iOS 18 quietly delivered the biggest lock screen overhaul since iOS 16 introduced the photo-stack widgets, and most of the genuinely useful changes are hidden behind submenus that the default Apple support pages don’t talk about. The two corner shortcuts — flashlight and camera by default — can now be replaced with anything you want from a long list of system actions and third-party app intents. The Control Center got modular controls. Lock screen widgets gained a layout pass that lets you fit more in the same vertical space. This article walks through the changes I think are actually worth knowing about, in the order you should set them up on a fresh phone or after an update.
Replacing the corner shortcuts
For years, the bottom-left corner of the iPhone lock screen was hardcoded to the flashlight and the bottom-right was hardcoded to the camera. iOS 18 changes both. To customize them: long-press anywhere on the lock screen until the customize button appears, tap Customize, choose Lock Screen, then tap each corner shortcut. You’ll see a picker with system controls (flashlight, camera, calculator, magnifier, voice memo, scan code, shazam, sound recognition, accessibility shortcuts) and any third-party app controls that have been registered through the new Controls API.
Some of the third-party controls that I’ve found genuinely useful: Bear (open new note), Drafts (new draft from clipboard), Authy/2FAS (open code list), Things 3 (quick add task), Halide (open camera with manual controls), Carrot Weather (current radar). The full list depends on which apps you have installed and which have shipped Controls API support, which has been gradual through 2025 — the top tier of indie productivity apps had it within a month of iOS 18 release, the bigger consumer apps took longer.
One thing the menu doesn’t make obvious: you can also set None for either corner. If you keep accidentally triggering the flashlight in your pocket, removing the corner shortcut entirely is the cleanest fix. The corner becomes a non-interactive area and your face wakes you up like normal.
The new Control Center is modular
The Control Center (swipe down from the top right corner on Face ID iPhones, or up from the bottom on Touch ID models) used to be a fixed grid of system tiles that Apple chose. iOS 18 turns it into a multi-page editable surface. Long-press anywhere in the Control Center and you get an Add Control button at the bottom. The picker shows the same Controls API list as the lock screen corner shortcuts, plus the legacy system tiles.
Three things that are easy to miss in the new Control Center:
- Multi-page layout. If you add more controls than fit on one page, the Control Center becomes a paged surface — swipe up or down to move between pages. I have my media controls on page one, smart home on page two, and “everything else” on page three.
- Resizable tiles. Each control has a corner handle in edit mode that lets you resize it from 1×1 up to 4×2. The bigger sizes show extra info (the calculator goes from a launcher to an inline calculator at 2×2, for example).
- Power button reassignment. The power button at the top right of the Control Center can now be remapped to a custom action. By default it’s still the actual power-off slider but you can change it to airplane mode toggle, focus toggle, or any registered app intent.
The downside of the new Control Center: it’s easy to make a mess. I started with twenty controls and ended up with six because the rest were noise. Fewer is better.
Lock screen widgets got smarter
The widget rows on the lock screen — the small squares above and below the clock — already existed in iOS 16, but iOS 18 changed how they’re laid out. The bottom row, in particular, can now hold up to four small widgets instead of three, and the widget picker is smarter about which apps offer lock screen widgets so you don’t have to scroll past every single app you’ve ever installed.
The widgets I’ve actually kept long-term:
- Calendar (next event) — showing the next event start time at a glance.
- Weather (current temp + UV index) — the small variant fits in the date row above the clock.
- Carrot Weather (radar mini) — a third-party tile that shows a tiny radar map. More glanceable than any system option.
- Battery (HomePod or AirPods) — only useful if you have those devices, but glanceable battery for accessories you actually care about.
- Activity (today’s rings) — the small ring widget is more readable than the larger one.
What I removed: stocks (too noisy on a quiet day, useless on a busy one), reminders (better as a notification), and the news widget (a constant rotating distraction).
The wallpaper picker has a new mode
Three things in the wallpaper picker most people never find: photo filters, depth effect toggles per-wallpaper, and the new Photo Shuffle scheduling.
Photo filters let you apply a tinted overlay to any photo wallpaper so it doesn’t fight your widget colors. The presets are subtle — fade, mono, duotone, color wash — and they work better than the old contrast slider for making the time and widgets readable on busy backgrounds. Tap a wallpaper in edit mode and swipe horizontally on the photo to cycle through filters.
Depth effect is the trick where the lock screen clock slides behind the foreground subject of your wallpaper. iOS 16 added it, but iOS 18 lets you toggle it on or off per-wallpaper instead of as a global setting, and the foreground detection is dramatically better. On Pixel-quality portrait photos it now works correctly maybe 90% of the time.
Photo Shuffle scheduling lets you say things like “shuffle these 30 photos every hour” or “shuffle on lock” or “shuffle daily”. The control is in the photo shuffle wallpaper edit screen, near the bottom — a setting most people never scroll to. If you set up a curated photo shuffle and let it run for a week, the home screen feels alive in a way the static wallpaper never did.
Tinted icons and the dark mode home screen
Not strictly a lock screen feature but related: iOS 18 added the ability to apply a global tint to home screen icons. Long-press the home screen, tap Edit, choose Customize, and you’ll see Light, Dark, Automatic, and Tinted modes. Tinted mode applies a single color to every app icon — pick a color from the slider or use the eyedropper to sample a color from your wallpaper. The result is a more cohesive home screen at the cost of icon recognizability.
I’ve gone back and forth on this. After a week of tinted mode I went back to default icons because the muscle memory for which icon is which depends on color. Some people love it. Worth trying for a day to find out which side you’re on.
Focus modes interact with the lock screen now
Each Focus mode (Do Not Disturb, Sleep, Personal, Work, etc.) can now have its own lock screen attached to it. Set up a Sleep focus and pair it with a minimal black wallpaper that hides notifications; set up a Work focus and pair it with a calendar-heavy lock screen that shows your next meeting and email count. When the focus activates, the lock screen swaps automatically.
The setup lives in Settings → Focus → (your focus) → Customize Screens → Lock Screen. You can either pick an existing lock screen from your collection or create a new one specifically for that focus. The transition is fast enough that you barely notice it happening, but the right lock screen for the right context makes the phone feel less noisy.
Third-party widgets are finally good
The big change in iOS 18 isn’t a system feature — it’s that the lock screen widget API matured to the point where third-party developers can do what Apple has been doing with first-party widgets. The interactive widgets API lets a tile respond to a tap without launching the app, which makes things like “toggle a smart home device from the lock screen” actually work for the first time. Home Assistant, Hubitat, and SmartThings have all shipped lock screen widgets that genuinely control things rather than just showing state.
Other categories where third-party lock screen widgets have improved noticeably: 2FA code launchers, password manager unlock prompts, quick translation, and any productivity app that has a “capture this thought” workflow. The friction of unlocking the phone, finding the app, opening it, and starting the action is gone for any of those workflows now.
iOS 18’s lock screen and Control Center overhaul is the biggest user-facing change in the OS, and almost none of it is on by default in any meaningful way — you have to go into the customize screens and pick what you want. Spend ten minutes after the update doing it and the phone feels measurably more useful. The corner shortcuts alone are worth the trip; replacing the camera and flashlight with the two actions you actually use most often saves a tap on every single phone unlock.
