APX Labs Arsenal (Cipher & Niro) vs libformatstr.py: side-by-side comparison (2026)
APX Labs Arsenal (Cipher & Niro) is a commercial penetration testing solution by APX Labs. libformatstr.py is a free penetration testing solution. Features, integrations, deployment and the company behind each one, side by side.
AI-driven pentest suite: Cipher tests live apps, Niro secures PRs in CI/CD.
A Python library that simplifies format string vulnerability exploitation by providing tools for payload generation, memory manipulation, and automated parameter detection.
Side-by-side comparison
Feature
APX Labs Arsenal (Cipher & Niro)
libformatstr.py
Pricing model
Commercial
Free
Category
Penetration Testing
Penetration Testing
Deployment and fit
Deployment type
Cloud
On-Premises
Company size fit
Startup, SMB, Mid-Market, Enterprise
Mid-Market, Enterprise
Open source
GitHub stars
–
347
Last commit
–
Jul 2017
Company
Company
APX Labs
–
Use cases and capabilities
AI Pentesting
Yes
No
DAST
Yes
No
CI/CD
Yes
No
Penetration Testing Framework
Yes
No
Vulnerability
Yes
No
Exploit Development
Yes
Yes
DevSecOps
Yes
No
Continuous Testing
Yes
No
App Security
Yes
No
Red Team
Yes
No
Vulnerability Exploitation
No
Yes
Payload Generation
No
Yes
ROP
No
Yes
Core features
10 features listed
No features listed
Integrations
3 integrations listed
No integrations listed
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