A speed tracking app needs your precise location to work, and a log of precise locations is sensitive. Where your trips start and end reveals your home and workplace, timestamps reveal your routine, and your stops can reveal a clinic, a place of worship or a friend’s house. The real privacy risk isn’t the speed readout. It’s what happens to the location data afterwards: whether it stays on your phone, gets uploaded to the developer, gets posted publicly, or gets passed to advertisers and data brokers.
What can location and speed data reveal? #
A few weeks of trips can show:
- Home and work, from where trips usually start and end.
- Your routine: when you leave, when you’re away, when the house is empty.
- Sensitive visits: medical appointments, religious services, support groups.
- Who you spend time with, when your data can be matched with someone else’s.
- How you drive, including speeding, which some companies would pay to know.
This isn’t hypothetical. In January 2024 the US Federal Trade Commission banned the data broker X-Mode Social and its successor, Outlogic, from selling sensitive location data. The FTC said the companies sold precise location data linked to advertising IDs that could track people’s visits to medical clinics, reproductive health facilities, places of worship and domestic abuse shelters, and that it was “not anonymized” (FTC). Much of that kind of data comes from ordinary apps.
Where does the data from a tracking app go? #
| Where it goes | What that means | Risk |
|---|---|---|
| Stays on the phone | Only you can see it, unless you share it | Low |
| Synced to the developer’s servers | Backed up, but held by a company, subject to its policies and security | Medium |
| Posted publicly | Routes and start points visible to anyone, often by default in social fitness apps | High if you don’t hide the ends |
| Shared with third parties | Advertising networks, analytics firms, data brokers | High, and hard to see |
Advertising is the part people miss. A free app with ads contains code from an ad network, and ad networks collect device identifiers. On iPhone, App Tracking Transparency means an app must ask before tracking you across other companies’ apps and websites, and you can say no.
How to check a tracking app before you install it #
- Read the store’s privacy summary. The App Store shows an App Privacy section (what’s used to track you and what’s linked to you), and Google Play has a Data safety section. Look for location in “used to track you” or “shared”.
- Look at the location permission it asks for. A speedometer needs location only while you’re using it. “Always” permission means it can collect location in the background.
- Check whether it needs an account. An account usually means your data is stored on the developer’s servers.
- Skim the privacy policy for three things: whether data is sold or shared, how long it’s kept, and how to delete it.
- Check the default sharing settings. In social fitness apps, find out whether new activities are public and whether you can hide the start and end of routes.
Red flags and good signs #
| Red flags | Good signs |
|---|---|
| Asks for “Always” location for a basic speedometer | Asks for location only while in use |
| Account required before you can see your speed | Works without an account |
| Location listed under data used to track you | No location data shared or used for tracking |
| Vague policy: “may share with partners” | Clear statement that data stays on the device |
| Public-by-default activity feed | Private by default; you choose what to share |
| No way to delete your history | Delete individual trips or all of them |
Settings that lock things down #
iPhone:
- Settings > Privacy & Security > Location Services: set each tracking app to “While Using the App” unless it genuinely needs background tracking.
- Settings > Privacy & Security > Tracking: turn off “Allow Apps to Request to Track” to refuse all tracking requests at once.
Android:
- In each app’s permissions, set location to “Allow only while using the app”.
- Many Android phones let you delete or reset your advertising ID in the privacy or Google settings.
Everywhere: delete trip history you don’t need, and review permissions every few months for apps you’ve stopped using.
Sharing and exporting routes #
Sharing is where most people leak their address, not through hacks. Two things to watch:
- Route images and share cards show the shape and ends of your route. If a trip starts at your front door, crop it or don’t post it.
- GPX files contain every recorded point with its time. Sending one to a friend is fine; posting one publicly gives away where you started, where you finished and when.
How Speedometer GPS handles your data #
Speedometer GPS is designed around keeping location on the phone:
- While-in-use location only. There’s no background tracking; close the app and it stops using location.
- Nothing is uploaded. Live readings and saved trips stay in the phone’s own storage. There’s no account and no sign-up.
- You control the history. Up to 100 trips are kept. You can delete any trip, or clear the whole history in Settings.
- Sharing is your choice. Nothing leaves the phone unless you share a trip card or export a GPX file. The share card includes a sketch of the route, so check where it starts before you post it.
It is ad-supported, which means it includes an advertising network’s code. On iPhone it asks for App Tracking Transparency permission first and serves non-personalised ads if you decline, and Settings has an ad privacy options entry. The full details are in its privacy policy.
For more on the difference between a personal speed alert and apps that report your speed to someone else, see map-based, geofence and manual speed limit alerts. If you keep trip logs for work, exporting trip distance for tax records covers what to keep.
Frequently asked questions #
Do speedometer apps track you? #
They all read your location, because that’s how speed is measured. Whether they track you depends on what they do with it. Check whether the app asks for background (“Always”) location, uploads trips to its servers, or lists location as data used for tracking in the store’s privacy section.
Can my insurance company see my speed app data? #
Not unless the app shares it with them or you give it to them. Some insurers offer their own driving apps that you opt into. A general speedometer app that keeps data on the phone doesn’t report to anyone.
Is it safe to share my driving or running routes? #
Mostly, if you hide the ends. Routes that start and finish at home reveal your address, and regular timestamps reveal when you’re out. Crop images, use the hide-start-and-end option in fitness apps, and don’t post GPX files publicly.
Does a speed tracking app need “Always” location access? #
A speedometer doesn’t. It only needs location while it’s on screen. Apps that detect trips automatically or record with the screen off need background access, which means they can collect location whenever they run.
How do I delete my trip data? #
In the app, look for delete options on each trip and a clear-history setting. If the app syncs to an account, deleting it on the phone may not delete the server copy; check the privacy policy for how to request deletion. In Speedometer GPS, trips exist only on the phone, so deleting them there removes them.