Mailmeteor - Send hundreds of personalized emails with Gmail.

Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.

GMass - GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!

Felt for iPhone - Handwritten cards for the modern world

Interseller - Interseller helps find contact information, reach out to them with email automation and syncs it all into your database.

Inkpact - Send genuine handwritten messages in just a few clicks