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John’s Background Switcher
What it is
John’s Background Switcher periodically changes a Windows or Mac desktop background, using individual photos or assembled montages and collages. It draws from local photos and services including Flickr, SmugMug, Unsplash, Pixabay, Dropbox, OneDrive, Vladstudio, Immich, and Media RSS feeds; available sources vary by platform. Windows also lists Pexels, Last.fm, and Wallhaven. On Mac, it can use multiple monitors, show the same or different pictures on each, or use only one monitor. Mac users can choose intervals from every 10 seconds to 7 days and apply grayscale, sepia, or desaturation effects. Windows support starts at Windows 10 and uses Microsoft .NET 4.8, which the setup wizard can install if needed. The Windows edition includes a system tray interface, documentation, a cached photo browser, and an uninstaller. The maker says settings and authentication tokens are stored locally, services are contacted directly, and photo results are cached for no more than two days. Windows is free; Mac costs $7.99 once direct or $8.99 once through the Mac App Store.
For and against
For
- Uses local photos and multiple online sources.
- Creates montages and collages as well as single-photo backgrounds.
- Mac version supports multiple monitors and configurable intervals.
- Windows edition includes a cached photo browser.
- Maker says settings and authentication tokens stay local.
Against
- Windows support requires Windows 10 or above.
- Windows version uses Microsoft .NET 4.8.
- Mac direct purchase costs $7.99 once.
- Mac App Store version costs $8.99 once.
The verdict
John’s Background Switcher offers photo rotation, montages, and platform-specific options for Windows and Mac desktops. Windows has a free plan, while the Mac versions are one-time purchases.
Who it suits
It suits Windows or Mac users who want desktop photos to rotate automatically, including Mac users with multiple monitors. Windows is free; Mac users can choose a direct purchase or the App Store edition.
Plans and prices
Windows
Windows 10 and above · optional support license lets you choose how much to pay
Read 5 Oct 2026 · johnsad.ventures
Mac direct
macOS 12.0 and above
Read 5 Oct 2026 · johnsad.ventures
Mac App Store
macOS 12.0 and above
Read 5 Oct 2026 · johnsad.ventures
On the record
- Data sent to maker
- The privacy policy says update checks send the user's IP address, retained in server logs for no longer than 30 days, and crash reports contain a call stack and operating system version without personally identifiable information.johnsad.ventures · read 5 Oct 2026
- Image sources
- Supported sources include local photos and services such as Flickr, SmugMug, Unsplash, Pixabay, Dropbox, OneDrive, Vladstudio, Immich, and Media RSS feeds, with availability varying by platform.johnsad.ventures · read 5 Oct 2026
- Languages
- The Windows version lists English, French, German, Spanish, Italian, Dutch, Ukrainian, Swedish, Brazilian Portuguese, Japanese, Russian, Finnish, Hungarian, and Simplified and Traditional Chinese.johnsad.ventures · read 5 Oct 2026
- Maker
- The maker identifies himself as John Conners, a software developer who lives in Yorkshire and originally lived in Fife, Scotland.johnsad.ventures · read 5 Oct 2026
- Monitor support
- The Mac version supports multiple monitors and can show the same or different pictures on each monitor, or use only one monitor.johnsad.ventures · read 5 Oct 2026
- Montages
- The app can display single photos or generate montages and collages for the desktop.johnsad.ventures · read 5 Oct 2026
- Origin
- John Conners says he wrote the original PC background changer in 2004 and released it for free.johnsad.ventures · read 5 Oct 2026
- Privacy
- The maker says JBS stores settings and authentication tokens locally, contacts photo services directly, and caches photo results locally for no longer than two days.johnsad.ventures · read 5 Oct 2026
- Purpose
- The app periodically changes a Windows or Mac desktop background to photos or photo montages.johnsad.ventures · read 5 Oct 2026
- Support
- The maker offers a support request form and directs Windows users to check the FAQ first; replies may take a while because the maker receives many emails.johnsad.ventures · read 5 Oct 2026
- Timing and effects
- The Mac version supports switching intervals from every 10 seconds to 7 days and effects including grayscale, sepia, and desaturation.johnsad.ventures · read 5 Oct 2026
- Windows extras
- The Windows version includes a system tray interface, full documentation, a cached photo browser, and an uninstaller that the maker says removes every trace of the app.johnsad.ventures · read 5 Oct 2026
- Windows integrations
- The Windows version also lists Pexels, Last.fm, and Wallhaven as photo sources.johnsad.ventures · read 5 Oct 2026
- Windows requirements
- The Windows version works on Windows 10 and above and uses Microsoft .NET 4.8, which its setup wizard can install if needed.johnsad.ventures · read 5 Oct 2026
