On iOS, Apple automatically deploys code that does receipt validation and makes sure that your app can't just be pirated by copying it from device to device (albeit this still being a possibilty on rooted iOS devices).
On macOS, users can just copy the MyApp.app folder to a different Mac and run it. By default, macOS does not perform any receipt validation whatsoever. Apple has some guides on how to implement the necessary code to perform receipt validation yourself..
Recigen Injection
This is rather difficult to do properly, and even then you have to do it in a way that can't be easily circumvented by hackers. This is certainly doable but requires an astonishing amount of work. There's a much better solution.
Recigen Dosage
Receigen - App Store receipt validator Receigen is aimed at developers that want to be able to locally validate receipts from App Store purchases. If you make a commercial app and need to be able. Eigen是一个高层次的C 库，有效支持线性代数，矩阵和矢量运算，数值分析及其相关的算法。Eigen是一个开源库，从3.1.1版本开始遵从MPL2许可。. Check your app in instruments for leaks, with Receigen I get them a lot. – the Reverend Jun 15 '17 at 16:47 Receigen is the cutting edge, but yes it's a shame it seems to have been dropped. – Fattie Sep 19 '17 at 19:29. This video shows how to easily add Mac App Store receipt validation code to a Cocoa application by using the Receigen application.
Rece Gene
Receigen is a fantastic macOS app that will automatically generate the required receipt validation code for you. I strongly suggest using Receigen or an alternative solution.