# 40.示例5：记录的成本有多大

很多同学会觉得每天都用aTimeLogger Pro记录太花时间了，实际上用aTimeLogger Pro记录的时间成本是多少呢？

有两种数据来源：

* 数据来源1：iOS“屏幕使用时间”

![](/files/-LmjG4ooy6gFKCUj9611)

安卓可以用“24pi”或者“[应用定时器2](https://apkpure.com/cn/app-timer-mini-2/info.kfsoft.android.AppTimer2)”，如果不用软件的，我们也可以用数据估算。

* 数据来源2：对aTimeLogger Pro所有活动项计数

打开月透视表，筛选某时间段全部活动的点击次数，然后用次数/时间段。

![](/files/-LmjG6t2tklOrP8KeWRq)

得到我今年1-4月数据，共点击6189次，平均每天点51次。

如果你不写备注，那么每次点击的时间算5秒，则平均每天花4.2分钟在aTimeLogger Pro上；如果你写备注，算15秒，则平均每天13分钟，这就是记录的成本。


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