Systems and methods to discover and notify devices that come in close proximity with each other

A computer-implemented method for discovering a unique code associated with a second electronic device on a first electronic device connected over a first peer-to-peer wireless network link to the second electronic device, the method comprising:

• sending, by the first electronic device, to the second electronic device over the first peer-to-peer wireless network link, a first unique code generated by the first electronic device, wherein the first unique code corresponds to a first user identifier of the first electronic device, both the first unique code and the first user identifier are stored on the first electronic device;
• receiving, by the first electronic device a second unique code generated by the second electronic device, wherein the second unique code corresponds to a second user identifier of the second electronic device, both the second unique code and the second user identifier are stored on the second electronic device;
• storing, on the first electronic device, the second unique code of the second electronic device, received from the second electronic device, and the second metadata associated with the second electronic device, wherein the second metadata associated with the second electronic device includes the time, proximity or duration of its interaction with the first electronic device;
• retrieving, from a coupled backend database stored in a cloud, a third unique code;
• and
• upon determining that the third unique code matches the second unique code received by the first electronic device from the second electronic device over the first peer-to-peer wireless network link, displaying a notification on the first electronic device;
• wherein the third unique code is a unique code of an electronic device, uploaded from the electronic device to the coupled backend database stored in the cloud, in response to a user input on the electronic device.

The A computer-implemented method for discovering a unique code associated with a second electronic device on a first electronic device connected over a first peer-to-peer wireless network link to the second electronic device, the method comprising:

• sending, by the first electronic device, to the second electronic device, over the first peer-to-peer wireless network link, a first unique code generated by the first electronic device, wherein the first unique code corresponds to a first user identifier of the first electronic device, both the first unique code and the first user identifier are stored on the first electronic device;
• receiving, by the first electronic device a second unique code generated by the second electronic device, wherein the second unique code corresponds to a second user identifier of the second electronic device, both the second unique code and the second user identifier are stored on the second electronic device;
• storing, on the first electronic device, the second unique code of the second electronic device received from the second electronic device, and the second metadata associated with the second electronic device, wherein the second metadata associated with the second electronic device includes the time, proximity or duration of its interaction with the first electronic device;
• retrieving, from a coupled backend database stored in a cloud, a third unique code;
• and
• upon determining that the third unique code matches the second unique code received by the first electronic device from the second electronic device over the first peer-to-peer wireless network link, displaying a notification on the first electronic device,
• wherein the third unique code is a unique code of an electronic device, uploaded to the coupled backend database stored in the cloud, via an API.

One or more non-transitory computer-readable storage media storing a program including one or more computer-readable media storing instructions executable by one or more processors, and wherein the instructions, when executed by the one or more processors, program the one or more processors of a first electronic device or a plurality of electronic devices to:

• connect, with a second electronic device of a second user of the plurality of electronic devices over a first peer-to-peer wireless network link;
• send, to the second electronic device over the first peer-to-peer wireless network link, a first unique code generated by the first electronic device, wherein the first unique code corresponds to a first user identifier of the first electronic device, both the first unique code and the first user identifier are stored on the first electronic device;
• receive, from the second electronic device, over the first peer-to-peer wireless network link, a second unique code generated by the second electronic device, the second unique code being unique to the second electronic device, wherein the second unique code corresponds to a second user identifier of the second electronic device, both the second unique code and the second user identifier are stored on the second electronic device;
• store, on the first electronic device, the second unique code of the second electronic device, received from the second electronic device, and second metadata associated with the second electronic device, wherein the second metadata associated with the second electronic device includes the time, proximity or duration of its interaction with the first electronic device;
• retrieve, from a coupled backend database stored in a cloud, a third unique code, wherein the third unique code is a unique code of an electronic device, uploaded to the coupled backend database stored in the cloud;
• and
• upon determining that the third unique code matches the second unique code received by the first electronic device from the second electronic device over the first peer-to-peer wireless network link, display a notification on the first electronic device.

A system comprising:

• an electronic device of a first user comprising:
• one or more processors;
• a display coupled to the one or more processors;
• and
• one or more computer-readable media storing instructions executable by the one or more processors, wherein the electronic device is a first electronic device of a plurality of electronic devices, and wherein the instructions, when executed by the one or more processors, program the one or more processors of the first electronic device to:
• connect, with a second electronic device of a second user of the plurality of electronic devices over a first peer-to-peer wireless network link;
• send, to the second electronic device over the first peer-to-peer wireless network link, a first unique code generated by the first electronic device, wherein the first unique code corresponds to a first user identifier of the first electronic device, both the first unique code and the first user identifier are stored on the first electronic device;
• receive from the second electronic device, over the first peer-to-peer wireless network link, a second unique code generated by the second electronic device, the second unique code being unique to the second electronic device, wherein the second unique code corresponds to a second user identifier of the second electronic device, both the second unique code and the second user identifier are stored on the second electronic device;
• store, on the first electronic device, the second unique code of the second electronic device received from the second electronic device, and second metadata associated with the second electronic device, wherein the second metadata associated with the second electronic device includes the time, proximity or duration of its interaction with the first electronic device;
• a coupled backend database stored in a cloud;
• and
• a coupled backend server connected to the coupled backend database in the cloud;
• wherein the coupled backend server instructs the first electronic device to display a notification, upon determining that the coupled backend database has received a third unique code matching the second unique code it received;
• wherein the coupled backend database receives the second unique code of the second electronic device, and the second metadata, from the first electronic device;
• wherein the third unique code is a unique code of an electronic device;
• wherein the third unique code is uploaded to the coupled backend database stored in the cloud.