How To Turn your Phone into GrayScale

iPhone (iOS)

Method 1: Accessibility Shortcut

1. Go to Settings > Accessibility > Display & Text Size > Color Filters
2. Toggle Color Filters on
3. Select Grayscale

Method 2: Quick Access

1. Go to Settings > Accessibility > Accessibility Shortcut
2. Select Color Filters
3. Now triple-click the side button to toggle grayscale on/off

Android

Samsung Galaxy

1. Go to Settings > Accessibility > Visibility enhancements
2. Toggle Grayscale on

Google Pixel/Stock Android

1. Go to Settings > Digital Wellbeing & parental controls
2. Tap Bedtime mode or Focus mode
3. Enable Grayscale

Alternative Method (Most Android phones)

1. Enable Developer Options (tap Build Number 7 times in About Phone)
2. Go to Settings > Developer Options
3. Find Simulate color space and select Monochromacy