Application Purchasing Method, And Terminal

A first terminal, comprising:

• a processor;
• a memory coupled to the processor;
• and
• a communications interface,
• wherein the memory is configured to store a proof of purchase and a discount voucher, and wherein the processor is configured to execute the following operations:
• receiving, using the communications interface, the proof of purchase returned by a first application platform after an application is purchased on the first application platform using a first terminal;
• transmitting, to a developer server of the application using the communications interface, related information of a terminal that needs to be registered, such that the developer server records the related information of the terminal that needs to be registered, wherein the terminal that needs to be registered includes at least one of the first terminal and a second terminal, and wherein the related information includes at least a device unique identifier, an account identifier, and an operating system type;
• and
• applying, using the communications interface and using the proof of purchase, to the developer server for a discount voucher corresponding to a registered terminal, such that one of the developer server, the first application platform, and a second application platform saves the discount voucher or returns the discount voucher to the registered terminal corresponding to the discount voucher, wherein the registered terminal includes the first terminal or the second terminal.

A second terminal, comprising:

• a processor;
• a memory coupled to the processor;
• and
• a communications interface,
• wherein the processor is configured to execute the following operations:
• acquiring a digital certificate and a private key using the communications interface, wherein the digital certificate and the private key are transmitted by a first terminal to a developer server of a first application together with a first account identifier, a first device unique identifier, a proof of purchase, and an operating system type, such that the developer server records related information of the first terminal, wherein the proof of purchase is returned by a first application platform and is received by the first terminal after the first application is purchased on the first application platform by using the first terminal;
• transmitting related information of the second terminal to the developer server using the communications interface, such that the developer server records the related information of the second terminal, wherein the related information of the second terminal includes at least a second account identifier, a second device unique identifier, the digital certificate, the private key, and the operating system type;
• and
• applying, using the communications interface, to the developer server for a discount voucher corresponding to the second terminal, such that the developer server returns the discount voucher according to the proof of purchase.