Organize complex projects with infinitely layered tasks. View all parent, child, and grandchild tasks at a glance without multiple taps. Collapse or expand task branches for clarity and utilize repeat functions for recurring to-dos.






11+ similar apps compared and reviewed
Whether you want more options like Codex Calc or a completely different take on the same concept, our curated list of 11+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.






Organize complex projects with infinitely layered tasks. View all parent, child, and grandchild tasks at a glance without multiple taps. Collapse or expand task branches for clarity and utilize repeat functions for recurring to-dos.






This app provides a simple and effective way to set up recurring reminders for various tasks and routines. It features customizable timers, optional interval cycles, and background operation with visual and audio notifications.




Track your current altitude and location with this GPS-powered utility. Save important spots, view coordinates in multiple formats, and easily share your position with others. Ideal for outdoor adventures and travel.


This app allows you to control and manage an advanced robotic lawn mower. Easily set virtual boundaries, schedule mowing times, and monitor your mower's progress remotely. Enjoy a perfectly manicured lawn with minimal effort.


This app provides comprehensive vehicle care and repair information for car and truck owners, DIYers, and technicians. It offers diagnostic capabilities with compatible OBD2 scanners and a vast database of verified fixes from ASE Master Technicians. Users can also access free vehicle maintenance information and schedule repairs.


This utility app helps you solve problems involving ratios and proportions. It calculates an unknown number based on the relationship between two other known numbers.


This app provides comprehensive mobile services for campus cards, including traditional card functions like consumption and authentication, enhanced with QR code capabilities. It offers features for managing your campus card, paying various campus fees, and booking campus facilities.






Easily determine the capacity of structural steel beams and columns. Get detailed calculation sheets to verify your work, designed according to AISC 360-16 standards. Features intuitive touch-based interaction and built-in material databases.