ToDo - Task Manager & Planner

Todoist is a task management app with calendar support, voice input (Ramble), various views (list, board, calendar), cross-device synchronization, and collaboration features; partially implemented with issues in voice input for Russian language and some devices.

Shift work scheduling app with automatic alarms, income tracking, and cross-device synchronization, operating fully offline without registration.

Yandex Calendar is a planner for creating meetings and events with reminders, multiple calendar support, widgets, and synchronization, but has numerous unresolved issues: no to-do list in the app, unreliable notifications, lack of iPad support, and missing features promised in the web version.

Time planner that displays Google Calendar events and tasks as a circular clock face for visualizing your daily schedule with a home screen widget.

LeaderTask is a task manager with calendar, reminders, and team collaboration support that promises more functionality than actually works in the free version; has stability issues on older iPhones and problems with task recurrence logic.

Multifunctional email application with calendar, cloud storage and notes integration, supporting multiple mail accounts with an AI assistant for email summarization.

Menstrual cycle tracker with ovulation, symptom, mood tracking and medication reminders; supports synchronization with Apple Health and partner mode, but has issues with access after phone change and complicated data processing consent.

HabitBull is a habit tracker with flexible reminders, progress charts, and cross-device synchronization. Primarily operates in English and has issues with registration and outdated interface.