Simple Todo List is easy to use, handy to have, and simple to install. There are a couple of caveats.

How do you add a to-do list to Slack? I get asked this a lot, and it never fails to disappoint when I have to answer that the feature isn't built into the service. However, there are third-party apps that can be added to your Slack Workspaces to bring to-do lists into the picture. One such app, calledSimple Todo List , is easy to use, handy to have, and simple to install.

There are, of course, a couple of caveats to this. First, you must be authorized to add third-party apps to your Slack workspace. You'll have to ask your Slack admin to add the app if you're not authorized. 

Also: How to use Slack's 'Saved items' feature (and why you should)

Second, this third-party app isn't free. However, it does offer a 14-day trial. Once that trial expires, you'll have to pay either$3.99/month or$39.99/year for the app. Given what you get for this, it's a pretty sweet deal.

With that said, let's install Simple Todo and see how it works.

How to install Simple Todo List

What you'll need: To add this to-do list app to Slack, you'll need a valid Slack account, the Slack app installed, and a Workspace that allows you to install apps. 

1. Log into your Slack Workspace

The first thing you must do is log into your Slack Workspace. The easiest method for this is to log into the web-based version of Slack.

2. Locate the app

Once you've logged in to your Slack Workspace, hover your cursor over Apps in the left navigation and click + when it appears. 

Also: How to locate entries for specific dates in a Slack thread

In the resulting window, type Simple Todo List in the search bar.

Figure 1: Locating the Simple Todo List app in the Slack app market.

Also: How to schedule Slack messages (and why you might want to)

3. Install the app

You should see an Add button associated with the app (I've already installed it, so in my example, the add button is missing). After clicking add, you'll be directed to the app page, where you'll need to click Add to Slack, which will then require you to click Allow to give the app permission to access your Workspace. 

And that's it for the installation.

How to use Simple Todo List

Using Simple Todo List is very easy. The one thing you must understand about this app is it doesn't allow you to create multiple to-do lists. You get one list and you can add as many items to it as you need.

1. Add an item to your to-do list

Let's say you want to add "Call Boss" to your to-do list. For that, go to any Slack channel and type the following in the Message section:

/todo Call Boss

Now, let's add some more items with the slash commands:

/todo Finish Project X/todo Buy gift for Olivia/todo Email contributors/todo Dance it out

2. View your to-do list

After you've added items to your list, you can view it with the slash command:

/todo

You should see all of your to-do items (Figure 2).

Figure 2: Our items have been added to the to-do list.

3. Marking to-do items

If you click the