Website for sale

Current price No Reserve

$1,950 USD

2 days left

Productivity to-do list app with 2,000 monthly active users

Flask.io is a to-do list web application that enables users to easily create and share a list of tasks in seconds. No sign up required. No downloads needed. Extremely user friendly.

At a glance ?

Touch a value for a description

Site Type
Ruby on ​​Rails
Site Age
4 years

Traffic ?

Page Views
Unique Visits

Financials ?

No financial data has been provided for this website

Traffic ?

Uniques Page Views
Mar 17 2,264 23,776
Feb 17 1,999 19,236
Jan 17 2,209 22,765
Dec 16 2,582 32,869
Nov 16 2,368 21,185
Oct 16 1,984 13,407
Sep 16 2,258 13,551
Aug 16 1,912 11,517
Jul 16 1,460 10,508
Jun 16 1,730 10,285
May 16 1,720 11,047
Apr 16 1,573 9,665

Traffic Health ?

Pages / Session
Avg. Session Duration
Bounce Rate

Top Channels ?

Page Views % of Total
Direct 18,155 76%
Referral 3,190 13%
Organic Search 2,115 8.9%
Social 316 1.3%

Top Countries ?

Page Views
United States 12,638
France 1,347
United Kingdom 698
Germany 552
Brazil 351

Seller's Notes

Flask.io is a to-do list web application that enables you to easily create and share a list in seconds. No sign up required. Extremely user friendly. 

There are a lot of to-do list apps and project management tools available. The beauty of Flask.io is you can create your list and share it with friends in seconds, who can then access it via desktop and mobile. This is why our users love it and get hooked on their first time usage.


It has a responsive mobile design so it is accessible from anywhere and no barriers to entry. 

  • Create todo lists
  • Add as many tasks as you like
  • Re-order, edit and delete tasks
  • Tag and star tasks
  • Share your lists for others to access
  • Access from anywhere on any device
  • Sign up optional
  • No download required to get started
  • 7 Character domain name

Vibrant community of users and feature requests as you can see on UserVoice.  

----Users and Traffic----

  • 5,700 sessions in March 2017
  • 2,200 users in March 2017
  • 10:39 average session duration in March 2017

These are great organic numbers and consistent month to month.

2,000+ active monthly users. 5,000+ registered users. 40,000+ lists created.

You can see a map of these users in Intercom here.

Lists well in Google for organic key words including:

  • “online to do list”
  • “share list online”
  • “to do list maker”

See the detailed breakdown of search rankings on SEMrush.

----Flask.io Around The Web----

Flask.io has received a lot of attention from top quality publishers. To name a few:


  • Ruby on Rails application
  • Postgres database
  • Hosted on Heroku ($9/month)
  • Domain on Gandi ($35/year)
  • Other free tools: Cloudflare, Mixpanel, Google Analytics, Uservoice, Mailgun, Intercom

----Post-Sale Support----

  • I'll work with you and your developer(s) to transfer everything over and ensure it works (both locally and in production)
  • This will include the application, existing data, existing 3rd party tools, and the domain name (flask.io)
  • As everything is hosted in the cloud (e.g. Heroku, Cloudflare) it will be straight forward to transfer ownership over
  • The code base will be shared via GitHub
  • I'll share any graphic/visual assets that have been used for designs and branding
  • As the technology used is Ruby on Rails you (or your team) will need some Ruby on Rails experience if or when you intend to make changes and add features

----About Me----

I'm a web developer from San Francisco with 10+ years experience designing and developer web application software.

I made Flask.io as a side project to learn some Ruby on Rails skills and experiment with some third party tools. Now it has a vibrant community of active users and I believe with some time and focus this can be monetized and turned into a small business. I work full time for a software company so don't have the time to push this forward myself.

Site Info

Site Established ? January 2013
Built With ?
Google Analytics Detected ? No
More info: BuiltWith

Domain Info

Domain Registered ?
Registrar ?
More info: Wayback Machine and Whois

Site Uniqueness

Content Unique ? Yes
Design Unique ? Yes
More info: Plagspotter and Copyscape

SEO Presence

Pages In Google ? 41
MajesticSEO Inbound Links ?
SEOmoz mozRank ?
Alexa Rank ? 1,031,478
More info: SEOmoz and SEMRush


Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Tue, 18 Apr 2017 15:11:23 AEST

Uploaded a 2 minute video demo to Vimeo so you can easily see it in action.

JudetheObscure ( | $400 )
Wed, 19 Apr 2017 12:51:24 AEST

What are some more interesting things people are using this for? Seems like overkill for basic grocery lists and the like.

JudetheObscure ( | $400 )
Wed, 19 Apr 2017 13:07:27 AEST

Is there an admin panel?

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Wed, 19 Apr 2017 13:32:59 AEST

@JudetheObscure Yes there is an admin panel where you can manage all the lists.

The usage tends to be split 50/50 between using it at home and at the office. Lots of daily todo lists. Lots of office tasks and team projects. Teams use the color tagging to help assign to different people.

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Fri, 21 Apr 2017 10:41:03 AEST

Some people have asked how Flask.io can make money, or how I had planned to make money and why I'm not today.

When I created Flask.io it was a learning project. You can read the original launch blog post here (http://www.leemunroe.com/flask-todo-lists/). I followed that up with a blog post about always having a side project (https:[email protected]/side-projects-are-your-playground-a8d1fec5379d).

It has been great to see it organically grow over time (I haven't spent a dime on marketing or advertising) but I have other projects and interests that distract me from pushing Flask.io forward and adding the features I've wanted to add. I know there's someone who is better suited to do this.

Here are some ideas I've thought about but haven't executed on.

1. Paid Plans
There's a substantial user base here. There are both consumers and businesses. Some of the businesses are very reliant on the service for easily sharing information and tasks across teams. There are definitely users who would be prepared to pay for this as a monthly service.

2. Domain Name
I'm sure over time and with the right promotion or contacts you could get a good price for this short domain name, ".io" domains are very popular in startup world. It also has value from the backlinks we already have in place e.g. lifehacker.com

3. Custom Features
There are a lot of feature requests listed on UserVoice (https://flask.uservoice.com/forums/194854-feature-requests/filters/top). Some of which users and teams would pay for.

Just some ideas. Of course ideas are cheap and it takes execution to make it happen. Hope this is helpful.

Puertorico ( new )
Sun, 23 Apr 2017 02:24:05 AEST

Have you stopped the development on the site in 2013? Which version of Ruby on Rails does it use?

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Sun, 23 Apr 2017 07:18:54 AEST

@Puertorico Yes, I haven't added any features recently (here's the release timeline for anyone else interested http://flask.io/about), just some bug fixes and maintenance. The versions are Ruby 1.9.3, Rails 3.2.3.

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Sun, 23 Apr 2017 07:30:54 AEST

Some companies/startups/apps who are in the same space.

* todo.ly
* teuxdeux.com
* hitask.com
* wunderlist.com (acquired by Microsoft)
* trello.com (acquired by Atlassian)
* astrid (acquired by Yahoo)
* do.com (acquired by Salesforce)
* producteev.com (acquired by Jive)
* asana.com

SEMrush is a good source for related websites

Microsoft just launched their new todo service 3 days ago.
* https://todo.microsoft.com/en-us/
* https://techcrunch.com/2017/04/19/microsoft-to-shut-down-wunderlist-in-favor-of-its-new-app-to-do/

Px48x48 twiiter profile photo3
ccpr20 ( | $250 )
Tue, 25 Apr 2017 00:42:39 AEST

How many emails do you have? And an active user is defined as someone who has logged in at least once in the last 30 days? Thanks.

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Tue, 25 Apr 2017 02:16:01 AEST

@ccpr20 5,247 emails. The active users as defined by Google Analytics (see the active users attachment for an example and more info here https://www.optimizesmart.com/understanding-active-users-report-google-analytics/). For March 2017 this number was 2,194. Note that the way the service works does not require a login. So active users are not necessarily logged in.

ericbrown ( | $5.15K )
Thu, 27 Apr 2017 01:31:00 AEST

@hbkmunroe Have the users signed up for a mailing list? Meaning, do you have the 5247 user emails in something like Mailchimp or is that just the emails you've collected from users as part of the signup process?

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Thu, 27 Apr 2017 03:01:39 AEST

@ericbrown All user accounts are tracked in Intercom. So it is easy to (a) message all the users from Intercom or (b) export the list and import it into another tool like Mailchimp.

The service tracks each email that is sent when a user shares a list. There are roughly 3,000 emails in this list too which sit in the database. Not necessarily unique and likely cross over with the 5,247

djrv ( | $2.5K )
Thu, 27 Apr 2017 05:40:18 AEST

How's the quality of the code? Tests? What's the test coverage about?

Was a designer involved? Did you use a front-end framework like bootstrap or a theme, or was it from scratch (it looks like some premade components were used).

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Thu, 27 Apr 2017 07:20:09 AEST

@djrv There are no code tests unfortunately. The service is fairly simple so the code is very straight forward. I did all the design and development myself. No frontend framework. Custom theme. Using SCSS. Also uses jQuery and Coffeescript. I added an attachment which gives you a preview of what the codebase looks like. I know this doesn't give you a lot of detail but if you're familiar with Rails apps hopefully this adds a bit more transparency.

wiggy298 ( | $850 )
Thu, 27 Apr 2017 07:26:37 AEST

Can I have read only access to GA?
Email is [email protected]

DZstar ( | $1.33K )
Fri, 28 Apr 2017 04:44:23 AEST

Hi, do you have a mobile app for the service? And if no, how hard will be to make one?

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Fri, 28 Apr 2017 04:51:24 AEST

@DZstar There is no native mobile app. It is responsive and usable on mobile however. 20% of usage is on mobile today. Native Android app and iOS app are two of the top feature requests (see https://flask.uservoice.com/forums/194854-feature-requests/filters/top). You could easily wrap the current responsive web app with something like gonative.io, or you could use the REST API to build one yourself. Currently the API supports Creating, Updating, Deleting lists as well as Listing, Creating, Updating and Deleting tasks.

Px48x48 avatar 1412376424.2319542f276838a1b5.52899001
hbkmunroe ( | $1.8K )
Fri, 28 Apr 2017 04:54:04 AEST

@DZstar Here's a really quick test/example using GoNative. This demo took 2 minutes to put together. https://gonative.io/share/odqkzj

The Seller
Px140x140 avatar 1412376424.2319542f276838a1b5.52899001 hbkmunroe Lee Munroe
1 transaction totalling $1,800
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