Here are some applications on the Play Store that I often use and are very useful but may not be very familiar to many people.
Sections
5
Productivity & Organization
Utilities & Tools
Health & Fitness
Personalization
Education & Knowledge
Productivity & Organization
A very comprehensive task management app with calendar features, pomodoro timer, habit tracker, and integration with multiple platforms. More flexible than the default to-do list app.
TickTick:To Do List & Calendar - Apps on Google Play
Highly customizable interface with a wide selection of themes and icons. Its features include hierarchical task management, advanced reminders, and calendar integration.
Memorigi: To-Do List & Tasks - Apps on Google Play
An open-source application for task management that is simple, clean, and highly privacy-respectful. Integrates well with Nextcloud Tasks and DAVx5.
Tasks.org: to-do list & tasks - Apps on Google Play
An easy-to-use mood tracker and journal app with an attractive visual interface. Helps you understand your mood and activity patterns.
Daylio Journal - Mood Tracker - Apps on Google Play
Habit tracking app with a focus on visualizing progress through maps. Provides unique motivation to stay consistent.
Any Distance Inc. Apps on the App Store
A very powerful and flexible Markdown-based note-taking application. Great for keeping interconnected notes and building a personal knowledge base. Requires a slight learning curve.
Obsidian - Apps on Google Play
Utilities & Tools
A minimalist Android launcher that focuses on quick access to apps through a vertical and alphabetical list. Helps reduce distractions and make phone use more efficient.
Niagara Launcher ‧ Home Screen - Apps on Google Play
An open-source application for sharing files between devices (Android, iOS, macOS, Windows, Linux) over a local Wi-Fi network without an internet connection. A safe and fast alternative to cloud storage or Bluetooth.
LocalSend: Transfer Files - Apps on Google Play
An application that lets you check links before opening them to detect suspicious trackers or redirects. Useful for online privacy and security.
URLCheck - Apps on Google Play
A collection of simple image processing tools such as compression, resizing, format conversion, and metadata removal. Useful for quickly optimizing images.
Image Toolbox - Edit & Convert - Apps on Google Play
Application for downloading videos and audio from various online platforms (yt-dlp based). Flexible options for storing content offline.
SealX Downloader - Apps on Google Play
Health & Fitness
Advanced sleep tracker app with smart alarm feature that wakes you up during light sleep times. Analyzes sleep cycles and provides detailed statistics.
Sleep as Android: Smart alarm - Apps on Google Play
Although popular, it may not be familiar to all Android users. This app is great for tracking physical activity, sleep, and heart rate (if using a Fitbit device).
Fitbit - Apps on Google Play
A simple and effective medication reminder app with dosage and schedule customization options.
TakeYourPills Pill Reminder - Apps on Google Play
Personalization
A file manager with a clean and intuitive Material Design, and complete basic features.
Material Files - Apps on Google Play
Automatic wallpaper maker app with unique and ever-changing abstract patterns.
Tapet Wallpapers Generator - Apps on Google Play
Education & Knowledge
A highly effective spaced repetition based flashcard application for learning and memorizing information. Requires some understanding of SRS concepts.
AnkiDroid Flashcards - Apps on Google Play
Access to thousands of free audiobooks recorded by volunteers. A great choice for enjoying literature while traveling or on the go.