Hourly Reminder is an Android alarm clock application that can be set to remind users of the current time on user-specified hours. It offers alarm types like speech, beep, or custom WAV/OGG files, and it is ad-free, open-source, and licensed under GPLv3.

The app allows users to set reminders for specific hours and select the type of alarm they want to hear. The alarm can be customized to play a speech, beep or custom WAV/OGG files.

Additionally, if users want to translate the app to their language or add a new speak engine, they can follow the instructions provided in the documentation. However, if users experience issues with the alarms running late or not being exact on time, they can refer to the known Android bugs documented by the developer.

Overall, Hourly Reminder is a useful and customizable alarm clock application for Android users who want to be reminded of the current time at specific intervals.