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SPECIFICTION
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John’s Background Switcher

johnsad.ventures

Free plan WindowsmacOS
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Spec score 8.1 #9 of 34 in Desktop Wallpaper Software

What it is

John’s Background Switcher changes a Windows or Mac desktop background on a schedule, using individual photos or assembled montages and collages. Its image sources include local photos and services such as Flickr, SmugMug, Unsplash, Pixabay, Dropbox, OneDrive, Vladstudio, Immich, and Media RSS feeds, though availability varies by platform. Windows also lists Pexels, Last.fm, and Wallhaven. On Mac, it can manage multiple monitors, showing the same or different images on each, or using a single monitor. Mac switching intervals range from every 10 seconds to 7 days, with grayscale, sepia, and desaturation effects. Windows support starts at Windows 10 and requires Microsoft.NET 4.8; the setup wizard can install that dependency. The maker says settings and authentication tokens are stored locally, photo services are contacted directly, and cached photo results are kept for no more than two days. Windows is free at free. Mac direct costs 7.99 USD once, and Mac App Store costs 8.99 USD once.

Spec sheet

Purpose
The app periodically changes a Windows or Mac desktop background to photos or photo montages.Read 5 Oct 2026 · johnsad.ventures
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.Read 5 Oct 2026 · johnsad.ventures
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.Read 5 Oct 2026 · johnsad.ventures
Maker
The maker identifies himself as John Conners, a software developer who lives in Yorkshire and originally lived in Fife, Scotland.Read 5 Oct 2026 · johnsad.ventures
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.Read 5 Oct 2026 · johnsad.ventures
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.Read 5 Oct 2026 · johnsad.ventures
Languages
The Windows version lists English, French, German, Spanish, Italian, Dutch, Ukrainian, Swedish, Brazilian Portuguese, Japanese, Russian, Finnish, Hungarian, and Simplified and Traditional Chinese.Read 5 Oct 2026 · johnsad.ventures
Monitor support
The Mac version supports multiple monitors and can show the same or different pictures on each monitor, or use only one monitor.Read 5 Oct 2026 · johnsad.ventures
Montages
The app can display single photos or generate montages and collages for the desktop.Read 5 Oct 2026 · johnsad.ventures
Origin
John Conners says he wrote the original PC background changer in 2004 and released it for free.Read 5 Oct 2026 · johnsad.ventures
Timing and effects
The Mac version supports switching intervals from every 10 seconds to 7 days and effects including grayscale, sepia, and desaturation.Read 5 Oct 2026 · johnsad.ventures
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.Read 5 Oct 2026 · johnsad.ventures
Windows integrations
The Windows version also lists Pexels, Last.fm, and Wallhaven as photo sources.Read 5 Oct 2026 · johnsad.ventures
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.Read 5 Oct 2026 · johnsad.ventures

Plans and prices

Windows Free Windows 10 and above · optional support license lets you choose how much to pay Read 5 Oct 2026 · johnsad.ventures
Mac direct $7.99, paid once macOS 12.0 and above Read 5 Oct 2026 · johnsad.ventures
Mac App Store $8.99, paid once macOS 12.0 and above Read 5 Oct 2026 · johnsad.ventures

Every John’s Background Switcher plan and price →

Strong points and limits

Strong points

  • Uses local photos and listed online sources
  • Can create montages and collages
  • Mac version supports multiple monitors
  • Mac intervals range from 10 seconds to 7 days
  • Windows version is free

Limits

  • Source availability varies by platform
  • Windows requires Windows 10 or above
  • Windows requires Microsoft .NET 4.8
  • Mac App Store version costs 8.99 USD once

Who it suits

It suits Windows or Mac users who want desktop backgrounds to rotate from local photos or supported online sources. Mac users with multiple monitors can choose how images appear across them.

Verdict

John’s Background Switcher offers scheduled background changes on Windows and Mac, with platform-specific sources and controls. Windows is free, while Mac editions have one-time prices.

Where Specifiction places it

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