When comparing Taskwarrior vs Amplenote, the Slant community recommends Taskwarrior for most people. In the question“What are the best cross-platform task apps?” Taskwarrior is ranked 2nd while Amplenote is ranked 55th. The most important reason people chose Taskwarrior is:
The command line interface puts powerful filtering expressions, context, annotations, tags, due dates, reoccurrence, and user-defined-attributes totally in your hands. It’s fast and low friction.
Specs
Ranked in these QuestionsQuestion Ranking
Pros

Pro Command line interface
The command line interface puts powerful filtering expressions, context, annotations, tags, due dates, reoccurrence, and user-defined-attributes totally in your hands. It’s fast and low friction.
Pro Extensible
Taskwarrior has many front-ends, services, extensions, hook scripts, and capsules available. Taskwarrior keeps a list of contributed tools on their site.
Pro Lightweight and fast
Taskwarrior is written in the speedy C++ language.
Pro Tasks stored in plain text files locally
Future-proof and easily integrated with version control system. You never lose access to your data.

Pro Sync across devices
When used in conjunction with the Taskserver, it can sync tasks (conflict-free) across your Taskwarrior devices. This includes integration with Mirakel.

Pro Supported internationally
It has UTF8 support and is translated into many languages.
Pro Customizability
Taskworrior allows you to define custom attributes and reports to your needs.
Pro Self-hosted Taskserver
You can be in full control of your data.
Pro Notes encrypted at rest on servers
See here.
Pro Long-term minded
Company has not raised venture capital.
Pro "Idea Execution Funnel" methodology
Schema follows sensible flow from capture to revision to prioritize to schedule.
Pro Community-driven
Team maintains a voting board at https://amplenote.featureupvote.com that drives development roadmap, ensuring calibration between note enthusiasts and the product.
Pro Publish and share notes
Publish notes to the web (with configurable URLs) or share notes with collaborators.
Pro Offline-first
Fully functional offline mode.
Pro Omniplatform
Can be installed on macOS, Linux, Windows (via PWA), iOS and Android.
Pro Task/calendar syncing (Google Calendar & Outlook)
Any task with a date/time assigned to it will be exported to calendars optionally connected. Completing the task removes it from calendar.
Pro Multi-level tagging (personal/hobbies/bike-rides) to keep organized
Any note can be assigned as many deeply nested tags as desired. The tag hierarchy can be navigated, filtered on tasks or notes.
Pro Backlinking & networked note references
Amplenote supports the same [[]] syntax popular in Roam to create a link to an existing note. Every linked note has a tab with all the references into that note.
Pro Automatically sorted task list
Every task can be marked as "Urgent" or "Important," along with the time it's due. This makes it possible for the software to automatically sort your todo list in a way that makes sense, and save you time of deciding what to work on first every day.
Cons
Con Command line interface
A command line interface is a arguably overly verbose, consequently tedious, way to interact with a To Do list.
Con Not end-to-end encrypted
See here.
