A video meeting starts soon
Check your seat first. If the connection looks unsteady, try another spot or network.
I want to check before a call
Before the important call, check the connection.
A hotel room, a café seat, or your desk at home. Check responsiveness, variation, and interruptions with WhiteSail, then compare places you have actually tested.
- iPhone
- iOS 16+
- Paid download
- No subscription
MADE FOR REAL MOMENTS
A useful way through.
Same Wi-Fi, a different experience
Test your desk, sofa, and bedroom, then compare the places you saved.
A game keeps stuttering
Look at response, variation, and interruptions to understand the current connection.
HOW IT WORKS
From the first step to a useful result.
Understand how the current connection feels.
While WhiteSail is open on the Live tab, it continuously updates experience signals for the Wi-Fi or cellular connection you are using.
- Focus on responsiveness, variation, and interruptions
- Use the current experience as a practical starting point
- See whether the connection looks steady enough for the moment
- Do not confuse the result with an Mbps bandwidth test
Run a short check where you actually use the network.
Choose a real place such as your bed, desk, sofa, hotel room, or café seat, then run a check of about five seconds.
- Select a suggested place or enter your own name
- Test the exact spot before gaming, video, or a call
- Save the result to the place you selected
- Repeat a saved place when conditions change
Compare the places you have personally tested.
Saved results stay grouped by the current Wi-Fi or cellular connection, so unlike networks are not casually mixed together.
- Compare familiar places on the same connection
- Measure another place before drawing a conclusion
- Retest a saved place from its detail screen
- Use the result to choose—not to claim stronger coverage
KNOW WHAT YOU ARE GETTING
Clear data boundaries
No account, ads, or third-party tracking SDKs · Wi-Fi name is used only when iOS returns it with permission · Network checks send requests to connectivity providers · Connectivity providers may process ordinary request metadata such as IP address
Read the privacy policy ↗One purchase, no subscription.
Pay once. See the current price for your region on the App Store.
QUESTIONS
A few things to know.
Is this an Mbps speed test?
WhiteSail measures responsiveness, variation, and interruptions. It does not measure download bandwidth, boost a signal, or predict an untested location.
Does a good result guarantee a smooth call?
No. A result describes conditions during the check. Congestion, servers, and time can change the experience; retest before important use.
How do I get help?
A USEFUL FIRST STEP