What are some alternatives?
When comparing offCents and Instantbird, you can also consider the following products
Tesla Semi - The safest, and most comfortable truck ever made
Adium - Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Electricity Map - Live CO2 emissions of electricity consumption
Trillian - Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.
Faraday Future FF91 - Super fast electric car
Pidgin - Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.