The best greeting card app for sending cards that look like they were personally handwritten is Handwrytten, which checks all the boxes with just enough bells and whistles to get the job done. Its sleek interface makes it easy to sort through pre-made card designs, and users can upload their own branded design. Handwrytten also offers an AI-powered writing assistant that writes messages for you, custom handwriting fonts, real-time message preview, and integration with Zapier. While it may have some drawbacks, such as the need to use its provided template to upload multiple contacts at once, Handwrytten is a top pick overall due to its convenience, ease of use, and customization options.