The short answer
The most reliable real-time GPS tracking app is the one that keeps reporting when the phone is locked, in a pocket, on a bad signal — not the one with the prettiest map. Look for an app that runs as a visible foreground service, holds positions while offline and sends them when signal returns, filters out bad GPS fixes, and tells you clearly when a device has gone quiet.
What “reliable” really means for a tracking app
- It keeps running. Phones aggressively close background apps to save battery. A tracking app that isn’t built for this simply stops, and you only notice when the dot hasn’t moved all afternoon. On Android the reliable approach is a foreground service with a visible notification.
- It survives bad signal. Positions taken with no signal should be stored and sent later, not lost. See GPS without phone signal.
- It rejects bad positions. Phones occasionally report a wildly wrong location. A good app filters those out instead of drawing a line across town.
- It is honest about staleness. The map should show when a device was last heard from, so you can tell “parked” from “phone off”.
How to test a real-time GPS tracking app before you commit
- Install it on two or three real phones — including the oldest phone in your team.
- Lock the phones, put them in pockets and go about a normal working day.
- Check the route history in the evening: are there gaps? Straight lines where there were turns?
- Drive through a known dead spot and check the route fills in once signal is back.
Most reliable GPS tracking service for small teams
For a small team, reliability also means simple. Fewer moving parts — no hardware to fit, no installer, nothing to charge — means fewer things to fail. A phone-based service that everyone can set up in minutes is usually more dependable in practice than a sophisticated system nobody maintains.
How TrackLink approaches reliability
- Tracking runs as an Android foreground service with a visible notification, so it keeps going with the screen off.
- Positions are filtered for accuracy and smoothed, and a parked phone stops filling your history with jitter.
- Positions taken offline are held on the phone and uploaded when the connection returns.
- You choose how live it is: every 30 seconds, 60 seconds or 5 minutes, with 5-second and 1-second modes as explicit opt-ins.
- The Hub map shows online, idle and offline at a glance.
The honest limitation: TrackLink is Android-only on the tracking side. The dashboard works in any browser.
Common questions
Why does my tracking app stop working when the phone is locked?
Most likely the phone's battery optimisation is closing it. Reliable tracking apps use a foreground service, and some phone makers also need the app excluding from battery saving.
Are free tracking apps reliable enough for a business?
Family location-sharing apps are built for occasional check-ins, not a working day of route history and team visibility. They can work for a very small team, but you lose the business features.