什么是 Retention Rate 留存率？
留存率（RR）是指在安装后N天内，所有被追踪的安装用户中重新访问移动应用或网页应用的用户所占的比例。
N天留存率的计算方式是将N天内留存的独立用户数除以0天独立用户数。
了解留存率与相对留存率的区别
Tenjin现已支持基于UTC时间的用户群组策略进行留存率计算。
With this approach, Day 1 begins at the first UTC midnight following each user's install timestamp. This method helps align retention rate calculations with other platforms that use UTC-based timestamps, reducing discrepancies in metrics.
若需为您的账户启用此功能，请前往*我的账户 → 管理用户 → 用户群组策略*并选择所需选项。
什么是 Retention Rate 留存率？
Retention rate helps to track users' interest in an app. The higher the retention rate, the more interest users have in the app in question. It is possible to increase the RR of an app by knowing what users like and what they dislike about the app, and by making the necessary improvements. This can be done through a data-driven approach of using attribution tools to track retention rate, which is connected to metrics such as 流失率, repeat purchase rate, and life-time value (LTV).
如何计算留存率？
可以使用以下公式来计算留存率：
N 天留存率 = N 天回归用户 / 第 0 天新用户
在移动营销中，有不同的计算留存率的方法。
请查看我们的 常见问题 以了解有关不同留存率的更多信息。
留存率示例
Let's consider the following simplified example to understand the concept of retention rate. Let's say an app was downloaded 100 times in one day (Day 0). The next day, only 10 visitors came back. This means that the first-day or Day 1 retention rate for the app is ([10 divided by 100] * 100 = 10%). Let's then assume that in ten days (Day 10) since the install date (Day 0), just one visitor comes back to the same app. This means that the Day 10 or ten-day retention rate (RR) for the app is ([1 divided by 100] * 100 = 1%).
好的留存率是多少？
通常，要分析应用程序的留存率，需要考虑第 1 天、第 7 天、第 14 天、第 30 天和第 90 天的留存率。 对于不同应用和游戏类型，目标留存率略有不同。例如，对于休闲和超休闲游戏，第一天的留存率预计为 30%-40%。
一般来说，一款成功的游戏或应用，第 1 天留存率 30-40%，第 7 天留存率约 20%，第 30 天留存率 5-10%。