From those photos from a drunken night out to your browser's search history, our phones are already a treasure trove of potentially embarrassing information.
But iPhone users have been mortified to find another way their devices are holding on to revealing information.
In a viral TikTok post with over 700,000 views, one Apple user warned that their calculator app now has a secret history.
The distressed user complained that the app had revealed their habit of using the calculator for some shockingly simple calculations.
In their post, the user wrote: 'Y'all please remember to clear your CALCULATOR history every once in a while.
'My bf just saw mine and I would have rather him gone thru my internet history'.
However, they were not alone as other iPhone users rushed to the comments to share the most basic sums from their history with one adding: 'Mine really said 18-3'.
So, if you'd rather no one knew about the time you had to check the result for 2+2, here's how to find and clear your calculator's history.
The calculator's history function on the iPhone arrived as part of the iOS 18 update last year.
Since the update, the calculator app has been keeping a record of every calculation made within the last 30 days.
While it might seem surprising that the calculator app could be such a source of embarrassment, social media has been flooded with responses to this viral post.
Responding to the video, one commenter wrote: 'This is how I found out there is a calculator history. Nobody needs to see that, thank you'.
'1x10.. it was a difficult day,' added another.
While one mortified commenter wrote: 'As a math major, having 100x2 in my calculator history is just embarrassing.'
Nor was this the only post complaining about how revealing the history feature could be.
One TikTok user posted a video of themselves with text reading: 'The only thing more embarrassing than my browser history... my calculator history.'
Another user shared a video of their calculator's history, featuring some extremely basic calculations.
In the video the user showed that they had used the app to work out '60÷2', '12÷3', and even '1+1'.
The user wrote: 'The new iPhone update exposing us with our calculator history.'
Luckily, if you're curious about your own calculator history or would rather delete it permanently the function is very easy to access.
On your iPhone, simply open up the calculator app and look for the menu button in the top left-hand corner of the screen.
Tapping this will bring you to the history screen where you will see your calculations broken down into 'Today', 'Previous 7 Days', and 'Previous 30 Days'.
If you want to pick up the calculation where you left off, simply tap on the listing to reload the expression.
To add the listing to your clipboard, tap and hold the sum and select either 'Copy the answer' to just select the result or 'Copy expression' to select the entire sum.
Finally, if you'd like to remove the calculation, touch and hold the listing and then select 'Delete'.
If you want to delete more than calculation at once, tap on 'Edit' at the top right corner of the main history menu.
You can then tap the sums you want to delete to select them before pressing 'Delete All' at the bottom of the screen.
Any calculations will also automatically be deleted after 30 days, so there is no need to rush if you are concerned about hiding your calculator habits.
Apple Intelligence: The best features
Apple Intelligence is essentially a snazzy brand name for Apple's new-found focus on AI, triggered by the huge success of the ChatGPT.
Here's a look at some of the best features of Apple Intelligence, which comes to the UK via the new iOS 18.2 operating system.
ChatGPT-Siri integration
Surely the biggest part of Apple Intelligence is the integration of OpenAI's hugely popular chatbot ChatGPT with Siri, Apple's in-built virtual assistant.
With better 'language-understanding capabilities' enabled by ChatGPT, Siri will help you across multiple apps and 'accelerate everyday tasks', Apple said.
You'll be able to press and hold the side button to activate Siri as normal, but with ChatGPT behind it Siri will be able to 'answer thousands of questions about how to do something' that it couldn't before.
For example, you could say, 'Play that podcast that Jamie recommended' and Siri will locate and play the episode, without the user having to remember whether it was mentioned in a text or an email.
Or you could ask, 'When is mum's flight landing?' and Siri will find the flight details and cross-reference them with real-time flight tracking to give an arrival time.
AI-generated emoji
If you can never quite find the emoji you're looking for during chat conversations, Apple has the answer.
One of the more fun parts of Apple Intelligence is AI-generated emoji, which Apple has called 'Genmoji' (a mix of 'generated' and 'emoji').
In the Messages app, you can type a short description of the emoji you want – such as 'smiley relaxing wearing cucumbers' or 'squirrel DJ'.
Similar to AI tools that just need a few words to create weird artworks, from that single prompt Genmoji returns an AI-generated approximation of what you had in mind.
If you don't like what the AI has made for you, there are a few back-up options for you to choose from.
Clean Up
Apple's Clean Up tool for the Photos app makes ultra-clean edits to photos – without any telltale signs that the snap has been tampered with in any way.
It lets users remove 'distracting objects' from the background of a photo – for example a photobomber in the background of a family snap.
Clean Up is very similar to Google's photo-editing technology 'Magic Eraser' for its Pixel phones, heavily promoted in Google adverts in recent years.
But the technology has been described by some as 'Orwellian' as it can distort reality and 'create a false memory'.
Referring to Clean Up, one commenter said it 'can be misused' because it 'makes deleting evidence easy'.
Image Playground
AI also powers a new image-generating tool called 'Image Playground', which is available on multiple apps, including Messages and Pages.
With Image Playground, users can create images in a few seconds, choosing from three styles – 'animation', 'illustration' and 'sketch'.
A promo image appears to show a photo of a person being turned into a video game-style 3D avatar wearing a spacesuit in the 'animation' setting.
Rather like Genmoji, this 'exciting' image creation tool will help iPhone owners 'communicate and express themselves in new ways', the company says.
Movie Memories
The vast media storage capabilities of an iPhone means its always tempting to look back through your photos and video for a burst of nostalgia.
Recognizing this, Apple has come up with 'Movie Memories', an AI tool that creates the perfect home movie to watch on your device.
By typing a short description – for example 'last summer in our garden' – the AI can search your media library and and arrange photos and clips into a movie 'with its own narrative arc'.
And as no movie is quite as good without a bit of music, you'll get song suggestions from Apple Music to match the memory.
Again, Apple stresses the privacy aspect of using an AI to search through your private life.
'As with all Apple Intelligence features, user photos and videos are kept private on device and are not shared with Apple or anyone else,' it says.
AI writing tools
Using AI to make your writing extra concise is not a new thing – for example Microsoft's Copilot AI is creating first drafts and suggesting edits in Word.
But now Apple is jumping on the bandwagon with its own AI-powered writing tools.
The tech will rewrite, proofread and summarize text on multiple apps, including Mail, Notes and Pages, as well as some third-party apps.
'Whether tidying up class notes, ensuring a blog post reads just right, or making sure an email is perfectly crafted, Writing Tools help users feel more confident in their writing,' the firm says.
