[Other SmartWatches] pacosal:
This set of Apps will allow you to receive notifications on your secondary devices such as:

- The tablet you use away from the phone.

- The small mobile that you use for sports and leave your house phablet in safekeeping.

- Your SmartWatch with Android - You can use bluetooth

Now you can receive notifications, sms and calls

Installation

Once installed and configured M2D Notifications Sender on your main phone (which usually use), this forward notifications to your (max 3) secondary devices so you can read them while away from your main phone (if they have internet access) and in many cases will leave you answer them.

On your tablet, or mobile accessory or even watch android, you must install M2D App Notifications Receiver and once configured, you can receive and reply notifications.

Configuration

*** Now you can use Bluetooth as well

For devices can look them eatch others, you need to enter in the App M2D Sender the Receivers codes. This code is shown on the display settings of the M2D Receiver App once it is installed on your secondary device.

In the Receiver M2D App you must enter the IMEI of the main device. This imei is shown on screen settings of the M2D Sender App once installed in your primary device.

There are other security parameters to avoid that anyone can send messages to your device.

On the M2D Sender App you must enter your own key and in the M2D Receiver App the same key that must match since otherwise the messages will be discarded. This key allows the Sender to send messages and that the Receiver will accept. By default Apps already have this code included, but you better change them.

On the M2D Receiver App you must enter your own key and in the M2D Sender App the same key that must match since otherwise the messages will be discarded. This key allows the Sender to send messages and that the Receiver will accept. By default Apps already have this code included, but you better change them.

Additionally, messages are encrypted so that only the recipient can read them. For this an encryption key is used in the settings. By default Apps already have this codebook including, but you better change them.

Replying

In addition to receiving notifications, in many cases, action buttons will appear with different options, including reply ones.

You can reply with predefined options and also with the keyboard as usual.

Every time you send an action, we will receive a message with the status of such action, for example if the message was sent or not.

To avoid synchronization issues notifications viewed on the main device are not automatically removed and vice versa.

Sending whatsapp

The M2D Receiver App has a button that can send messages to contacts we have previously received whatsapp messages. This depends on if there are unread messages in whatapp when a new notification arrives, but the app will always be learning and allows you to write to more contacts.

How does it work

- Notifications are encrypted and send with the key configured on the server Apps.

- The server checks the sender and receiver data to see if they are registered and if so sends the message to Google using GCM (What's this?)

- When the Receiver has internet, Google shall forward the notification to Receiver

- The receiver decrypts the message and checks that the keys to Sender and Receiver match

- The receiver displays a notification to the user

In the case of the answers is similar, but completely upside down.

Privacy

The server never stores the message that it receives, it only makes like a proxy for shipment and is very light.

Further messages are encrypted with the encryption key (change those default)

Apps

M2D Sender: https://play.google.com/store/apps/details?id=com.pacosal.m2d.notifications

M2D Receiver: https://play.google.com/store/apps/details?id=com.pacosal.m2d.receiver

M2D Bluetooth Manager https://play.google.com/store/apps/details?id=com.pacosal.m2d.manager

Enjoy!

Original thread here http://xdaforums.com/android/apps-games/app-m2d-notifications-sender-receiver-t2986778