App Tracker for iOS

Open in AltStore

Download AltStore. Use the link for your operating system.
Unzip and move AltStore to your Applications folder.
Launch the AltStore application.
Click on the AltStore icon in the Menu Bar, and then click on the Install Mail Plug-in option.
Open the Mail app, and click on Mail → Preferences in the menu bar.
Open the General tab in mail preferences, click Manage Plug-ins, check AltPlugin, and apply and restart Mail.
Connect your iOS device via USB.
Click AltStore in the menu bar, then go to Install AltStore → (Your iOS Device)
Login with your Apple ID when prompted and click install.
On your iOS device, open Settings → General → Device Management and tap on your Apple ID.
Trust AltStore.
Tap the "Open in AltStore" button located above.
AltStore will now install the app. Wait until it finishes.
Open App Tracker and enjoy!

Install iTunes (Win32 Not UWP)
- 64 Bit Download
- 32 Bit Download
Download AltStore Use the link for your operating system.
Right click the zip you just downloaded and click "Extract All" Wait until this finishes.
Double click "Setup.exe" and follow the on screen instructions provided by AltStore.
Press the Windows key, type "AltServer" and open the application.
Click the arrow icon near the network icon in the taskbar. This will bring up an menu with multiple icons. Look for a diamond shaped logo that says AltServer when mousing over it. Click on it.
From the option brought up, hover over Install AltStore, and select your iOS device.
Enter your Apple ID and password when prompted.
On your iOS device, open Settings → General → Device Management and tap on your Apple ID.
Trust AltStore.
Tap the "Open in AltStore" button located above.
If promoted, sign into the same Apple ID you used before.
AltStore will now install the app. Wait until it finishes.
Open App Tracker and enjoy!

App Tracker for macOS

Install via Homebrew

brew tap bigwig-club/brew
brew install bigwig-club/brew/app-tracker --cask