LinC 领客 app for iPhone and iPad

Instantly reach the people in your life—for free. Messenger is just like texting, but you dont have to pay for every message (it works with your data plan). 
Message people in your phone book and just enter a phone number to add a new contact.
Group chats: Create groups for the people you message most. Name them, set group photos and keep them all in one place.
Photos and videos: Shoot videos and snap selfies or other photos right from the app and send them with one tap.

Even more ways to message: 
Bring your conversations to life with stickers. 
Preview your camera roll photos and videos without leaving the conversation--then choose the perfect ones to send.
Record voice messages when you have more to say.

Extra features:
Know when people have seen your messages.
Forward messages or photos to people who werent in the conversation.
Search for people and groups to quickly get back to them.
Turn on location to let people know when youre nearby.
See whos available on Messenger. 
Turn off notifications when youre working, sleeping or just need a break.
Stay logged in so you never miss a message.