Apps Related to Periodic reminders

GTasks is a streamlined and powerful task management application engineered for seamless synchronization with Google Tasks. It offers a clean interface and essential features for organizing your tasks, making it an excellent choice for individuals already embedded within the Google ecosystem.

ColorNote is a lightweight and intuitive notetaking and checklist application for Android. It allows users to quickly create and organize notes and lists with color-coding, syncing, and simple features for everyday productivity.

Stickies is a lightweight and highly customizable desktop sticky note application for Windows. It allows users to create digital notes that stay on the screen, offering various customization options and features to help manage reminders and tasks efficiently. Engineered to be portable, it's an ideal tool for keeping track of important information without cluttering your physical workspace.

TickTick is a powerful cross-platform to-do list and task management application designed to help individuals and teams organize tasks, manage time, and track habits effectively. With robust syncing capabilities and integrations, it streamlines productivity across various devices.

Inbox by Gmail was a reimagining of email as an organized place to get things done. It used bundling to group similar messages and offered features like reminders and snoozing to manage workflow effectively. Designed by the Gmail team, it aimed to reduce email overwhelm and prioritize what matters.