SendLeap is described as '(formerly Textto) lets you send and receive SMS, picture, and group messages all from your computer!' and is an app in the Social & Communications category. There are five alternatives to SendLeap for a variety of platforms, including Online / Web-based, Android, Android Tablet, Mac and Windows. The best alternative is Pushbullet, which is free. Other great apps like SendLeap are Mightytext (Freemium), mySMS (Freemium), Text Mirror (Freemium) and Texty for Google Messages (Freemium).
mysms Messenger is a completely free messaging service that supports texting on your smartphone, computer and tablet. mysms works cross-platform and is always free of charge. Stay connected with your friends and family no matter where they are.
Text Mirror is ideal if you need a browser based text editor or would like to share text or weblinks with another device. For example, you can send weblinks from your smartphone to a computer, write a long message or mail on a computer and share it with your smartphone.