring, CyCognito Platform and 16 more.

What is the best free alternative to Hadrian?

FullHunt is the best-ranked alternative with a free plan. 2 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.