Mail Merge Lite is an Android app that allows users to send customized emails to multiple contacts at once. The app supports plain text, HTML-only, and HTML email with plain text alternative. Users can import contacts directly from their device or create them manually and organize them using fields in different groups. The Lite version of the app allows users to try out the different features before upgrading to the full version. However, users can only email up to 10 contacts in the Lite version.

One of the key features of Mail Merge Lite is the ability to create email templates using fields. Users can build email templates using the fields and use them to email multiple contacts at once. This feature is particularly useful for sending out email blasts or email newsletters. The app also allows users to set up other email accounts with SMTP access, in case Gmail OAuth isn't currently supported.

The app is easy to use and allows users to reach all their contacts individually with just one touch directly from their Android device. The Lite version of the app is ad-supported, but users can upgrade to the full version, which has no limits. The full version also includes additional features such as importing contacts from a CSV file, importing templates from a text file, and sending emails with attachments.

In summary, Mail Merge Lite is a useful app for anyone who needs to send bulk emails. The app allows users to create email templates using fields and import contacts directly from their device. The Lite version of the app is ad-supported and allows users to email up to 10 contacts at once. The full version of the app includes additional features such as importing contacts from a CSV file, importing templates from a text file, and sending emails with attachments.