首先，他采取了“免费增值”的策略，就是除了一开始收费2美元的“汽车定位器”程序的付费版本之外，还提供一个免费版让人试用。

First, he employed a “freemium” strategy, offering a free version of Car Locator for users to try out, in addition to the paid version of the app, for which he charged $2 at first.

youdao

首先，他采取了“免费增值”的策略，就是除了一开始收费2美元的“汽车定位器”程序的付费版本之外，还提供一个免费版让人试用。

First, he employed a “freemium” strategy, offering a free version of Car Locator for users to try out, in addition to the paid version of the app, for which he charged $2 at first.

youdao