SMS Auto reply is a free Android app developed by wozhuanapp3 that allows you to automatically respond to SMS/MMS and missed/answered calls when you are driving, busy, or unavailable. The app supports multiple rules for auto-reply, each with different reply contents to match your scenes. You can also send an email to yourself and reply to the contact's email address when auto-replied.

Additionally, each rule can contain many conditions such as time range, date range, week range, charging status, SMS keywords, and source number conditions. You can easily test your rules with the SMS simulator function, even simulating the incoming time. Moreover, the app offers general settings of auto-reply content prefix/suffix, excludes (blacklist), and more.

Overall, SMS Auto reply is a useful utility and tools app that can help you stay focused and productive by automatically responding to messages and calls.