Wha… What?!
If you click on Forgot Password, you're taken to Mail to contact app support. Why.
This app offers little information about what it really does, and nothing about how to do it.

Easily record and transfer your mobile call history to an online spreadsheet. This tool simplifies the process of managing and analyzing your call logs.
2.0.1
November 18, 2015
This app has been updated by Apple to display the Apple Watch app icon. Added new data field Call Duration. Allows the users to key-in the duration of the call in hours and minutes.
MoreRiLog is a mobile application designed to easily capture and transmit your call logs to an online spreadsheet, simplifying the management and analysis of your call history.
Yes, RiLog is available for free on iOS devices, including iPhone and iPad.
RiLog is compatible with iPhone, iPad, and iPod devices.
The latest version of RiLog is 2.0.1, which was released on November 18, 2015. The app was initially released on January 6, 2014.
RiLog has an age rating of 4+, making it suitable for a wide range of users.
Based on the provided information, RiLog does not contain advertisements.
The description states that RiLog transmits call logs to an online spreadsheet, but does not specify the exact export formats available.
RiLog has received 1 rating with an average of 1.0 stars, indicating a very low user satisfaction based on the available data.