Disclosed are systems, methods, and non-transitory computer-readable storage media for setting a reminder triggered by a target device. A requesting device sends a request to a server to set a notification triggered by a target device. The request includes parameters, such as a location and a condition that define when the notification is triggered. The server sends instruction to the target device to set the notification based on the parameters. When the condition such as arrival is met by the target device in relation to the location the target device sends a message to the server that the notification has been triggered. The target device can set a geo-fence to determine the position of the target device in relation to the location, and the requesting user can dictate the size of the geo-fence. The server sends a message to the requesting device that the notification has been triggered.