StrongerFi runs inside of an iOS function that updates RSSI and will trigger a scan based on an interval or forced threshold value.
It DOES NOT scan while your device is locked or viewing the LockScreen.
If the current RSSI value has been greater than but is now less than the Force Threshold value, it scans for better WiFi networks immediately.
If the Minimum Scan Interval has elapsed (default is 2 minutes) and the current RSSI value is less than the Interval Threshold value, it scans for better WiFi networks.\n
'Sort Networks by Strength' - When scanning for WiFi networks, sort them by RSSI strength, instead of alphabetically.
'Show Hidden Networks' - When scanning for WiFi networks, show hidden networks.
'Enabled Scan Types' - You can choose which scans get performed.
'Switch Type' - Affects how the best network is chosen during a scan.
'Strongest' - The network with the strongest RSSI is considered to be the best.
'Prefer 5GHz' - Preference is given to 5Ghz networks over 2.4GHz networks with an allowamce for signal strength differencs between the two based on the setting for 'Prefer 5GHz Max Difference'.
'Same Frequency' - The network with the strongest RSSI is considered to be the best but only if the new network is on the same frequency as the current network (2.4GHz to 2.4GHz and 5GHz to 5GHz).
'Scan on Unlock Condition' - The Unlock scan can use the Interval Threshold or Force Threshold value.
'Extra WiFi Info' - Show signal info and/or BSSID for WiFi networks, etc. in Settings -> WiFi.
'RSSI Threshold' - When scanning for WiFi networks, iOS filters out networks with an RSSI less than -80. You can set this value lower to show more networks, or higher to show fewer networks.
'Minimum Scan Interval' - Determines how often StrongerFi will scan for new networks.
'Interval Threshold' - If the current networks RSSI is greater than this value when an Interval scan is run, the scan will be aborted.
'Force Threshold' - If the current networks RSSI falls below this value, a forced scan for new networks will run.
'Threshold Min Difference' - If a network with a better RSSI value is found during a scan, this value will determine whether that better RSSI value is worth switching to. I don't see the point in switching to a new network if the RSSI is only one or two points better. I think values of at least 10% are good for this.
'Prefer 5GHz Max Difference' - This is the maximum percentage difference between the signal strength of two different frequency networks to help determine whether to switch from a 2.4GHz network to a 5GHz network even though the signal strength of the 2.4GHz net work might be a little stronger. I think values of 10% to 20% are good for this.