Wi-Fi Tracker for Android

What the Wi-Fi tracker records

• The network name the phone joined, as broadcast by the router.
• When it connected, and when it dropped — so you get a duration, not just a moment.
• Whether the network is known, meaning one the phone has joined before, or brand new.
• Whether it is open, with no password. Open networks are the ones worth a second look, for safety reasons as much as location ones.

Why network history beats GPS indoors

Satellite positioning needs a view of the sky. Inside a shopping centre, a school building or a basement flat, the phone falls back to cell towers and drifts — sometimes by a couple of streets. That drift is the single most common reason parents lose confidence in a location tracker.

A Wi-Fi connection does not drift. A router has a fixed position and a range of a few dozen metres, so "connected to the school network for six hours" is a harder fact than any pin the map drew during those six hours. Used together, the GPS location tracker gives you the route and the Wi-Fi tracker confirms the destinations.

Reading the network log

An ordinary week is extremely repetitive, which is exactly what makes the exceptions visible. Home overnight. School from nine. Home again by four. A friend's house on Saturday. Four or five names, over and over.

The things worth noticing are all departures from that:

• A new network on a school day, during hours the phone is normally on the school one.
• An open network late at night. Not sinister on its own — plenty of cafés and stations — but it says the phone was somewhere public rather than at a friend's house.
• No network at all for a long stretch on a day that normally has one. Usually a flat battery or a phone left at home; occasionally not.
• Home Wi-Fi at three in the morning, which tells you they are in but not asleep. That is a screen-time conversation rather than a safety one.

Open networks and the safety angle

There is a second reason to watch this log, separate from location. Open Wi-Fi with no password is a poor place to do anything private, and children join them without a thought because the phone offers.

The useful conversation is short: on a network with no password, other people on it can see more than they should, so do not sign into anything that matters. That is a two-minute chat you can have once, prompted by a real entry in a real log rather than an abstract warning.

The honest limits

• The tracker records the name a router broadcasts. Names are not unique and anyone can set one, so a network called "BT-HomeHub" tells you very little by itself.
• If the phone stays on mobile data, there is nothing to log. Plenty of teenagers never join anything but home.
• It cannot tell you what was done on the network. That is the browsing history tracker and the website blocker and web filter.
• Turning Wi-Fi off stops the log. It also stops the phone joining anything, so the trade is not much of a win for a child trying to hide.

Treat it as corroboration, never as the only evidence. A network name is a supporting detail in a picture the map has already drawn.

What the Wi-Fi tracker sits beside

Its natural partner is the GPS location tracker, which supplies the map, the history trail and the geofence alerts that the network log corroborates. The screen time app explains what the phone was doing while it sat on that network.

A network name tells you where the phone was, not what it did there. For that, the browsing history is the next place to look.