What are some alternatives?
When comparing Mini WA+ and Sesame Chat, you can also consider the following products
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Dasher Messenger - Dasher lets you do more than just text message. It's messaging with benefits:
Zulip - Powerful open source group chat
Tinode - Tinode Instant Messaging
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Green Messenger - WhatsApp Messenger Web for Chrome. Text/Chat on computer. Notifications, messages, tools.