When comparing Taskwarrior vs Listonic, the Slant community recommends Taskwarrior for most people. In the question“What are the best to-do list apps for Android?” Taskwarrior is ranked 9th while Listonic is ranked 17th. 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
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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 Easy list-sharing with other users
Pro Provides you with useful cooking tips
Pro Automatically categorizes items by aisle
Listonic will show an icon that represents an aisle next to the item.
Pro Syncs between all your devices
Pro Speeds up the creation of a shopping list by allowing you to choose from a list of your favorite products
The app can show you a list of items you have chosen most often. That list can then be used to quickly create a shopping list from your favorite products.
Pro Smart voice input
Pro Environmentally-friendly
Fights waste. You plan what to buy and don’t end up buying more stuff that necessary
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 Only preset categories available
There's currently no way create your own categories for items. That functionality might be coming in the future.
