If you don’t understand this already, your iPhone or iPad Includes a default Sign level limitation, which prevents the device from showing the Wi-Fi networks that have very weak signs, even though it can still read them.
Using BoostedWiFi tweak, you can remove the default signal level Limitation in your iOS device, allowing users to see almost all Wi-Fi networks that are available in the vicinity, though their signals are too weak for them to be a feasible choice.
The tweak also adds the current signal level or RSSI to Every Wi-Fi Network, which may be seen right under the system’s name onto the Wi-Fi Settings page.
While most users do not actually need to remove the signal level Limits it remains an enjoyable thing to have if you are curious to see how many Wi-Fi programs are offered around you. You can also try moving around to determine if RSSI strength changes to see where a Wi-Fi network becomes powerful.
You can download the BoostedWiFi tweak from Cydia at which it is available as a free download. The tweak is fully compatible with iOS 11