You do not need to be a security expert to make your phone a lot more private. A handful of settings — location, advertising and app permissions — do most of the work, and they take about twenty minutes to sort out once you know where to look. Here is what to change and why it matters, starting with the ones that give you the most bang for your effort.
Lock down location permissions
Start with location, because it is the setting that leaks the most about you. Set every app to ‘only while using’ instead of ‘always’, and switch off precise location for the apps that do not need it. Weather and maps genuinely need your position; most shopping, games and social apps do not. Once your dial is dropped to ‘approximate’, the app still works but it cannot pin you to a specific street. That alone removes one of the most invasive data points your phone shares, and it is the change most people notice first.
Turn off ad personalisation
Phone makers make a lot of money from your habits, and they sell that as targeted ads. Dig into your privacy or advertising settings and you will find a toggle to ‘limit ad tracking’ or ‘opt out of personalised ads’. Turning it on will not stop ads — nothing does — but it stops most of the profiles being built from what you tap, search and watch. If you want to go further, reset your advertising identifier every few months; every phone has a button for it.
Review permissions app by app
This is the single biggest win. Open your settings and walk through which apps can reach your camera, microphone, photos, contacts and location. Revoke anything that does not need it. A flashlight app does not need your contacts; a game does not need your microphone. When an app asks again the next time it needs access, you can decide then rather than handing out permission forever up front. This is where most people find they have been far more generous than they meant to be.
Delete what you no longer use
Unused apps are not just clutter — they are data-hungry apps you forgot about. Every app you have not opened in months can still be collecting information in the background. Delete the ones you do not use and check your app store settings for any features quietly sharing your data. Fewer apps means fewer places your information can end up, and it frees up storage and a bit of battery as a side benefit.
Keep your accounts locked down too
A private phone still leaks through an insecure email account. Switch on two-factor authentication wherever you can, use a password manager instead of reusing the same password everywhere, and consider a burner email for sign-ups you will never revisit. A password manager means you only ever have to remember one master password, and every account gets its own unique one. Phone privacy is strongest when the accounts signed in on it are equally hard to crack.
Pros
- It takes about twenty minutes and costs nothing.
- Most of these changes are one-time toggles you rarely touch again.
- You stop apps collecting data you never agreed to share.
- Turning off precise location keeps your address and routine safer.
- Fewer permissions and fewer apps means less risk if one gets breached.
Cons
- Apps will occasionally ask for a permission again, which gets annoying.
- A few features, like photo backup and smart home controls, rely on permissions you may want to keep.
- You will still see advertisements — they just stop being personalised.
- It takes a little effort to walk through every app the first time.
- None of this is a substitute for strong passwords and two-factor authentication.
The honest verdict
Best for: anyone who wants meaningful privacy gains with a small time investment, and no technical background.
Skip it if: you are happy with how your phone behaves, or you are looking for total anonymity — these settings reduce tracking, they do not erase you.
Frequently asked questions
Will these settings break my apps?
Rarely. Most apps work fine once you grant access only when they are open, and they will ask if they need something again.
Does disabling ad personalisation stop ads?
No. You still see ads, but they are no longer built around your activity and habits.
How often should I review these settings?
Once after setup, then a quick pass every few months, especially after installing a batch of new apps.
Do privacy settings slow down my phone?
No. Limiting who tracks you has no meaningful effect on speed or battery.
Next step: set a reminder to run through this list once today, and again in three months. Privacy on a phone is a habit, not a one-time fix.
