Automate

A different wallpaper every morning, without an app.

Collect the wallpapers you want, export them into a Photos album, and let Shortcuts pick one at random on a schedule. It takes about five minutes to set up and then never needs touching again.

Read this first: nothing here can be automatic

iOS has no public API that lets a third-party app set your wallpaper. There is no permission to ask for and no entitlement to apply for; the capability simply is not exposed, and any app claiming otherwise is either handing you a file to set manually or is not doing what it says. The sanctioned route is Shortcuts, which is Apple’s own automation app, and which does have a wallpaper action. So PatternWall gives you the files and Shortcuts does the setting. That is the whole trick, and it is a real limitation rather than a design choice.

How the instructions below were checked

Apple moves labels around between iOS releases, so these steps were written against Apple’s own Shortcuts User Guide rather than from memory. An important caveat: the machine this page was written on could not open support.apple.com directly — outbound requests to it are blocked by a network policy — so the guide was consulted through search results that quote it, not by reading the pages in full.

Where a label below is in bold, it appears in Apple’s documentation as quoted in those results. Where a label is marked (check the label on your device), it comes from the community rather than from Apple, and the wording may differ on your iOS version. Nothing here is invented; a couple of things are simply less certain than the rest, and are marked as such.

Shortcuts User Guide — Create a new personal automation, Intro to personal automation, Event triggers, Enable or disable a personal automation
Shortcuts User Guide — Intro to Find and Filter actions, Add filter parameters to Find and Filter actions
Apple Support — What’s new in Shortcuts, which names the Set Wallpaper Photo action

1. Collect the ones you want

Open a pattern, get it to a configuration you like, and press Collect. Do that as many times as you like — different patterns, different palettes, different seeds. Everything you collect is listed on the Collected page.

Then, from that page, use Export all as a zip. Every configuration is rendered at one size and zipped together, each file keeping its own pattern, seed and palette. Open Export settings first to pick your device from the preset list so the files come out at your panel’s pixel size, and leave the 8% bleed switched on so iOS’s parallax zoom never finds an unpainted edge.

How many you collect is up to you, and it is the whole point of doing it this way: the album is a set you chose rather than a sweep of random seeds. Twenty or thirty is enough that you will not notice the loop inside a month.

Choose a pattern

2. Get them into an album

Unzip the archive. On a Mac, AirDrop the folder of PNGs to your iPhone and choose to save them to Photos; from iCloud Drive or Files on the phone itself, select them all and use Save Images.
In Photos, select the imported images, then add them to a New Album and call it PatternWall. The name matters only in that the shortcut has to point at the same one.
Keep the album to just these images. The shortcut picks at random from whatever is in it, so a stray screenshot becomes a wallpaper eventually.

3. Build the shortcut

In the Shortcuts app, on the Shortcuts tab, create a new shortcut and add three actions in this order. Search the action list by name; every one of these is built in and needs no third-party app.

1 Find Photos
   where Album is PatternWall
   Sort by Random
   Limit 1 photo

2 Set Wallpaper Photo
   to the Photos output of step 1

About the filter row

Apple’s guide describes Find and Filter actions as arriving with a default filter string — its example is “Album is All Photos” — and says you tap any term in that string to change it. So tap All Photos and choose your PatternWall album. The same guide describes tapping Sort by, choosing from the list, and then setting the Order parameter that appears; choose Random, which needs no order. Finally set the limit to one photo, so the action hands a single image to the next step rather than the whole album.

About the wallpaper action

The action is called Set Wallpaper Photo. Apple’s “What’s new in Shortcuts” note describes it as setting photos for wallpapers using the current Lock Screen customisation model, and it can target the Lock Screen, the Home Screen, or both.

Expand the action to see its options. Community write-ups consistently report three toggles worth turning off — Show Preview (check the label on your device), Crop to Subject (check the label on your device) and Legibility Blur (check the label on your device). A preview step turns an automation that was supposed to be silent into one that asks you to confirm every morning. Subject cropping will happily zoom into the middle of a pattern that was composed for the whole screen. And the legibility blur is the Home Screen softening iOS applies to help icon labels stand out — useful over a photograph, but it turns fine line work into mud, which is the entire reason the Home Screen variant in the Export tab raises contrast instead. None of these three labels could be confirmed against Apple’s own documentation from here, so look at what your version actually says.

Name the shortcut something you will recognise in a list — PatternWall Morning — and run it once from the Shortcuts app to check it does what you expect before you put it on a timer.

4. Put it on a schedule

Apple’s guide describes personal automation as a way to run actions based on events such as time of day. Create one from the Automation tab:

Go to the Automation tab and start a new personal automation.
Choose the Time of Day trigger. Apple’s event-triggers page describes it as triggering at a specific time, with a choice of which day or days it runs on. Pick a time you are reliably asleep or at least not looking at the screen, and set it to repeat daily.
Choose the PatternWall Morning shortcut as the thing to run.
Turn off Ask Before Running, then tap Don’t Ask to confirm. This is the exact wording in Apple’s “Enable or disable a personal automation” page, and it is what makes the automation run silently instead of sending you a notification to approve every morning. The same page notes that once this is off, the automation will not notify you when it is triggered.

If it does not work

It asks for confirmation every day. Either Ask Before Running is still on for the automation, or the wallpaper action is still showing its preview step. Both have to be off.
The wallpaper is zoomed in. Subject cropping is on, or the exported file is not the same aspect ratio as your screen. Re-export with your device selected from the preset list.
An edge shows when you tilt the phone. The bleed was off. Export again with the 8% bleed switch on, which renders the image larger than the screen on every side specifically to give the parallax somewhere to go.
It sets the same image repeatedly. The sort is not set to Random, or the limit is not 1 and something downstream is taking the first result.
Nothing happens at the scheduled time. Personal automations do not run while the phone is powered off, and a Time of Day automation that falls during a period when the device is off will not retroactively fire. Try a time when the phone is on and charging.

A note on honesty

This page is the least glamorous part of PatternWall and the most important one. A generative wallpaper studio that quietly implied it could change your wallpaper for you would be lying, and a studio that ignored the question entirely would be leaving you with a folder of PNGs and no idea what to do with them. Shortcuts is a genuinely good answer — it is Apple’s own automation surface, it is on every phone, and once it is set up it is invisible. It just is not something an app can do on your behalf.