When comparing Taskwarrior vs MyLifeOrganized, the Slant community recommends Taskwarrior for most people. In the question“What are the best cross-platform task apps?” Taskwarrior is ranked 2nd while MyLifeOrganized is ranked 40th. 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 Pretty good Android app with Widget
Pro Helpful community
They're using google groups, but they're really responsive and friendly, also to beginners.
Pro Native windows app
Pro Hierarchy-based to-do list
If you have a complicated to do list, this app can organize it into group of items. In fact, this is the main feature of the software.
Pro Excellent search, filter and custom views
The text search is excellent. It comes with some default views, but you can create custom hierarchical and flat views, using some quite powerful logic, to focus on tasks by almost any criteria you can think of.
Pro Custom views
Create custom views by numerous filters and triggers.
Pro Many customizable keyboard shortcut
Quickly and deeply manage your tasks .
Pro Context include other contexts
Each Context may include other Contexts. This can form a hierarchy (or even a net) of contexts. For example Contexts "Phone" and "Internet" can be included to the Context "Work" as well as to the Context "Home".
Pro Open/closed hours for contexts
A Context may have a schedule: specific times during which it is open or closed. If a Context you select as a To-Do filter is closed at the moment, the tasks associated with this Context will not be shown in the To-Do list.
Pro Calendar view and google calendar sync
This feature help user to visualize their daily workload in a graph form (mobile version) , so it assist to plan future tasks and events in a sense of work/life balance. Just simply connect to google calendar, you could view your events and tasks, and plan effectively.
Pro Input parsing
MLO can parse or interpret the text you enter in Inbox on mobile and in some text input fields on Windows. For example you can enter "in 30 min" or "next Friday at 2pm" in date and time pickers. In Rapid Task Entry dialog you can even type: "Call Bob about the party tomorrow at 3pm remind 10 min in advance". The parameters of the task will be converted from the text automatically.
Pro Hierarchy-based to do list
If you have a complicated to do list, this app can organize it into group of items. In fact, this is the main feature of the software.
Pro PocketMod report
MLO (Window) can print PocketMod, which is a A4 paper that you can fold into a small booklet. Each page of this booklet can contain different information you select from the MLO app. It's very helpful especially on the occasion that you need to rely on paper only, such as camping, retreat, outdoor gaming activity, etc.
Pro One-time purchase
It is much cheaper than subscription-based apps . MLO license doesn't expire. Upgrade is optional and offered with a discount.
Pro Highly customisable
Easy to create your own workflow.
Pro Flexible recurrence options
Robust implementation of recurrence options. You can set it to repeat every N day every N months, repeat N day after the completion the main task can recurs once all/any subtasks are completed, and other.
Pro Auto prioritization of To-Do
MLO automatically sorts the tasks in To-Do based on user input.
Pro Best for GTD
Excellent for organizing in the GTD style of David Allen.
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 No web client
It would be great if they developed a web-based client.
Con No linux and mac client
There is support for Windows, iPhone, iPad, and both Android phones and tablets.
Con Expensive one-off cost, slow in releasing free updates
MLO does have quite a high price. However, this is a one-off price (per major version), so is much cheaper than web-based, subscription apps. The cloud synch feature, if you choose to have it, is low cost, so overall costs are low over the lifetime of the product.
Although the app is very solid and reliable (even for beta testers like me), updates And requested features can be long in development.
Con No support for previous versions
Con Complicated to start with
It needs some brains to set it up.
