Knowledge Base & Guides
Explore expert tutorials, product updates, zero-knowledge privacy deep dives, hands-free voice workflows, and seamless migration guides to master your daily tasks.
Master every feature of 123 To Do in order of importance—from midnight rollovers and interactive clock face scheduling to encrypted sync, voice dictation, and the Pro/Lite dual skins.
New to 123 To Do? Here are the absolute basics to get organized today—how the 1-2-3 rule works, why your data is 100% private and automatically saved, and how to put the app on your phone in one tap.
Discover how to eliminate decision fatigue, master keyboard velocity, dictate hands-free notes, and leverage the 1-2-3 priority system to double your daily output.
Most people have never heard of a Progressive Web App (PWA). Here is what it means in plain English, why you should install 123 ToDo rather than using a browser tab, and simple step-by-step instructions for iPhone, Android, Mac, and Windows.
Attach up to 3 photos per note! With camera capture on mobile, direct clipboard pasting (Cmd+V) for screen grabs on desktop, sharp client-side compression, and a full-screen Lightbox viewer — included completely free with zero ads.
Discover how 123 ToDo's new 10-tier achievement engine, daily streaks, and Productivity Points transform task management into an engaging, habit-forming daily practice.
Discover how 123 ToDo protects your task workspace against accidental mass deletions and device crashes with automated 24-hour shadow snapshots and 100% offline PWA storage.
Learn how zero-knowledge client-side encryption protects your confidential client names, business strategies, and personal notes across devices with zero tracking and zero subscription fees.
Discover how trade professionals, site managers, and busy field workers log site updates 5x faster using 123 ToDo Simple Voice Notes mode with spoken punctuation and instant typo commands.