Foldesk support
Connect to a Mac
On the Mac, open System Settings → General → Sharing and turn on Screen Sharing. In Foldesk, the Mac appears under Nearby; sign in with your Mac account name and password.
Connect to Windows or Linux
Install a VNC server (TightVNC is free and works well on Windows; UltraVNC also works; TigerVNC or x11vnc on Linux) and set a VNC password. Allow port 5900 through the firewall, then add the computer's IP address in Foldesk.
Use it away from home
Install Foldesk for Mac on the Mac you want to reach and open it. Click Pair iPhone, keep "Reach this Mac when I'm away from home" switched on, and scan the code with Foldesk on your iPhone. From then on the same card works at home and away. Foldesk must be open on the Mac and the Mac must be awake; switch on "Open Foldesk when I log in" so it comes back after a restart. Access from anywhere is part of Foldesk Pro.
If it says the computer isn't reachable, check that Foldesk is open on that Mac. A VPN such as Tailscale also works: connect to the computer's 100.x address. Never open port 5900 to the internet.
Use Foldesk on a Mac
Foldesk for Mac opens each computer in its own window. Your Mac's trackpad, mouse and keyboard work as usual. Click Take Control to send every gesture and shortcut to the remote computer; press ⌃⌥Esc to come back. One Foldesk Pro purchase unlocks iPhone and Mac.
Typing: swipe and dictation
On the on-screen keyboard, glide across letters to type a word. Tap the microphone, speak and pause to type a sentence; Send also presses Return.
Laptop mode on iPhone Duo
Half-fold the phone with the hinge running across the screen. If it doesn't switch, tap the laptop button in the session bar, or choose Settings → Laptop layout → Always.
Purchases
Restore a purchase from Settings → Restore Purchases. Manage or cancel a subscription in iOS Settings → Apple Account → Subscriptions.