When comparing Simplenote vs Remember the Milk, the Slant community recommends Remember the Milk for most people. In the question“What are the best cross-platform task apps?” Remember the Milk is ranked 19th while Simplenote is ranked 39th. The most important reason people chose Remember the Milk is:
Smart lists are configured using Remember the Milk's syntax, making it very customizable.
Specs
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Pros
Pro Very simple and clean interface
Simplenote takes a minimalist approach to its interface. There are no toolbars full of formatting options or extra features like notebooks to group notes. The entire desktop interface consists solely of a sidebar with your tags and trash filters, the list of existing notes with search, a button to add a new note and a simple view for looking an existing note or writing a new one.
Pro Geared towards fast usage
Unlike alternatives (such as Evernote) that are laden with features, Simplenote is fast to use and sync. Reviews from the Verge, Lifehacker, and a variety of other sources all describe using the Simplenote apps as very fast. While it may not be as feature-rich as other apps, the responsiveness of the app and simple interface keep it easy to use while never slowing down the user when they need to quickly take a note.
Pro Works offline
Users can edit and create documents offline, can then sync their content the next time they are online. This way a user can work even when there's no data connection without the worry of losing work.
Pro Desktop app is open source
The desktop version of Simplenote is hosted on the GitHub and since it is open source, it can allow developers to fork the code in order to improve the app.
Pro Can export your data
The program enables exporting of notes as text documents.
Pro Collaborative features
Notes can be shared with others or worked on collaboratively.
Pro Open Source
All of the Simplenote apps are open source and ready for your contributions! You can find the source on GitHub:
iOS: https://github.com/automattic/simplenote-ios
Android: https://github.com/automattic/simplenote-android
macOS: https://github.com/automattic/simplenote-macos
Electron (Windows and Linux): https://github.com/automattic/simplenote-electron
Pro "Time machine" style revision control on the notes
Each edit of a note is saved in order to allow the user to go back to a previous version of a document. This way, if mistakes are made or something is deleted, you can go back to the previous version without any hassle.
Pro Wide range of great clients with great sync
Official native apps are available on popular platforms such as Android, iPhone, iPad, Kindle, OS X, Windows and Linux. Open-source clients extend this support even more widely to various other platforms, such as webOS and the BlackBerry PlayBook. These apps embody the core philosophy of Simplenote: minimalism and focus on the note taking.
There are multiple unofficial clients (including the excellent Notational Velocity and NValt, a fork of the app with markdown support and other goodies.)
Pro Markdown support via web interface
There is support for Markdown when using the web app. This can be convenient for those who want to use Markdown in a particular note.
Pro Linux client available
Pro Excellent iOS app
Pro Excellent desktop client in the form of nvAlt
Pro Has its own syntax for programming smart lists
Smart lists are configured using Remember the Milk's syntax, making it very customizable.
Pro Semantic shortcuts
Remember The Milk has a list of semantic shortcuts that allow adding tasks and task options faster.
Pro Many features already working in the free version
The majority of commonly used features are available for free. The pro version adds increased functionality such as advanced sorting, mobile push notifications and sharing permissions.
Pro Excellent cross platform support
Whether you depend on an iOS, Windows or Android phone; Google Calendar or Outlook; Evernote or Twitter: RTM has an app or extension for you.
Pro Powerful query language
Query language can be used to build your own GTD-based system, with tags and lists and queries. Such as system can be used for private life and work alongside several simple lists without things getting mixed up.
Pro Location-based notifications
You can set locations for each task (for example a specific store, or a general location like 'near the beach' for shell collectors), and RTM will remind you when you are near or in that location. This can help keep your daily list uncluttered and remind you of errands you might have forgotten.
Pro Tasks may have additional options
Extra options such as how often it repeats, the due date, and the location.
Pro Support of a "start" date
A start date can be set which can be used with smartlists or to set a reminder.
Pro Lists can be shared
Share lists with other Remember The Milk users, or with iCal and more. Shared lists can be collaboratively updated. This makes it great for teams or just to share progress with others.
Pro Quickly add rich text
Remember The Milk offers Smart Add – shortcuts that allow you to quickly add advanced information to a task. For example, you can quickly add a due date, set the priority level, add a tag, set repeat times, add URLs, and add notes to your tasks. For the full list, check out How Do I Use Smart Add?
Pro Manual sorting
Manual sorting is available on both the web app and android, allowing prioritization of tasks. This can be particularly useful for shopping lists, where you can put all the meat together, and all the cheese together etc. to make it easier to skim through when you're in the store.
Pro Nice Android Widget
Compared to competitors like todoist, the widget doesn't use too much space.
Pro Really, really cool support
They react within hours, and they actually keep track of your issue.
Pro Support for keywords to set due/start date, add to list with one line of text
There are special characters which open a box so the user can select predefined values or a calendar picker.
Pro Lightning fast sync
Syncs quickly across all your devices and platforms.
Pro Syncs with Evernote
Not only syncing, it's more of a "linking" with a two-way synchronization. Changing the title of a note in Evernote will update the title in Remember the Milk. So far, Remember The Milk is the only to-do app with a feature like this.
Pro Add tasks via e-mail
You can add tasks to Remember the Milk via email easily once you get the hang of formatting the messages.
Pro Twitter integration
The Twitter integration is excellent and allows for many types of automation.
Cons
Con No note encryption at rest
Notes are encrypted in transit, but remain unencrypted on Simplenote's servers.
Con Limited ways to reorder notes
You are able to sort your notes alphabetically, date modified, or by last created. There is no way to drag and drop the notes to create a custom order.
Con No reminders
You cannot set reminders to revisit a specific note or complete a task.
Con No support for file attachments
Simplenote doesn't provide support for embedded attachments. This can limit the use for some as many other note-taking apps do support this type of feature.
Con Search is limited to one tag
There seems to be no way to find notes that have both tag X and tag Y. This isn't a big deal until you have a large library of notes, and want to cross-search for two things at the same time to vastly narrow down your search.
Con No way to import notes from anywhere
Con Web access only for updated browsers
They recently removed support for older browsers, and it's not working on the latest version of Waterfox. You need an updated version of a well-known browser.
Con No 32-bit version
Con The search function doesn't see tags
If you search for 'foo' you won't find notes with tag foo. In that regard, tags are completely isolated from the search.
Con No way to bulk-apply a tag
This is a typical workflow action in other apps: Do a search, multi-select notes among the matches, then apply or de-apply one or more tags to all these notes at once.
There's no way to do this in Simplenote. The only bulk operations are Delete and Pin-to-top.
Con No notification when changes made on a shared note
Currently, there is no way to be alerted when a change is made by another contributor on a shared note.
Con Save-to-disk feature is poor
The only way to download your data off Simplenote is via a "download zip" feature that unfortunately loses all the semantic structure of your data (tags, for instance).
Con No integrated social media sharing
The only way you can share notes with others is with a link you're given when you publish your note. There is no integrated social media sharing if you directly want to post your note to Twitter, Facebook, etc.
Con Lack of color impacts usability
There are two themes available, the default theme and a dark theme.
Both use only the single solid color (either white or black) for the background, so there is a lack of visual cues to separate what you're looking at.
Con Subtasks only available in Pro version
Subtasks can break a longer to-do item into discrete tasks, helping you keep tabs on your progress.
Con Bad UI redesign
The web app takes up too much screen real estate and uses a half-screen format that requires a wide screen. The task edit screen is clunky. It still has UI bugs one year in. You can't complete tasks from the UI.
Con Free version lacks features
Mobile reminders, subtsaks, offline mode, Microsoft Outlook sync, priority, and more features are limited to the paid version ($39.99/year). To see the full list of restrictions, check out this page.
Con Does not support attachments
Cloud storage was recently added as a pro feature.
Con Cannot add task in notification bar
There is no pull down option to add a task in the notification bar.
Con Ugly icon
The goofy cow image does not fit well with a professsional office environment.
