The iPhone Notes app can be used by cheaters to share messages in real time, delete everything instantly, and hide conversations behind passwords while looking completely innocent on their phone’s home screen.
The iPhone Notes app is now being used as a secret cheating tool. Australian private investigator Cassie Crofts recently revealed this growing trend in a viral video. We know the scary and painful feeling when we think our partner might be hiding something.
To cope with this feeling and help out, we will discuss the signs to watch for, expert advice, and practical steps to handle your worries without breaking any laws or invading privacy in any illegal way.
Why Cheaters Use iPhone Notes App – Expert Reveals The Secret
Cassie Crofts runs Venus Investigations in NSW and Queensland, and she has caught many cheaters using this exact method.
Here’s what she told her followers:
“Suspicious partners check text messages and Messenger, but rarely remember to check the Notes app.”

She explained how it works: “Instead of texting, which leaves a paper trail, cheaters use shared Notes: ‘Meet at the usual place?’ Delete. ‘That was amazing last night.’ Delete.”
The app seems too basic to be dangerous. Crofts says this is exactly the point: “Too boring, too innocent, which is exactly why it works.”
There are three main reasons cheaters pick Notes over other apps.
- First, real-time collaboration works like secret texting but creates no SMS records that show up on phone bills.
- Second, locked notes need custom passwords, so even if you grab the phone, you can’t read them.
- Third, the app syncs across iPhone, iPad, and Mac, which means secret talks can happen on any device, anytime, anywhere.
iPhone Notes App Cheating Signs – Real User Testimonies
Cassie Crofts’ TikTok video showing this cheating trick got 188,200 views and counting. Thousands of people responded with their own stories.

Real users shared what they found and what they did. One person wrote: “Yes. His Notes app was open on his laptop, and that’s how she found out.” Another admitted: “Yes, I’ve done it, and you can lock Notes with a custom password.”
The tricks go beyond Notes. Someone else said: “My ex husband was messaging his lover through Words with Friends gaming app.”
People had mixed feelings about the video. One viewer commented: “Such a shame you’ve given them ideas, but also helping us gals out.” Many reported finding affairs by accident when Notes synced to shared iPads or family computers.
Reddit user Vollen595 described the mechanics of shared Notes communication. The method functions like a shared whiteboard where one person writes a message, allows the other party to read it, then deletes it.

The other person responds on the same note, which gets read and deleted. This creates a live private conversation between two people with no receipts and nothing saved. Deleting the note when necessary removes all risk.
Reddit user Snoo17206 reported discovering infidelity through shared Notes functionality. The user found their spouse still messaging an affair partner through a shared note weeks after claiming to end all contact.

While the user acknowledged that innocent explanations might exist, they considered shared Notes a valid concern worth investigating further.
How iPhone Notes Secret Messaging Works – Technical Breakdown
The differences between regular texting and Notes app messaging show why cheaters prefer Notes. This table breaks down the key points that make Notes safer for hiding affairs.
| Feature | iMessage/SMS | Shared Notes App |
|---|---|---|
| Visible chat history | Yes | No (edits replace) |
| Notifications | Obvious | Minimal/hidden |
| Suspicious appearance | High | Low (looks innocent) |
| Deletion trace | Recoverable | Permanently gone |
| Cross-device sync | Limited | Full (iPhone/iPad/Mac) |
Let’s understand this. Someone creates a note and taps the small person icon at the top. They add another person’s iCloud email address as a collaborator. Both people can now type in the same note at the same time.
Small dots appear when the other person is typing. They can add photos, files, or plans for meeting up. Password locks keep the note hidden even if someone looks through the phone.
When they’re done, deleting the note removes everything forever with no way to get it back.
Behavioral iPhone Notes Cheating Signs – What to Watch For
Changes in how your partner acts around their phone can reveal hidden activity. One sign alone means nothing, but several signs together create a worrying pattern.
The Common signs of cheating appear in three main categories: phone usage patterns, security changes, and shared note indicators.
Let’s take a look at each one of them:
1. Phone Usage Pattern Red Flags
Your partner spends strange amounts of time in the Notes app, especially late at night when you’re asleep.

They quickly close Notes the second you walk into the room or come near them. The Notes app keeps showing up in their recently used apps when you glance at their screen.
2. Security & Privacy Changes Indicating iPhone Notes Cheating
They suddenly start locking certain notes with passwords, even though they never did before. The Notes app gets hidden from the home screen or moved into folders where it’s hard to spot.

They get angry or defensive when you ask simple questions about what they’re writing in Notes. They add new Face ID settings, change passcodes, or make their phone harder to access overall.
3. Shared Notes Specific Red Flags
A small person icon appears next to some note titles, which means someone else can see and edit that note. Note titles are boring and vague, like “Shopping,” “Ideas,” or “To-Do,” but they guard these notes carefully.

The Recently Deleted folder gets emptied all the time to erase evidence. Unknown email addresses show up as collaborators in shared notes.
iPhone Notes App Cheating Checklist – Matching Behavioral Signs
Certain behaviors and phone changes often show up when someone is using affair apps. When you see both happening together, the pattern becomes clearer and harder to ignore.
| Relationship Behavioral Sign | iPhone Notes App Digital Sign |
|---|---|
| Emotional distance/coldness | Increased Notes app screen time |
| Extreme defensiveness | Locked notes with passwords |
| Unexplained schedule changes | Late-night Notes activity patterns |
| Reduced intimacy/affection | Hidden photos embedded in notes |
| Blame shifting/gaslighting | Overreaction to Notes questions |
| New secretive habits | Notes in “Shared” folder section |
Additional Financial Red Flags (Cassie Crofts Insight):
Cassie Crofts also watches for money clues. Many cheaters stop using credit cards and start pulling out cash instead.

This hides restaurant bills, hotel stays, and gifts. As Crofts puts it: “Cash leaves no trace ….$200 restaurant bill, they weren’t dining alone.” Watch for sudden cash withdrawals or unexplained missing money alongside the phone signs.
How To Check iPhone Notes Cheating Ethically? – Safe Methods
You need answers, but you also need to stay on the right side of the law. There are ways to look for patterns without hacking phones or breaking privacy rules.
Without Invading Privacy or Breaking Laws:
Go to Settings > Screen Time > See All Activity to check how much time is spent in Notes compared to other apps.
Look at overall phone behavior changes instead of one weird moment. Notice if collaboration notifications pop up on the lock screen, which shows shared note activity.
Conversation Starters for iPhone Notes Cheating Concerns:
Try gentle questions that don’t sound like attacks. Say things like: “I’ve noticed you’ve been using Notes a lot lately. Is everything okay?” Or: “Can we talk about what’s been feeling different between us?”
Use “I feel” words to stay calm: “I feel disconnected when you’re secretive with your phone.” Ask open questions that need more than yes or no answers.
What NOT to Do When Suspecting iPhone Notes App Cheating?
Even when you feel desperate for proof, some actions will make everything worse. These boundaries protect you from legal trouble and decisions you’ll regret later.
Legal and Ethical Boundaries:
Never try to hack or break into their device. This breaks the law. Don’t install spy apps or tracking software without permission. This violates surveillance laws.
Don’t log into their accounts or read their private messages without consent. All of these can lead to criminal charges against you.
Relationship Safety Guidelines:
Don’t accuse them of cheating based only on Notes app usage without other proof. Don’t ignore how this stress affects your mental health. Don’t post their private details on Facebook, Instagram, or other social media.
This creates legal problems and damages reputations. Don’t panic over one weird sign. Wait until you see multiple patterns over several weeks.
iPhone Notes Cheating Confrontation – When and How to Talk
When multiple red flags pile up, and your gut tells you something is wrong, you need to have a real conversation. How you prepare makes the difference between getting the truth and starting a fight.
Preparing for the Discussion:
Pick a time when you’re both calm and not rushed. Choose a private place where you won’t get interrupted. Write down the behavior patterns you’ve noticed, not phone evidence you got by snooping.
Get ready for three possible answers: denial, gaslighting, or confession. Have a friend or therapist ready to support you after the talk.
During the iPhone Notes Cheating Conversation:
Say what you’ve seen without throwing accusations: “I’ve noticed you spend more time on your phone late at night and close apps when I walk by.” Talk about how the behavior changes make you feel and damage trust.
Really listen to their explanation and check if the story makes sense. Set clear rules about phone openness and honesty moving forward, no matter what they admit or deny.
When to Seek Professional Help For iPhone Notes App Cheating?
Some situations need expert help that goes beyond what you can do alone. Knowing when to call professionals saves time and money and protects your emotional health.
Professional Investigation Services:
Licensed private investigators use legal methods to gather proof that works in court. Lawyers become important if you’re heading toward separation or divorce to protect your rights and money.
Mental Health & Relationship Support:
Infidelity often leads to deep trust issues and emotional pain that need professional care. Get couples counseling to deal with cheating and broken trust.
Therapists who work with infidelity help you process complex feelings. Beyond Blue gives mental health crisis support when stress gets too heavy.
Know When to Walk Away:
Trust your gut about whether the relationship can be saved. Notice patterns where they keep betraying you over and over.
Put your emotional and physical safety first, above trying to fix the relationship. Protect your money and assets by talking to a lawyer early if separation looks likely.
Related Reads:
Conclusion: Watch For Iphone Notes App Locked Notes, Increased Usage, And Defensiveness
Some people have used the iPhone Notes app to cheat because of its innocent appearance and powerful hidden features. Private investigators like Cassie Crofts confirm this trend happens regularly in their cases.
When you notice multiple warning signs together, trust your instincts. Good communication and expert help matter whether you’re rebuilding trust or ending things. Your feelings are real, and your need for truth is fair.
Either trust comes back through total honesty, or the relationship ends with your dignity intact. Take care of yourself first. You deserve a relationship built on honesty and respect.
FAQs
Hacking requires illegal technical skills, but anyone added as a collaborator to a shared Note can access it legally, and cloud syncing automatically shows Notes on all devices logged into the same iCloud account.
Check the App Library by swiping left past your last home screen, look at Screen Time usage data in Settings, or search Spotlight to find all installed apps, including hidden ones.
Look for high Screen Time usage on unfamiliar apps, watch for apps disguised as calculators or utilities, notice disabled notifications on certain apps, and observe quick app-switching when you approach.
Decoy apps disguise themselves as calculators, photo editors, weather apps, or games with innocent names like “Calculator%” or “Private Photo Vault” that hide secret messaging features inside seemingly normal tools.
Watch for behavior changes like secrecy and distance, check Screen Time data if accessible, search his email on dating sites using free tools, and reverse image search his photos on Google.