Why These Settings Go Untouched

When you install an app, the default settings are rarely chosen with your privacy in mind. They're typically set to collect as much data as the developer is permitted to gather. Because most people move quickly through setup screens, those defaults stick — sometimes for years.

The result is a quiet accumulation of data sharing you may never have consciously agreed to. Ad identifiers stay active, location history builds up, and contact lists get synced to remote servers — all without anyone doing anything obviously wrong. The settings exist; they're just not easy to find.

This checklist is designed to change that. It covers the categories of settings most worth reviewing across the apps on your phone, regardless of which specific apps you use. For a broader look at what permissions mean in the first place, see what each app permission actually grants.

Location Access

Review which apps have "Always On" location access and switch any that don't genuinely need it to "While Using" or "Never." Must
Check whether your map or navigation app retains a location history and delete stored data if you don't actively use that feature. Should
Disable "precise location" for apps that only need a general area — weather and local news apps rarely need your exact GPS coordinates. Should

Ad Tracking and Personalisation

On iOS, open Settings > Privacy & Security > Tracking and verify that "Allow Apps to Request to Track" reflects your actual preference. Must
On Android, go to Settings > Privacy > Ads and reset or opt out of ad personalisation using the identifier available in your version of Android. Must
Inside individual apps (especially social media), find the "Ads" or "Data" section in settings and turn off interest-based or behavioural ad targeting where offered. Should
Check whether apps offer an option to limit data shared with third-party advertising partners and enable that restriction if available. Should

Data Sharing and Third-Party Access

Review the list of third-party apps and services connected to your main accounts (Google, Apple ID, social platforms) and revoke access for any you no longer use. Must
Look for a "Data Sharing" or "Partners" section in apps you use frequently and opt out of sharing with analytics or marketing partners where possible. Should
Check whether messaging or email apps sync your contact list to a remote server and disable that feature if you prefer to keep contacts local. Should

Camera, Microphone, and Contacts

Audit which apps have microphone access granted and remove it from any app that has no clear audio function. Must
Check camera permissions and limit access to apps where photo or video capture is a core feature you actively use. Must
Remove contacts access from apps that requested it during setup but don't have an obvious social or communication function. Should

Account and Profile Visibility

On social platforms, confirm who can see your profile, posts, and contact details — check both the main visibility setting and any secondary settings for search and tagging. Must
Disable "activity status" or "last seen" indicators in messaging apps if you'd prefer others can't see when you're online. Nice to have
Turn off read receipts in messaging apps if you want to respond on your own schedule without signalling that you've seen a message. Nice to have

Stored and Cached Data

Check whether apps like browsers, maps, or shopping tools have saved payment details, address autofill data, or search history, and clear anything you no longer need. Should
Review whether cloud backups for photos or documents include sensitive content, and adjust which folders or albums sync automatically. Should
Delete any app data download or export files you've previously requested and saved locally if they're no longer needed. Nice to have

How to Work Through This Checklist

You don't need to do this in one sitting. A practical approach is to pick one category — say, social media apps — and spend ten minutes going through those settings before moving to another category another day.

Required

Your phone's system Settings app

Provides a central view of all app permissions — location, camera, microphone, contacts — so you can audit multiple apps from one place rather than opening each individually.

Required

In-app privacy or data settings

Each app's own settings menu often contains options not visible from your phone's system settings, including ad preferences, data sharing toggles, and connected account management.

Optional

Password manager

Useful for tracking which third-party services you've signed into using a main account, helping you identify connected apps to review or revoke.

Start with the apps you use most often, since those collect the most data over time. After your first review, blocking out 20–30 minutes once a year is usually enough to stay on top of changes, since apps frequently update their settings menus and occasionally introduce new data-sharing options.

Settings Menus Change With App Updates

App developers frequently reorganise their settings as part of updates, so the path to a particular option may shift between versions. If a setting described in general guidance seems to have moved, look for a "Privacy," "Data," or "Security" section within the app's main settings menu. Some platforms also move sensitive options deeper into sub-menus over time, so patience and a methodical search pays off.

If you find that your app library has grown unwieldy and you're not sure which apps to prioritise, managing your app library over time is a useful companion exercise. For a more comprehensive account security review, the personal data security audit checklist covers passwords, recovery settings, and more in one place.

It's also worth noting that toggling a social platform's visibility settings to a more restricted option doesn't always mean what you might expect — how social media privacy controls actually work explains the real limits of those controls.

Changing Settings Won't Erase Past Data

Adjusting your privacy settings going forward does not automatically delete data that has already been collected. If you want to request deletion of historical data, look for a "Delete my data" or "Download and delete" option within the app or the platform's privacy centre. In many cases, you can submit a formal data deletion request under applicable data protection rules — check the app's privacy policy for instructions specific to your region.