Simplenote VS Opal

Compare Simplenote VS Opal and see what are their differences

Rating: 3.5 · 2 reviews
Pricing: Open source

Rating: 0 reviews
Pricing: Freemium Free trial $27 / Monthly (Core Essentials, 1,000 items, 5 GB storage, 25MB file uploads)

ReleasePad

Changelog software that turns GitHub commits into release notes your users actually see — inside your app. Built for founders and teams who ship fast. sponsored

Which is more popular?

Based on our record, Simplenote seems to be more popular. It has been mentioned 83 times since March 2021.

social mentions: 83 vs 0
Note Taking popularity: 100% vs 0%
alternatives listed: 240+ vs 14

Base details

Website, pricing, platforms and company facts side by side.

	Simplenote	Opal
Website	simplenote.com	opalrecall.com
Pricing	Open source	Freemium Free trial $27 / Monthly (Core Essentials, 1,000 items, 5 GB storage, 25MB file uploads) Official pricing
Company	Startup from the United States	Startup from the United States · 1 - 9 employees · 2025
Listed in	Note Taking Task Management Project Management Personal Notes +1	Knowledge Management Note Taking Productivity Knowledge Base Document Management Document Management System Task Management Todos Project Management Notes +7

About Simplenote and Opal

In their own words, as submitted to SaaSHub.

Simplenote

Opal

No description of Simplenote yet.

You remember where things are, not just what they're called. Manage your notes, documents, and important files on a visual, infinite canvas. Organize your draggable content spatially on a digital desk where everything remains visible, what's important stays top of mind, and whatever you need in...

Features and specs

What each product offers, as listed by its team.

Simplenote 6 features

Opal 14 features

Ease of Use
Simplenote offers a very straightforward and minimalistic interface, making it easy for new users to pick up and start using immediately.
Free of Cost
Simplenote is completely free to use, which makes it an attractive option for budget-conscious users.
Real-time Sync
Notes are automatically synchronized across all devices in real-time, providing a seamless experience across multiple platforms.
Multi-platform Support
Simplenote is available on various platforms including iOS, Android, Windows, macOS, Linux, and through a web browser.
Version History
Simplenote provides version history for notes, allowing users to revert to previous versions if needed.
Markdown Support
Simplenote supports Markdown, enabling users to format their notes with ease.

Possible disadvantages

Limited Features
Simplenote’s minimalist approach means it lacks some advanced features found in other note-taking apps, such as rich-text formatting, attachments, and integrations.
No Offline Access
Although notes sync seamlessly online, Simplenote has limited functionality without an internet connection, especially on the web version.
Security Concerns
Simplenote does not offer end-to-end encryption, which may be a concern for users who prioritize security and privacy.
No Task Management
Simplenote is focused solely on note-taking and lacks built-in task management features such as to-do lists and reminders.
Limited Customization
Users have limited options for customizing the appearance and organization of their notes.

Spatial Knowledge Management
Store your notes & documents, drag them around, and zoom and pan an infinite canvas, like a big desk, so you can see everything in context
Block Editor for Docs & Notes
Author content in a WYSIWYG block editor with markdown under the hood and copy-paste & drag and drop support for images, media, and files.
Internal Item Links
Build your knowledge base, cross-reference standard operating procedures (SOPs), or just connect ideas with clickable internal links that open your other docs & notes
Binders
Stack similar and repeating content in binders or use them to archive old content to keep your workspaces clutter-free
Fences
Spatially organize projects and similar content in draggable, resizable fences that provide unique work zones for different projects
Open Multiple Items
It's much easier to make comparisons, cross-reference information, and get a clearer picture of your work when you can see it all at once and drag and drop content from one open item to another.
Sharing
Share content with anyone, configure 4 levels of permissions (view, edit, share, delete shares), and collaborate in real-time on notes and documents
Opal API with AI Agent Skill
Programmatically manage your Opal content through the API or give your AI agents view or full access to create and manage content for you
AI Transcription Integration with CRUSH
Connect your [CrushTheMemory.com](http://CrushTheMemory.com) device to store your recordings and transcriptions as Opal notes or documents and map your CRUSH folders to fences, binders, and/or workspaces
Drag and Drop Files
Store PDFs, images, video, documents, or any file as File item types on your workspaces or as rich media embedded in notes and documents
Export Content
Export your content as HTML, markdown, or PDF
Publish to the Web
Publish content as external web pages for anyone to view without an Opal account
Bookmarks & iFrames
Bookmark links (that you can take notes on) and embed iframe content (like Google Docs) to view and edit while in Opal
Zero Nonsense Task List
Set the date (or default to "today") and create 10 tasks on the same day in seconds with zero clicks, sorted stalest first, that connect to your notes & docs. One-click dismissal.

Analysis

An editorial look at what each product does well and who it suits.

Simplenote

Opal

Overall verdict

Simplenote is a great choice for anyone looking for a straightforward and efficient note-taking app. Its minimalistic design and cross-platform availability make it particularly appealing to users who prioritize functionality over complex features. However, it may not be suitable for those who require extensive formatting options or integration with other productivity tools.

Why this product is good

Simplenote is highly regarded for its simplicity and ease of use. It offers a clean user interface that allows users to quickly jot down notes without any distractions. The app is available across multiple platforms, including iOS, Android, Windows, Mac, and Linux, with seamless sync across devices. It also supports features like note sharing, version history, and markdown support, making it versatile for both personal and professional use.

Recommended for

Individuals who prefer a minimalistic and distraction-free note-taking experience.
Users in need of a lightweight app for quick notes and lists.
People who want a note-taking app with cross-platform compatibility and seamless syncing.

Overall verdict

Opal (opalrecall.com) is a solid choice for individuals and teams looking for a privacy-focused, AI-powered tool to capture, organize, and recall information such as meeting notes, screen activity, or personal knowledge, though it may still be maturing compared to more established competitors.

Why this product is good

Combines AI search with personal knowledge management to help users quickly retrieve past information
Offers privacy-conscious design, appealing to users cautious about data security
Simplifies capturing screen activity, notes, or meeting content in an organized, searchable format
Actively developed with a focus on productivity and reducing time spent searching for information
Provides a clean, user-friendly interface suited for both individuals and small teams

Recommended for

Professionals who need to quickly recall meeting details or research
Teams looking for lightweight knowledge management tools
Individuals concerned about data privacy in AI-driven apps
Remote workers who rely on digital notes and screen captures for productivity
Users seeking an alternative to bulkier enterprise knowledge management systems

Videos

Walkthroughs and reviews on video.

Simplenote 2 videos + Add

Opal 4 videos + Add

Simplenote Review

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100

Simplenote

Opal

100% 100%

0% 0%

100% 100%

0% 0%

100% 100%

Questions & Answers

As answered by people managing Simplenote and Opal.

What makes your product unique?

Opal's answer:

All your content is on a visual, infinite canvas desk. Notes, documents, files, etc. are draggable icons that you can organize spatially because we remember WHERE things are, not just what they're called. Opal keeps your work in sight so your brain never drops it.

Why should a person choose your product over its competitors?

Opal's answer:

When content is spatially organized, you stop losing content buried under folders, hierarchies, categories, and menus. Your brain begins to fire differently, sparking new ideas and spotting links, patterns, and opportunities it used to miss. - You connect ideas across clients, projects, and ideas - You Stay In Flow, No Context Lost, And No Rhythm Broken - You make faster, sharper decisions because every note and project is visible at once - You reuse your best work instead of rebuilding it from scratch - You eliminate the need for text-based searches and can find things even if you can't remember what you named them

How would you describe the primary audience of your product?

Opal's answer:

Solopreneurs, freelancers, people juggling multiple clients, visual thinkers, neurodivergent thinkers, and people who've quit productivity apps.

What's the story behind your product?

Opal's answer:

Something was lost when everything went digital. Having used various tools for years, I eventually discovered a fatal flaw that nearly all knowledge management tools suffer from: their attepts to organize content became the means by which content got buried. Over time as more content gets added, it became harder to find things, especially when you can't remember what you called it.

We remember things in physical space because we see them all the time and register their existence subconsciously, even if we don't need them in the moment. For example, if you asked where my keys were, I could tell you instantly. This spatial reasoning and thinking effect is severely hindered in the digital space.

After enough frustration, I decided to do something about it: build a spatial knowledge management tool that lets you see everything all at once. As you pan and zoom around your workspace, you are registering the existence of things even when you don't need them in that moment. That changes everything over time. Organizing becomes less about categorization, labeling, or hierarchy, and more about placement and "where I left it". Your brain remembers where far more easily than what. This is why I built Opal.

Which are the primary technologies used for building your product?

Opal's answer:

Web-based application built on NodeJS, Express, Form.io (MongoDB), and JavaScript.

User comments

Share your experience with using Simplenote and Opal. For example, how are they different and which one is better?

Reviews and articles

External articles and on-site reviews we used to compare the two products.

Simplenote 3.5 · 2 reviews

Opal no reviews yet

Basic
SaaSHub review

· Jul 2026

I've started with Simplenote years ago, at the time I was happy but it became clear pretty quickly that it was too basic. But to be fair, it's basic and free. Keep in mind it's unencrypted.
11 Best Google Keeps Alternatives for 2024
upbase.io · Apr 2024

While SimpleNote is completely free to use, it offers a subscription option called Simplenote Sustainer for those who want to support the app. Sustainer costs $19.99 per month or $199.99 per year.
20 Obsidian Alternatives: Top Note-Taking Tools to Consider
clickup.com · Feb 2024

Simplenote is an excellent alternative to Obsidian thanks to its simplicity and clutter-free interface. It also features powerful syncing functionality to help you access your notes anytime.

We have no reviews of Opal yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Simplenote 83 mentions

Opal 0 mentions

Ask HN: What will the WordPress meltdown mean for Automattic's other products?
I've been looking to migrate away from https://simplenote.com to something else and I've been dragging my feet. However, what's happened in the past 2 weeks with the CEO was the push I needed to resume looking for another solution. I've... - Source: Hacker News / almost 2 years ago
Ask HN: What note taking app do you use and why?
I use https://simplenote.com - Syncs across multiple platforms. - Plaintext based (with MD support). - Search + edit UI similar to https://notational.net and https://brettterpstra.com/projects/nvalt - Simple to publish/share notes - Free... - Source: Hacker News / about 2 years ago
Anybody have problems with bookmark organization like me?
Bookmarks serve two purposes: - Quick access to commonly used links. For this, I built https://multi-launch.leftium.com - Saving a link for future reference. Often I want to also save plain text notes for future reference, so find myself... - Source: Hacker News / about 2 years ago

Tracking Opal since Apr 2026.

Alternatives to Simplenote and Opal

When comparing Simplenote and Opal, you can also consider the following products.

Evernote
Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.

Compare Evernote to Simplenote or Opal:

Evernote vs Simplenote Evernote vs Opal
Notion
All-in-one workspace. One tool for your whole team. Write, plan, and get organized.

Compare Notion to Simplenote or Opal:

Notion vs Simplenote Notion vs Opal
OneNote
Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.

Compare OneNote to Simplenote or Opal:

OneNote vs Simplenote OneNote vs Opal
Google Docs
Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

Compare Google Docs to Simplenote or Opal:

Google Docs vs Simplenote Google Docs vs Opal
Google Keep
Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.

Compare Google Keep to Simplenote or Opal:

Google Keep vs Simplenote Google Keep vs Opal
Miro
Join Millions of users that collaborate from all over the planet using Miro. Experience the power of the #1 visual workspace for innovation. More than 100M users and 250,000 companies are collaborating on the canvas.

Compare Miro to Simplenote or Opal:

Miro vs Simplenote Miro vs Opal