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Pros
Pro You can print your code directly from the app
Pro Option to customize your codes
You can make codes with smooth rounded corners, beautiful two-tone gradients, a background color, or one with a logo in the middle.
Pro Available in Mac app store or traditional app package
Some people prefer one or the other, it's nice to have the option.
Pro Supports several different types of codes
It supports URL, email, phone, SEPA (Single Euro Payments Area) payments among others.
Pro Single purchase
No subscription.
Cons
Con Static links
You cannot change the destination of a QR Code generated by this app because it is not connected to a webapp/service. A workaround to this is to use a URL shortener service or similar where you can edit the destination URL after the fact.