How to Set Screen Time Limits on iPhone
A step-by-step guide to iPhone Screen Time: app limits, Downtime, Always Allowed, a Screen Time passcode and the settings that make limits actually stick.
Does Grayscale Mode Reduce Phone Use?
Does turning your phone grayscale really cut screen time? What small studies found, why colour matters, how to set it up on iPhone and Android, and its limits.
Key takeaways
- Bright colours and red badges help apps grab attention; grayscale takes some of that pull away.
- Small studies suggest grayscale can modestly reduce screen time; effects on wellbeing are less clear.
- It’s free, reversible and quick to test, so it’s worth a two-week trial alongside other changes.
On this page
Turning your phone black and white sounds like a gimmick. But it’s one of the most popular tips in digital wellbeing circles, and there’s some evidence behind it. Here’s what it does, what the research found and how to try it.
Why colour matters
App designers use colour deliberately. Bright icons stand out on the home screen, red notification badges signal urgency, and vivid photos and videos make feeds more rewarding to scroll. Grayscale doesn’t change what an app does, but it makes everything look a little flatter and less appealing.
What the research says
The evidence is small but consistent. In one study published in The Social Science Journal, college students who switched their phones to grayscale used them noticeably less than before. Other small experiments have found similar drops in screen time, with less consistent effects on mood and wellbeing.
That fits what users report: grayscale reduces the pull of mindless browsing, but doesn’t fix the habit on its own. Think of it as friction, like moving apps off the home screen, rather than a cure.
How to turn on grayscale
iPhone
Go to Settings > Accessibility > Display & Text Size > Colour Filters, turn on Colour Filters and choose Grayscale. For quick switching, set Settings > Accessibility > Accessibility Shortcut to Colour Filters, then triple-click the side button to toggle it. You can also schedule it with an automation in the Shortcuts app.
Android
The easiest route is Bedtime mode in Digital Wellbeing, which can turn the screen grayscale on a schedule. For all-day grayscale, many phones have an option under Settings > Accessibility, often called colour correction; the exact menu varies by manufacturer.
Pros and cons
| Pros | Cons |
|---|---|
| Free and reversible in seconds | Photos, maps and videos look worse |
| Makes feeds and games less appealing | The habit can persist in grayscale |
| Works with any app | Easy to switch off when tempted |
| Can be scheduled for evenings | Some notifications rely on colour cues |
Getting the most from it
- Try it for two weeks and compare your screen time report before and after.
- Keep a quick toggle for when you need colour, such as checking a map or a photo.
- Schedule it for evenings, when scrolling is most automatic and sleep is at stake.
- Combine it with other friction. Grayscale works best alongside app limits: see Screen Time on iPhone or Digital Wellbeing on Android.
If video apps are your main problem, grayscale can help a little, but a firmer plan works better. Here’s how to quit short-form video.
Frequently asked questions
Does grayscale reduce eye strain or improve sleep?
There’s no good evidence either way. Its main benefit is making your phone less appealing, which can lead to less late-night use.
Will grayscale affect screenshots or photos I take?
No. Colour filters only change how your screen looks. Photos and screenshots are saved in full colour.
How long does it take to work?
Some people notice they pick up their phone less within days. Give it two weeks before judging, and check your screen time numbers rather than relying on memory.
Sources
Every article is edited by a human and checked against our editorial policy. Spotted a mistake? Tell us.
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