Installation Guide

Getting Fetchii up and running takes less than a minute. This guide covers everything from downloading the app to making your first video download.

Before You Start

Fetchii requires macOS 14.6 or later, running on any Mac with Apple Silicon or Intel processor. You'll need about 150 MB of free space for the app itself, plus whatever room you want for your downloaded videos.

Installing Fetchii

Download the DMG file from the official Fetchii website. Once downloaded, double-click to open it and drag the Fetchii icon to your Applications folder. That's the whole installation — you can now eject the DMG.

Your First Launch

About Gatekeeper

Fetchii isn't distributed through the Mac App Store, but it is signed and notarized by Apple. The first time you open it, macOS asks whether you're sure you want to open an app downloaded from the internet — click Open.

If macOS still refuses to open Fetchii, here's how to approve it:

Open System Settings and go to Privacy & Security
Scroll down and you'll see a message about Fetchii being blocked
Click Open Anyway and enter your password when prompted

After this one-time approval, Fetchii will open normally every time.

Welcome and Free Trial

On first launch, Fetchii shows a short welcome. Click Start Free Trial to try every feature free for 14 days — no card and no account needed. Already bought Fetchii? Click I already have a license key, paste the key from your purchase email and click Activate License. You can also activate later in Settings → License.

Along the way you can choose whether to send anonymous analytics and crash reports, and set up the browser extension.

Setting Up the Engine

On first launch, Fetchii downloads a small component called the download engine. This is what powers all the actual video downloading. A notice under the toolbar shows its progress while this happens — it usually takes 30-60 seconds depending on your connection. Meanwhile you can set up the browser extension and settings; downloads start automatically when it finishes.

If the setup fails for any reason, the notice shows Setup Failed — click Retry to try again.

Note: The download engine is essential — Fetchii can't download videos without it. If you're having trouble, check your internet connection or firewall settings.

Making Sure Everything Works

Want to verify your installation? Open Fetchii from your Applications folder and check that the main window appears without errors. Then paste any video URL into the link field at the top of the window and press Return to test that downloads work correctly.

Removing Fetchii

If you ever need to uninstall, just quit the app and drag it from Applications to Trash.

To completely remove all app data, you can also delete these folders:

~/Library/Application Support/Fetchii/
~/Library/Caches/Fetchii/
~/Library/Preferences/com.entromoonic.Fetchii.plist

Caution: These folders contain your download history, saved cookies, and preferences. Make sure you really want to remove everything before deleting. Use Finder's "Go to Folder" (Cmd + Shift + G) to access these locations.

Fetchii also stores license and cookie encryption keys in your Mac's Keychain under com.entromoonic.Fetchii. These are small and safe to leave, but can be removed via Keychain Access if desired.

Next Steps

Ready to download your first video? Head over to Your First Download to learn the basics.