[jonwinstanley]

Balsamiq is a per month subscrtiption isn't it? Personally, I need a tool like this once per year or sometimes even less. So if Konty was a one off payment of $20-30 I'd be more inclined to purchase.

[quantisan]

Balsamiq offers a desktop version with a one-time license fee at $149 per user https://balsamiq.com/wireframes/desktop/

[MrDresden]

Sadly only MacOS/Windows.