When comparing Notebooks vs Notion, the Slant community recommends Notion for most people. In the question“What are the best Evernote alternatives?” Notion is ranked 3rd while Notebooks is ranked 30th. The most important reason people chose Notion is:
Even the right-click menus on the web are the same as the app.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro You control how to sync the data - better privacy
Services like Paper (Dropbox), Evernote, Google, OneNote (Microsoft)... and many others, keep your data in format they can read when it syncs with their servers. That means their admins can read your data (see recent scandal with Evernote privacy policy), they can be compelled to give it to law-enforcement and, if hackers manage to breach their servers, the hackers can read it too.
With Notebooks, you choose how to sync your data, which means that you can do it using a privacy-friendly service, such as SpiderOak, Tresorit, Sync.com or iDrive, which sync your data using end-to-end encryption. This means that although they use their servers to sync your data, their servers store an encrypted version to which the service does not hold the key. Your data stays private.
Pro Powerful and grows according to your needs
Notebooks have many features including WYSIWYG editing and Markdown support. While these may be considered power-user features, they are there if the user ever needs them. This makes the app versatile, as it can appeal to the user who just wants to take notes just as much as the user who needs to edit complicated documents.
Pro No recurring fees
There are no reoccurring fees connected to this app: pay once for the platform you would like to use it on, and that's it.
Pro Available on multiple platforms
As an Evernote alternative, Notebooks is available on iOS as well as OS X and Windows operating systems. This makes for a convenient way to manage one's notes or tasks on multiple devices
Pro Full-featured on desktop, mobile and web
Even the right-click menus on the web are the same as the app.
Pro Unlike anything else
One of the most complete applications one can use to build a personal dashboard (or professional) and migrate all other services to it. No more calendar, task, notes, financials, lists, writing and wiki apps, just Notion.
Pro Pages within pages within pages, to infinity
You can have a ridiculous amount of information within a single note. Look at how it works, you'll be surprised!
Pro Flexible contents storage and organization
You can upload files and embed online stuff in any hierarchical structure using pages, toggle lists, etc.
Pro Highly visual, with icons next to every new page and so on
This feature makes it very easy to find certain notes and such. And great for visual people as well. You could also add images as icons instead, if you like.
Pro Blocks offer incredible flexibility
The basic unit of organization in Notion is the block, which can be a chunk of text, an image, a bullet point, or even a link to another page. Each page consists of these blocks, which can be easily reorganized, moved to other pages, converted into other content types, or generally manipulated in many useful ways. Because of blocks, restructuring information in Notion is way easier than in any other wiki or notebook app.
Pro Does a great job with both notes and to-dos
To-dos in Notion aren't just dot point lists. You can drag and drop them into columns just like Trello (Kanban style), you can have sub-tasks, and you can easily mark things off as completed so they are no longer in your way. Notes are also powerful, with proper formatting and ways to manage and search for them, which makes it a great Evernote alternative.
Pro Cross platform
Works with Android, iOS, Windows, & Mac OSX.
Pro Awesome for wikis
You can easily start writing a bunch of web pages, share it with co-workers and choose whether to publicize or keep your contents private. It's also easy to hyperlink pages.
Pro Amazing view flexibility
You can create different views for a page's content and easily toggle between kanban, table, etc. (As long as the content is able to allow different views.)
Pro Quick and effective search
Just type in a word and you'll have results in no time at all.
Pro Attach files in tables
You can attach files in table cells, which is a feature missing in most spreadsheet-like applications.
Pro Great spreadsheet functionality
You can use calculation/formula, links, attachment, inter-referencing of data from other pages or tables, embed documents and images in the table cells.
Pro Renders Markdown Syntax
Add code blocks, Headers, bullet point, numbered lists, or To-Do boxes by typing using Markdown Syntax (instead of klunkily moving the mouse to formatting boxes)
Pro Less headaches when editing pages
Lets you restore your page to a past edit. Also works with sub-pages and databases. Though it is worth mentioning that it's a paid feature.
Cons
Con No Linux support
Not able to install on any Linux-based OS.
Con Each platform app has an individual cost
Say if you want to use the desktop app on OSX, that will have an individual cost. This cost does not carry over if the Windows app needs to be used as that has its own cost as well. Basically you have to pay for each platform you want to use this app on. While there are no recurring fees, the individual cost for each platform can add up.
Con Cloud sharing has to be done with a third party
Notebooks does not provide its own synchronizing and back-up. The user will therefore need to use a service (such as Dropbox) which has built-in support, but which is a service not connected with the creators of this app.
Con Not very fast using native apps
Can take time if you're switching between lots of pages often as it needs to load the data each time
Con Not always very intuitive
Column filters are not that intuitive to apply.

Con No true backup
True backup can only exist if it's automated and easily recoverable. Else, it's just an outdated copy or useless scrambled data.
Con Designed with teams in mind, and less formatting than Evernote
Evernote may be more individual-oriented and has more formatting and such options available, but whether that affects you is down to personal preference. Try both and see which you prefer.

Con Not yet a new protocol, as it could be! (or could it?)
Think of scuttlebutt or email. the best Evernote alternative would be a "web 3.0" of sorts. Something that would be just a simple file added to a computer and automatically replicated to other computers along with a website and any company could easily pick up the concept and make their own hosting, including some awesome google drive/host of sorts.
