点券价格：20
Doppel 是一款Mac上的重复文件查找工具，可以快速的查找指定目录中的重复文件，简单易用，很不错！
Doppel 在官网上售价9.95美元，约合人民币60元
Doppel finds duplicates fast. Really fast. It uses custom-developed specialist algorithms to process hundreds of thousands of files, and terabytes of data, in seconds; and a high-speed index to reduce disc accesses and increase speed of subsequent scans. A simple interface, that would be recognisable to any Mac user, makes Doppel easy and intuitive to use.
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Doppel for Mac 1.4