🛡️ Wi-Fi Safety Checker

Is your Wi-Fi safe?

WiSure analyzes the network you're connected to and checks for signals that may indicate security or privacy problems. One scan, then a clear answer: Safe, Caution, or Unsafe.

What it checks

13 checks, every scan

Each one is a specific question about the network you're on. Together they decide the score and the verdict.

Encryption

Whether the network is encrypted at all, and how strongly. Open and WEP networks are treated very differently from WPA2/WPA3.

Certificate tampering

Whether anything is sitting between you and the sites you visit, presenting certificates that don't match.

HTTPS downgrade

Whether requests that should stay encrypted are being pushed onto insecure connections.

Content injection

Whether pages are being modified in transit, with extra scripts or ads inserted.

DNS hijacking

Whether website addresses resolve where they should, or are being redirected somewhere else.

DNS control

Which resolver the network hands out, and whether answers look consistent.

Captive portal

Whether a login page stands between you and the internet, and what that means for what you type into it.

Blocked services

Which services the network allows through, and which it closes off.

Speed and latency

How the connection actually performs, and whether it looks unstable.

Client isolation

Whether other devices on the same network can reach your phone.

Router exposure

Whether the router's admin surface is reachable by anyone on the network.

Exit location

Where your traffic leaves for the internet, and whether that looks unexpected.

Router changes

Whether the hardware answering a familiar network name has changed since your last visit.

What the scores mean

A number, and what to do about it

The score is severity-weighted: one serious finding matters more than several minor ones.

Safe: nothing found that should change what you do hereSafe
Caution: usable, but worth care with sensitive activityCaution
Unsafe: active interference found; don't log in to anythingUnsafe
Not sure yet: too many checks couldn't run to give a verdictUnknown

A verdict never contradicts the findings below it: if any activity reads other than Fine, there's a visible finding explaining why.

In the app

What you actually see

WiSure safety score screen WiSure per-app advice screen WiSure findings screen WiSure history screen
FAQ

Questions about checking Wi-Fi

Can an app really tell whether Wi-Fi is safe?

It can tell you a great deal: whether the network is encrypted, whether anything is intercepting secure connections, whether DNS answers are being tampered with, and whether other devices can reach your phone. It can't promise a network is safe, and WiSure doesn't claim to. It reports what it can actually observe.

Does WiSure need to see my browsing traffic?

No. WiSure checks the network itself, not what you do on it. Scans run on your device and results stay there.

Does it work on any Wi-Fi?

Yes, on any Wi-Fi network your iPhone is connected to. On mobile data there's nothing to scan: a carrier connection isn't a shared network.

Is it free?

Every scan gives you a score and verdict for free. WiSure Pro unlocks the full breakdown behind that verdict. See pricing.

Check the network you're on now.

Free to download. Your first scan takes under a minute.

Download on the App Store