This is an app that instantly pushes notifications across a WiFi network.
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Pros
Pro Profiles based on WiFi access points to maintain privacy (Pro only)
Privacy/work mode can be set to automatically be enabled based on the current WiFi access point or if the device is using the mobile network (profiles). Privacy/work mode will neutralize the notification title and body to protect sensitive information. Profiles can also be set to not send notifications at all.
Pro Almost no delay
Notifications+ pushes notifications almost instantly.
Pro Uses a Chrome extension for PC/Mac
Notifications+ uses a Chrome extension to display notifications. This makes it easy to always have your Android notifications on any computer signed into Chrome.
Pro Security
The developer states that "notifications are encrypted using AES256 with GCM authentication. The password you specify is not stored on any servers and are only saved locally on your Android devices and Google Chrome browser. A key is derived from your password using PBKDF2 key derivation."
Pro Runs with Chrome open by default
Cons
Con Free with limited settings
Notifications+ Pro is $2.50 to support the developer and enable pro only settings.