The ARK ($ARK) team keep developing despite the price still at the lows; after releasing the new 2.6 core version a very interesting application is deployed on the ARK blockchain: ARK Messenger!
"ARK Messenger, a fully autonomous and secure chat service built entirely on ARK technology is now officially complete! Built by Community member and Delegate Lemii, ARK Messenger(AM) runs on its own customized bridgechain. In addition, AM also makes use of ARK’s Generic Transaction Interface(GTI) to handle the processing of chat messages."
Try out ARK Messenger at https://ARKmessenger.io
ARK Messenger development was completely funded using ARK Grants. Formally known as Tier 0, ARK Grants is a program that empowers developers to build applications, plug-ins, and/or proof of concepts for the ARK Ecosystem.
What is ARK Messenger?
Simply put, the ARK Messenger is a fully autonomous and secure chat service built entirely on ARK technology. Proof-of-Concepts for communication services are becoming increasingly necessary in an age where users are paying closer attention to how their private data is being shared by centralized corporations. The benefits of having a chat service that runs on a blockchain allows users to stay in control of their private data. AM users are not required to supply any sensitive personal information such as name, email address or phone number when creating their account.
Code is open-sourced and is available on https://github.com/ArkEcosystem/poc-ark-messenger
You can read more about Ark messenger on the official blog