Known issues and future work

What is missing

Long-term events: If an event lasts more than a day, it will only be added to the calendar on the starting day.
Advanced marker options: Markers do not offer much information about the events happening that day. They could incorporate more information and also there should be the possibility to customise them.
Searching bars: Currently there are no search bars for finding a certain date or for finding a certain event.
Calendar view options: The calendar could benefit from additional calendar views (e.g., week) to provide users with more flexibility in how they view events.

UI design consistency: The user interface is basic and lacks a consistent design language. Some screens may not align well with modern UI/UX principles, potentially leading to a suboptimal user experience.
Performance issues on older devices: The app may experience performance issues or slow response times on older Android devices. Optimization for various device specifications could improve usability.
Firebase error handling: The error handling for Firebase interactions is minimal. Better error messages and user feedback would help users understand what went wrong during operations like log in or event creation.
Better time selectors: The selectors for the starting date and time of an event could have a better interface, as well as the selector for the duration.

Notifications: The app currently lacks the functionality for sending notifications and reminders for upcoming events.
User profile management: Adding options for editing the profile, changing the password, and managing preferences would improve the user experience.
Creating multiple calendars: Currently all the events of a user are added to the same calendar. The option of adding multiple calendars (e.g., work, free time, vacation) would improve the user experience.
Localization and internationalization: Expanding language support for users in different regions could broaden the app’s audience and make it more accessible.