What are the unique IDs for mobile devices (mobile phones)?

What are the unique IDs for mobile devices (mobile phones)?

In mobile advertising, the ID of a device is used to track the most important identity of a person.

For the app's own products, using the device unique ID can track the user's entire process data from download to activation, registration, use, churn, and regression, which is very helpful for product operation.

For precision advertising and personalized recommendations, you can use the device ID for data collection, and then the thousand-faceted precision marketing.

For external data, mobile device ID is a unique ID that can be opened, exchanged and supplemented with data outside the company, and is recognized by everyone on the market.

Now that the mobile device ID is so important, let's talk about what IDs we can use:

First, the IMEI

IMEI is an international mobile device identification Code, a string of 15-digit number, each of the regular channel sales of GSM mobile phones have a unique IMEI code. The IMEI code is planned by the GSMA Association and authorized by the regional organizations for distribution, typically stored by the operator in the SIM card.

1. Under iOS system: unable to get
After IOS5.0, Apple officially blocked the interface to get the IMEI number, so subsequent versions of the Apple device could not get the IMEI number.

2, andriod system: can get
Andriod's mobile device allows the developer to obtain the IMEI number, but the Andriod6.0 version needs to be actively authorized by the user to obtain it.

Second, IDFA

Apple and Google's advertising identifiers for mobile devices

1. Under iOS system: can get
The IDFA can be obtained after the IOS6.0 version, but the mobile user can manually restore and manually disable the acquisition (manually turn off ad tracking, which currently has a smaller number of users).

2. Under the Andriod system: limited access
In fact, after Andriod2.3, Google also learned Apple launched IDFA, used to track the unique identity of ads, the function is basically the same as Apple's IDFA. But Google's IDFA is based on Google Play and other basic apps, in the domestic environment, Google's basic apps are either inaccessible or removed directly by the handset maker. Therefore, the IDFA on the Android phone does not have the unique ID function in the country.

Third, UDID

The original Apple device's unique ID, which is a 40-character component.

1. Under iOS system: unable to get
Older versions of iOS are available, but after IOS7.0, Apple disables this ID and the new version is not available.

2, Andriod System: Unable to obtain
The andriod system does not have this ID.

Four, MAC

Mac refers to the address of a wireless network card

1. Under iOS system: unable to get
After the IOS7.0 version of iOS devices cannot get to Mac (it is accurate to return a fixed value of the Mac, not unique).

2, andriod system: can get
The app developer can proactively get the MAC address of the current andriod phone, plus the MAC address of the current device if it is via WiFi or WiFi AP probe.

Wu, andriod_id

ANDRIOD_ID is the unique ID of the andriod device, and each new device system randomly assigns a andriod_id, which is a 64-digit number. A new ID is generated if the device is factory reset, and the machine is being brushed.

Vi. other IDFV, Openudid, UUID

IDFV is the unique ID that an Apple device gives to a single app to track a user, which is unique within an app and is not unique across apps, so it can only be used by a single app to track user behavior.

Openudid is an unofficial API that can be used in both iOS and andriod systems, with some companies using this ID.

UUID due to the fact that the Andriod system ID is too complex, there are also vendors that generate UUID in the app based on the UUID generation criteria.

Both Apple and Google are increasingly focused on protecting users ' privacy. Therefore, as long as it is related to the device's uniqueness and non-change of the ID, are slowly not Apple/google recommended use, such as MAC address, Udid, etc., are permanently bound with the device, once the leak is suspected of violating user privacy. So now manufacturers are starting to push all types of ad IDs, such as IDFA, that can be used to track ads, and can be set by the user at their own discretion.

At present, in the country, the main Android devices are mainly IMEI, iOS devices mainly to IDFA-based.

Refer to MMA China Wireless Marketing Alliance, "programmatic advertising," books and so on.

The original published in the public number "bzsikao", welcome attention, Exchange more Internet cognition, work management, Big Data, Web, blockchain technology.

What are the unique IDs for mobile devices (mobile phones)?