Phomemo

Any.do is a task and calendar management app with support for reminders, synchronization, and collaboration, but suffers from serious stability issues (crashes, task loss, loading problems), particularly after updates.

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.

Offline calendar with month, week, and day views, supporting CalDAV synchronization and event import/export, but severely slowed by aggressive advertising that renders the app nearly unusable.

A simple reminder app with support for recurring tasks, birthdays, and synchronization, but with frequent notification and sync issues.

A photo editor with neural network-based stylization filters (500+ artistic styles), but frequently crashes, purchased features don't work, and technical support is unresponsive.

Tappsk is a task planner with habit tracking, reminders, and calendar that combines basic productivity features in one interface. Core functionality (task creation, recurring tasks, habits) works stably in practice, but recent updates have introduced stability issues (crashes, freezes, cross-device synchronization problems).

Supershift is an app for planning and tracking shift schedules with support for multiple shift types, color coding, hour and salary calculations, working fully offline without registration.

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