1. Todoist: To-Do List, Tasks & Reminders

• Todoist is a powerful task management app that helps you organize your tasks, set deadlines, and prioritize to-do items. It offers features like project management, labels, and collaboration options.

2. Microsoft Outlook

• Microsoft Outlook is an all-in-one email and calendar app that helps you manage your emails, schedule events, and stay organized. It also integrates with other Microsoft Office apps.

3. Trello: Organize anything with anyone, anywhere!

• Trello is a popular project management app that uses boards, lists, and cards to help you organize tasks and collaborate with others. It's great for visual thinkers and team projects.

4. Evernote: Notes Planner Organizer

• Evernote is a note-taking app that allows you to capture, organize, and share notes, to-do lists, and ideas across different devices. It also supports audio and image notes.

5. Notion - Notes, Tasks, Wikis

• Notion is a versatile app that combines note-taking, task management, and collaboration. It's highly customizable, allowing you to create databases, wikis, and more to suit your needs.

6. Google Keep - Notes and Lists

• Google Keep is a simple note-taking app that syncs with your Google account. It's great for creating quick to-do lists, setting reminders, and capturing ideas.

7. Forest: Stay focused

• Forest is a unique productivity app that helps you stay focused by growing a virtual tree while you work. If you leave the app, your tree dies, encouraging you to avoid distractions.

8. RescueTime: Screen Time & App Usage Tracker

• RescueTime helps you track and manage your digital habits by monitoring the time you spend on apps and websites. It provides insights to help you improve your productivity.

9. Slack

• Slack is a popular team communication app that streamlines collaboration and messaging. It's a great tool for remote teams and project discussions.

10. LastPass: Password Manager - LastPass is a secure password manager that helps you generate, store, and autofill complex passwords for websites and apps, improving your online security.

11. Pocket: Save. Read. Grow. - Pocket is a read-it-later app that allows you to save articles, videos, and web content to read or watch later. It's a great way to curate and organize interesting content.

12. Habitica: Gamify Your Tasks - Habitica turns task management into a game. You create an avatar and gain rewards by completing tasks, forming good habits, and vanquishing monsters.

13. Clockify: Time Tracker - Clockify is a time tracking app that helps you monitor how you spend your time, making it useful for both personal productivity and professional time management.

14. Wunderlist - Wunderlist is a simple and intuitive to-do list app with features like task sharing, due dates, and reminders. While Microsoft To Do has succeeded Wunderlist, many users still prefer its classic interface.

15. Focus@Will: Productivity Music - Focus@Will provides background music scientifically designed to help you concentrate and stay productive. It offers a variety of soundscapes to suit different work styles.

These Android apps cater to a range of productivity needs, from task management to time tracking, note-taking, and team collaboration. Experiment with a few of them to find the combination that works best for your personal and professional productivity goals.