Apps to Periodic reminders

DottedSign is a comprehensive online e-signature solution designed to streamline document signing workflows. It empowers individuals and businesses to securely and legally sign documents electronically, eliminating the need for printing, scanning, and mailing.

Followup.cc is a powerful email productivity suite designed to ensure no important conversation or task falls through the cracks. It offers robust email scheduling and reminder tools, helping professionals manage their outreach and follow-up processes efficiently directly from their inbox.

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.

ActiveInbox transforms your Gmail inbox into a powerful task manager, helping you prioritize emails, manage projects, and achieve Inbox Zero with a Getting Things Done (GTD) approach directly within your familiar email environment.

Nozbe is a robust task and project management application designed to help individuals and teams implement the Getting Things Done (GTD) methodology for enhanced productivity and collaboration. It offers a flexible environment for managing tasks, projects, and time effectively.

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.

ToDoList is a robust, free task management software designed for individuals and teams seeking a highly customizable, tree-structured approach to project organization. It excels in breaking down complex projects into manageable subtasks, offering features like Gantt charts, Kanban boards, and extensive export options without requiring a web connection.

Things is a highly acclaimed task manager designed for macOS, iPadOS, and iOS platforms. It offers a clean, intuitive interface to help users capture, organize, and complete their tasks and projects effectively. Praised for its minimalist design and powerful features, Things aims to make personal productivity effortless and enjoyable.

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.