How to Catch a Cheater (GUARANTEED!)

Huge Warning

NOTE: This article assumes you have lawful access through cohabitation or shared accounts/devices. Using these techniques without legal rights can and should get you into extreme hot water including prison time. Don’t violate people’s rights! But also, don’t allow yourself to be deceived.

Also, note that this article can and will be used by people who are cheaters to attempt to think through all the ways they can get caught. And if that applies to you, I hope you recognize it’s not worth all the effort required. Better to just address your issues straight up and move on.

#tldr

This article is VERY long, and the list is exhaustive. If someone is trying to hide something from you, it’s virtually impossible to cover every track listed here. Most people won’t be sophisticated enough to even cover up a fraction of these methods. But please don’t drag yourself into a pit of despair endlessly searching out of paranoia. If you are almost certain there is something to find – this guild will help you find it. But if you are looking for something that simply doesn’t exist it will also drive you crazy because there are so many places to look.

Intro

Living with someone means you often share not just space, but technology – phones, cars, computers, apps, and even household accounts. These tools create a wealth of data that can reveal a person’s activities. Whether you’re concerned about unusual behavior or simply curious about how shared tech tracks activity, it’s important to know what data is being collected, how to access it, and what it might reveal – especially if you already have access to shared devices or accounts.

This guide explores all known methods, mainstream and obscure, for discovering a partner’s activity using digital footprints. It assumes lawful access (e.g., unlocked devices, shared accounts, or household systems). This isn’t about spying. It’s about situational awareness in an age where privacy and transparency are often in conflict.

This article breaks down every possible method including ones that utilize technology such as online and digital investigative techniques, and also includes traditional / offline methods and techniques.

Smartphone-Based Tracking Methods

Find My iPhone or Find My Device

If both you and the person use Apple devices, you may be able to locate their phone through Find My. Google offers a similar feature for Android.

To access:

• Apple: iCloud.com or Find My app
• Android: google.com/android/find

This allows real-time location tracking if the device is signed in and location is enabled.

iPhone Location History

iPhones automatically log “significant locations” as part of Apple’s system services. This allows the phone to provide personalized location services, but it also keeps a detailed record of where the device has been.

To access it:

• Open the iPhone and go to Settings
• Tap Privacy & Security > Location Services > System Services > Significant Locations
• You’ll find a list of places visited, including dates and estimated times spent at each location

More information: https://www.airdroid.com/parent-control/check-iphone-location-history/

Facebook Location History

If the Facebook app has had location services enabled, it may have stored a timeline of all locations the user has visited while using the app.

To view it:

• Log into the Facebook account
• Navigate to Settings > Your Facebook Information > Location History
• You may be redirected to Meta’s Activity Log to review the data

Video guide here:
https://www.youtube.com/watch?v=JJo4td7c1RQ

Google Maps Timeline

Google Maps Timeline keeps a detailed record of a user’s location history if location services and web activity tracking are turned on. It shows where the person has been, when, and how they got there.

To access it:

• Visit https://www.google.com/maps/timeline
• Sign in to their Google account
• Browse by date to see visited locations, travel routes, and stop durations

Video example:
https://www.youtube.com/watch?v=UBWo_sVlaTc

Google Chrome Autofill and Saved Passwords

Web browsers like Chrome often store login credentials, autofill form data, and account activity. This can reveal access to certain services like rideshare apps, dating websites, or even hidden accounts.

To review:

• Open Google Chrome on their device
• Go to chrome://settings/passwords
• Review saved usernames and passwords, along with site visit frequency

Tracking Apps (When You Have Access to the Device)

If you have access to an unlocked phone, it’s possible to install a family safety tracking app that runs in the background. These apps often log GPS location, routes, and movement patterns.

Popular options include:

• http://trackview.net/
• https://isharingsoft.com/
• https://family-locator.com/index.html
• https://www.followmee.com/default.aspx
• https://famisafe.wondershare.com/

These apps are often marketed for child safety or family tracking but are capable of silently reporting real-time data.

Rides, Travel, and Vehicle Tracking

Uber and Lyft History

If a person is attempting to avoid detection via personal vehicle tracking, they may use a rideshare service. These apps keep a log of every trip, including pickup and drop-off locations, times, and fares.

To check:

• Open the Uber or Lyft app
• Navigate to the Ride History section
• Review trips, including locations and timestamps

Vehicle Manufacturer Apps

Modern vehicles equipped with connected systems often have companion apps that allow owners to remotely start the engine, locate the car, or view trip logs.

Examples include:

• FordPass
• myChevrolet
• Hyundai Bluelink
• Toyota Connected
• OnStar

If you have shared access to the app, you can check:

• Current vehicle location
• Travel history or mileage logs
• Alerts for vehicle movement

Toll Tag and Parking Pass Logs

Transponders like EZPass, SunPass, or TxTag store a history of toll crossings. If these are tied to a shared account, you can access detailed logs of time and location.

To review:

• Log into the toll service account
• Download trip history or transaction logs

Home and Smart Device Monitoring

Smart Video Doorbells and Security Cameras (Ring, Nest, Arlo, etc.)

Smart video systems installed around the home automatically record activity triggered by motion, doorbell rings, or manual activation. If you share access to these systems, they can reveal who entered or left the house, when it happened, and sometimes even who they were with.

Most platforms store timestamped recordings that include:

• Doorbell rings and visitor interactions
• Departures and arrivals via the driveway or sidewalk
• Vehicle movements if the camera faces the street or garage
• Unusual access times or unexpected guests

If cloud storage is enabled, you can usually:

• Log into the shared account via app or web browser
• Review the event log or history by date and time
• Download video clips for review or backup

Popular systems include:

• Ring (Amazon)
• Google Nest (Google Home)
• Arlo (Netgear)
• Eufy (Anker)
• Blink (Amazon)
• Wyze

Some systems also send real-time notifications, so you may receive alerts if activity occurs while you’re away or asleep. If cameras are installed indoors, you may also be able to monitor specific rooms, doors, or entry points.

Even if the person never interacts directly with the camera, their presence (or absence) at e

Smart Locks and Digital Entry Systems

If your home uses a smart lock system (August, Yale, Schlage Encode, Kwikset Halo, etc.), it may log every lock and unlock event, including the user, time, and method (keypad, app, manual).

To check:

• Open the smart lock’s app or web interface
• Review activity logs for timestamps, unlock methods, and user profiles
• Look for unusual patterns like late-night unlocks, manual overrides, or codes entered when the person claimed to be elsewhere

Some locks allow multiple user codes, so seeing a code assigned to an unknown person is a red flag.

Garage Door Openers and Logs

Modern garage systems (like MyQ by Chamberlain or LiftMaster) often log when the garage door is opened or closed. If you have access to the shared system, you may be able to track comings and goings this way.

To use:

• Log into the MyQ app or web dashboard
• Review event logs, which include open/close times
• Cross-reference with the person’s claimed location or activity

Home Automation Routines and Geofencing

Smart home systems like SmartThings, Apple HomeKit, or Google Home often include automation rules tied to a person’s location. If geofencing is enabled, the system may log when a specific user leaves or returns to the home.

To investigate:

• Look for automation logs like “John left home at 6:22 PM” or “Thermostat switched to Away mode”
• Check routines that trigger when specific users arrive or depart

Even lighting or thermostat schedules may show behavioral shifts (e.g., house temperature drops because someone manually turned it off from a remote location).

Alexa, Google Home, or Siri History

Smart speakers and digital assistants log voice queries and activities. You may be able to see what was said, when, and by whom.

To check:

• Alexa: Alexa app > More > Activity
• Google Home: Google app > My Activity
• Siri: Search history may be synced to iCloud if enabled

You may also hear stored voice recordings, which are sometimes retained unless manually deleted.

Photo, File, and Cloud Account Clues

EXIF Metadata in Photos

Most photos contain metadata that reveals the time, date, and even GPS coordinates of where they were taken.

To view:

• Open the photo and tap info or swipe up
• Use EXIF viewer tools like http://exif.regex.info/exif.cgi for exported images

This metadata may still exist even if the photo is deleted from viewable galleries.

iCloud and Google Sync Data

Apple iCloud and Google Drive sync everything from browsing data to photos. This can expose deleted files, recently opened documents, or GPS-tagged image files.

Look for:

• Deleted photos that remain in the recently deleted album
• Synced browsing history or tabs
• File names or document content that suggest inappropriate communication

App Store or Google Play Purchase History

App stores maintain a history of downloads and purchases, even if apps are later deleted from the device.

To check:

• App Store > Profile > Purchased > My Purchases
• Google Play > My Apps > Library

Apps to look out for:

• Private messengers (Signal, Telegram)
• Hidden vault apps (Calculator+, Keepsafe)
• Dating platforms or burner number apps

Deleted or Hidden App Evidence

Some apps don’t appear unless explicitly revealed in device settings. You may still see usage in:

• Storage > App Data
• Battery Usage > Last 24 hours or 7 days

Check for mismatches between app usage logs and visible installed apps.

Financial and Travel Records

Mobile Carrier Account History

Carrier portals often provide metadata about calls, messages, and data usage. While content is not visible, timestamps and contact numbers can reveal behavioral trends.

To check:

• Log into your mobile carrier’s web portal (Verizon, T-Mobile, AT&T, etc.)
• Review call logs and SMS timestamps
• Cross-reference frequent or unexplained contacts

Phone Bills (Landline)

While most people rely on mobile phones today, older billing systems may still reveal call patterns. Itemized phone bills can show who was contacted and when.

To use this:

• Log into your household or joint carrier account
• Look for repeated numbers, long calls at strange hours, or unknown area codes
• Match phone calls to time periods where stories or alibis don’t line up

Cash Withdrawals and ATM Locations

If your partner is trying to avoid traceable digital purchases, cash withdrawals may become more frequent. ATMs log exact times and addresses.

To check:

• Review bank or credit union transaction records
• Look at ATM names and addresses to determine where they were
• Note any spike in withdrawal frequency or unusually high amounts

Credit Card and Bank Statements

Monthly statements from shared credit card or bank accounts can reveal locations, purchases, and spending patterns. Even small transactions like parking meters, gas stations, or coffee shops may provide context.

To review:

• Log into the joint or household credit card or bank account
• Check for unfamiliar businesses, locations, or time patterns
• Pay attention to recurring charges, out-of-town expenses, or high-value cash withdrawals

Airline Miles and Hotel Rewards

Shared travel rewards programs often retain a full record of travel history, redemptions, and point usage. Many people forget that flights and stays are tracked even if booked using points.

To check:

• Log into accounts like Hilton Honors, Marriott Bonvoy, Delta SkyMiles, etc.
• Look for recent stays, upcoming trips, or redeemed miles
• Match locations or dates with known information

Email Receipts and Notifications

Email inboxes can include receipts for purchases, booking confirmations, and account activity. Even if the person deletes emails, remnants may exist in trash folders or email filters.

Search inboxes for:

• Uber, Lyft, hotel, or travel booking confirmations
• Receipts for suspicious purchases
• Notifications from dating apps or secondary services

Venmo and Cash App Activity

These apps can show transaction history, including notes, usernames, and even emojis. While public settings can be turned off, many users forget to do this.

To investigate:

• Open the app
• Review recent transactions and friend lists
• Look for unexplained payments, coded notes, or unexpected contacts

Gas Station Loyalty or Club Cards

Some people use fuel reward cards or warehouse memberships (like Costco or Sam’s Club) to earn points or discounts. These cards often log purchase dates and locations.

You can access this by:

• Logging into the rewards account
• Reviewing purchase history, including date, time, and location

Toll Tags and Parking Passes

Toll transponders like EZPass, SunPass, or TxTag create a record every time the car crosses a toll point. These accounts can show time, date, and location of toll road usage.

To access:

• Log into the toll account tied to the transponder
• Review the transaction history
• Match travel times with stated whereabouts

Similarly, check for:

• New or temporary parking decals
• Garage parking stubs left in the glove box or console

Physical Evidence and Routine Observation

Physical Receipts and Packaging

People often leave behind receipts, food containers, packaging, or promotional items from places they’ve been. These may be found in the car, home office, bags, or trash.

To observe:

• Look for gas, restaurant, and parking receipts
• Review discarded packaging or flyers
• Examine pockets and bags for ticket stubs or wristbands

Odometer and Fuel Usage

Mileage and fuel consumption can point to trips not accounted for. Comparing odometer readings over time or matching with known trips can show whether extra miles were driven.

To monitor:

• Check the vehicle’s odometer regularly
• Compare mileage to known usage patterns
• Note any unusual fueling frequency or locations

Calendar Entries and Paper Notes

Analog planners, calendars, and sticky notes may contain details that weren’t meant to be shared. Even scraps of notes can reveal addresses, names, or times.

To check:

• Review physical calendars, planners, or notebooks
• Examine loose papers or sticky notes on desks or fridges

Mail and Packages

Mail from hotels, services, or unfamiliar names may indicate other relationships, travels, or obligations.

To monitor:

• Watch for unexplained packages or letters
• Track return addresses or sender names
• Keep an eye on shared delivery services like Amazon or UPS

Trash and Recyclables

Disposing of evidence is common, but not always thorough. Useful information may be found in trash bins or recycling.

To discreetly review:

• Check kitchen, bathroom, and office trash
• Examine packaging, labels, and printed emails

Gym, Dry Cleaning, and Local Services

Sudden new memberships, dry-cleaned outfits, or service visits (massage, waxing, etc.) can be part of new routines that signal something out of the ordinary.

To investigate:

• Look for service receipts or business cards
• Observe new bags, tags, or appointment reminders

Changes in Routine or Behavior

Behavioral shifts—like changes in grooming, wardrobe, hygiene, or departure times—can indicate personal developments worth noting.

To notice:

• Track changes in sleep or grooming habits
• Note erratic or unexplained absences
• Pay attention to last-minute work claims or canceled plans

Advanced or Uncommon Clues

Wearables and Health Trackers

Devices like Apple Watch, Fitbit, Oura Ring, or WHOOP log not only location but also sleep, stress, and activity levels. These can help identify timeline inconsistencies.

To check:

• Open the health companion app
• Look at steps, GPS routes, and sleep records
• Watch for exertion spikes during odd hours

Hotspot or Tethering Activity

People trying to conceal other device use may rely on their phone’s hotspot to avoid using shared Wi-Fi networks. This is often visible via carrier logs or battery drain.

To detect:

• Check phone settings for tethering
• Review battery usage patterns
• Look for tethering spikes on data plans

VPNs and Private Browsing

VPNs, private browsers, or anonymous networks are used to mask internet behavior. However, clues often remain in app history, battery logs, or router-level data.

To review:

• Check for apps like NordVPN, Tor, DuckDuckGo, or Brave
• Inspect router admin panels for encrypted traffic patterns
• Cross-check device logs against expected behavior

Router or Network Logs

If you manage the home Wi-Fi router, you may be able to see what devices were connected and which websites were visited.

Steps vary by router, but generally involve:

• Logging into the router admin panel (192.168.0.1 or similar)
• Viewing the connected devices list
• Reviewing DNS logs or parental control history (if enabled)

Some routers can show which websites were accessed and when.

Photo Sync to Unknown Devices

Cloud services sometimes sync content to multiple devices. Shared accounts may unintentionally mirror content to unknown or hidden devices.

To check:

• Review synced devices under iCloud or Google Photos
• Look at album sharing settings
• Remove unfamiliar device connections

Social Media Backgrounds and Tags

Sometimes a person’s activities are revealed in the background of a friend’s post, a reflection in a photo, or via tagged content they didn’t post themselves.

To explore:

• Search for tags or mentions on Instagram, Facebook, etc.
• Examine backgrounds or reflections in photos
• Use third-party tools to download and archive Stories

Duplicate or Hidden Profiles

People may maintain separate social media or dating profiles under aliases. These are sometimes discoverable through shared email recovery options, phone numbers, or browser history.

Check for:

• Alternate email addresses or usernames
• Saved logins or autofill data pointing to unknown accounts
• Other devices signed in with alternate profiles

App Store or Google Play Purchase History

The app store can reveal whether someone has downloaded suspicious or unexpected apps, even if they’re no longer installed.

To view:

• Open App Store or Play Store
• Tap profile icon > Purchase History or My Apps > Library

Watch for encrypted messengers, dating apps, or vault-style apps.

Deleted or Hidden App Evidence

Some people install hidden apps or use vault apps disguised as utilities. Even after deletion, traces may remain in app data or battery usage stats.

Check:

• Settings > Storage > App Data for leftover traces
• Battery > App Usage (look for strange or missing apps)
• Settings > Apps > Show System or Hidden Apps

Bluetooth Device History

Devices maintain a history of Bluetooth connections. Unknown or unusual connections—like car audio systems or unknown earbuds—could suggest the user has been near unfamiliar people or vehicles.

To access:

• iPhone: Settings > Bluetooth > My Devices
• Android: Settings > Connected Devices

Wi-Fi Connection History

Smartphones store a list of previously joined Wi-Fi networks. Seeing unexpected network names may indicate visits to unknown homes or locations.

To view:

• Open the phone’s Wi-Fi settings
• Look at the list of saved or previously joined networks

You can look up unfamiliar Wi-Fi names using wigle.net to potentially locate where they’re based.

Final Word: Understand the Limits and Risks

Each of these methods assumes a level of lawful access, cohabitation, or shared digital ecosystem. Using them outside these boundaries can quickly cross into unethical or even illegal territory.

But within a shared home, reviewing digital footprints might provide clarity, accountability, or even peace of mind. At the very least, it highlights how much modern technology knows and reminds all of us to treat trust as something earned, not assumed.