Crios review
A local-network scanner for Apple devices that checks devices, ports, and vulnerabilities.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Crios is a home-network security scanner for iPhone, iPad, and Mac, aimed at people who want to identify connected devices and review potential network risks. It scans the local network, maps devices, and checks ports and known vulnerabilities. Its focus on a household network suits solo users and small setups more than organizations seeking a broader security platform.
Device identification draws on Bonjour, UPnP, hostnames, service fingerprints, and Mac vendor lookup. Crios flags first-time devices and newly opened ports, while its map distinguishes ports forwarded from the internet from those limited to the home network. A labeled trusted-device roster helps track familiar equipment, and users can export it as CSV or JSON. The app also explains findings and suggests fixes on-device, making the scanner useful for reviewing alerts rather than merely presenting a list of devices.
According to the vendor, scans and scan data stay on the device. That local approach fits buyers who want network checks without sending scan data elsewhere. The App Store listing shows a $4.99 price for the Crios plan, with no billing interval specified, and there is no free plan. The product is limited to Apple platforms, so it is not a fit for households that need Android or Windows support. Choose Crios if local discovery, port checks, and trusted-device tracking are the priorities; consider another option if a free tier or cross-platform coverage matters more.
Crios pros and cons
- Where it wins
- Discovers local devices using service and vendor-identification methods
- Checks open ports, known vulnerabilities, and newly opened ports
- Tracks trusted devices and explains findings with suggested fixes
- Where it doesn't
- No free plan
- Available only for iPhone, iPad, and Mac
- The $4.99 listing does not specify a billing interval
Crios fact sheet, pricing and score →
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