Open the Arsenal from its icon on your home screen or desktop, in its own window. Your account and presets stay the same.
An internet connection is required to refresh the data and use the calculation tools.
On iPhone or iPad: open this page in Safari, tap Share, then choose “Add to Home Screen” from the list. If “Open as Web App” is offered, turn it on.
On Android or a computer: open the Chrome or Edge menu and choose “Install app” (depending on the browser, the option may be called “Add to Home screen” instead). If it doesn’t appear, you can keep using the Arsenal here.
Installation is temporarily unavailable. Check your connection and try again.