Sites and apps similar to Challenge Achieved include Trello, which has a free version. Other options are Todoist, TickTick, Tasks.org and Habitica. You're spoiled for choice with Todo List Managers like Challenge Achieved: we list more than 100 alternatives for iPhone, Android, Mac, Windows and iPad.
All-in-one system integrates project, task, and time management with customizable modular dashboards, collaborative image annotation, multiple task views, and granular workflow customization for teams of any size or industry, streamlining complex to simple projects.
United States
Organize and visualize tasks with Trello's boards, lists, and cards. Customize workflows for projects, streamline team collaboration, and integrate tasks seamlessly without starting from scratch. Suitable for meetings, onboarding, and brainstorming with proven playbooks.
Australia
Organizes tasks efficiently with quick add scheduling, 60+ tool integrations, advanced language recognition for recurring tasks, and platform compatibility. It offers project templates, visual task priorities, and personalized productivity insights.
United States
Organize tasks with lists, tags, and priorities. Share task lists with others, attach files, and set up to 5 reminders per task. Use checklist, note-taking, and Pomodoro timer features for productivity.
Hong Kong SAR China
Tasks is libre open-source software, based on the original source code from the popular Astrid Tasks & To Do List! Tasks is easy-to-use, feature-packed, flexible and customizable, and synchronizes with a variety of services.
United States
Transforms habit and task management into a gamified system with customizable avatars, in-game rewards, team quests, collectibles, and flexible input of habits, dailies, and to-dos. Track progress, join challenges, and access features on web and mobile.
United States
Open-source kanban board featuring real-time collaboration, customizable labels, filtered views, card comments, attachments, member assignments, permission roles, checklists, notifications, responsive design, integration options, and self-hosting support.
Finland
EU
Organize projects with deeply nested tasks, multi-language support, and flexible XML storage. Streamline scheduling, customize printing with stylesheets, and collaborate efficiently on multiple projects, including IT and general GTD use, on Windows or Linux via WINE.
Australia
An award-winning cloud-based Project Management software aims to help collaborative teams organize and manage from small enterprise projects to large-scale initiatives.
Taiwan
Zenkit is a hyper-flexible SaaS platform for managing projects, databases, and more. Use Kanban boards, tables, or custom views to organize tasks, track data, and collaborate with your team. Build a CRM, financial planner, or simply plan your day—all in one intuitive workspace.
GermanyEU
Think of Vikunja like the notebook you have with all your things to keep track of. But better.
GermanyEU
Australia
Org mode is for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system.
GermanyEU
