Comparison

Supernotes vs SA_agent

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Supernotes

Organize your thoughts and ideas with a fast, lightweight note-taking app. Create visually rich notecards with Markdown and LaTeX support, enhanced by AI writing assistance. Build interconnected knowledge networks and share them seamlessly.

Highlights
  • Shareable Markdown notecards
  • AI writing assistance
  • Bi-directional card linking
  • 2D/3D graph visualization
  • Spaced repetition flashcards
  • Real-time collaboration
  • Offline support
Features
Read full description

Free your thoughts with Supernotes, the fast, lightweight notes app. Write beautiful notecards that are perfect for personal, work, and educational use – all your ideas, meeting, and lecture notes at your fingertips. CREATE NOTECARDS THAT POP Tired of scrolling up and down long notes? Break down your ideas with Supernotes notecards – keeping you organized. Add colors, tasks, bold, italics, lists, equations, images, code snippets, and more. Want more? Connect a bluetooth keyboard, and harness the full extent of our Markdown and LaTeX editor. POWER UP WITH AI Try our thoughtful approach to AI. We call them Superpowers that help automate arduous tasks, such as tagging your cards, as well as train you to become a better writer, highlighting grammatical errors and offering rewording suggestions. ORGANIZE YOUR KNOWLEDGE Categorize your notecards using tags, reference popular cards with card links, and pop related notecards inside a parent card to build a network of interconnected knowledge. Multi-select, and edit notes in bulk, in the Table layout. Visualize your notes in both 2D and 3D graph layouts, helping you discover existing and new connections. Build your dream Zettelkasten system. REMEMBER WHERE YOU WROTE THEM Only on Supernotes, view all your notecards on a geographic Map. Opt-in to location sharing to automatically assign locations to notes when you create them to see where you had the most inspiring ideas or the most meetings! Or manually assign locations for trips, restaurant recommendations and more. BUILT-IN SPACED REPETITION Jump into Flashcard layout to instantly learn any of your notecards. Using our FSRS algorithm, cram your notes before an exam or learn them at a relaxed pace. We will show which notecards are due at the right times so you can learn as efficiently as possible. SHARE WITH FRIENDS Stop taking screenshots of notes – just share a notecard to generate a secure link. That note will be instantly accessible to anyone (even if they don't have Supernotes)! Add friends, classmates, or teammates on Supernotes to instantly share new notecards with each other, and see each other's cursors editing in real time. ON ALL YOUR DEVICES, OFFLINE OR ONLINE Pick up where you left off with our iPhone, iPad, and Mac apps. Keep taking notes wherever you are, even if your connection drops, with seamless offline support. FEATURE COMPLETE - Universal Search & Filters - Markdown / LaTeX Editor - Bi-directional Card Links - Calendar Heatmap - Assign Dates to Notes - Four Day & Night Themes - Share to Supernotes Extension - Export to Markdown, JSON & PNG - Keyboard Shortcuts - 24/7 Customer Support FREE FOR LIGHTWEIGHT USE Discover everything Supernotes has to offer with our generous free Starter plan; explore all the features and earn 100s cards. Or upgrade to the Unlimited plan for unlimited cards, feature previews, and more. Prices may differ depending on your location, and subscriptions will be charged to your App Store payment method. Your subscription will automatically renew and you may cancel at any time. Privacy Policy: https://supernotes.app/privacy Terms & Conditions: https://supernotes.app/terms

About

SA_agent

Features
Read full description

SA_agent is a Safari Web Extension for researchers who use Google Scholar on iPhone and iPad. It adds local journal context to supported result pages and provides optional AI-powered research tools through an Apple-linked credit balance. RESEARCH WITH LOCAL JOURNAL CONTEXT • See color-coded SJR quartiles and available JCR, CAS, CiteScore, indexing, and discipline-list fields beside supported Scholar results. • Search more than 35,000 bundled journals by title or ISSN without contacting a journal-ranking service. • Choose, reorder, and hide ranking badges to match your workflow. • Import a private custom journal list from CSV or JSON and display its ranks alongside bundled data. Custom datasets stay in extension-local storage. OPTIONAL AI RESEARCH TOOLS • Create focused paper summaries from Scholar results. • Choose a 30–1,000-word target and Academic, Formal, or Casual tone. • Regenerate or improve a summary, then copy it or download it as text. • Connect an optional Zotero Web API account, format up to 50 library items in APA, Chicago, MLA, or Harvard style, and generate a downloadable literature-review draft. • Review the estimated credit cost before generation. SA_agent blocks the request when the available balance is below the estimate. APPLE-LINKED CREDITS Open the containing SA_agent app to buy, restore, or refresh Apple-linked credits. The Safari extension reads the account through native messaging, so you do not need to paste an extension token. Journal rankings, Journal Search, and custom datasets do not require credits. AI summaries and literature reviews require an internet connection and sufficient credits from Apple in-app purchases. PRIVACY BY ACTION Journal matching, ranking lookup, and custom datasets are processed locally. Paper text or formatted Zotero citations are sent to the SA_agent service only when you explicitly request AI generation. Optional Zotero credentials are used for Zotero API requests. SA_agent does not sell personal information, collect general browsing history, or run advertising analytics. See the Privacy Policy for complete details. GET STARTED 1. Open SA_agent and buy or restore credits if you want to use AI features. 2. Enable the SA_agent extension in Safari and allow access to supported Google Scholar pages. 3. Open the extension Options page to choose badges, search journals, add a custom dataset, or connect Zotero. Availability of optional ranking fields depends on the licensed data included in the installed release. SA_agent is intended for academic research workflows. Google Scholar and Zotero are trademarks of their respective owners. SA_agent is not affiliated with or endorsed by Google Scholar or Zotero.

Screenshots

Supernotes4 screens
SA_agent4 screens

Verdict

The call

The clearest difference is device support: SA_agent at 5 against Supernotes's 3. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Supernotes sells 3 in-app purchases, starting at $11.00 per month and SA_agent sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Supernotes ships an update monthly, SA_agent every 3 weeks. The most recent releases landed on October 18, 2026 and October 8, 2026 respectively.

Scorecard1 real difference · 9 level
Supernotes versus SA_agent: the parameters behind the verdict, then further details
ParameterSupernotesSA_agent
PriceFreeFree
Rating4.8 (122 ratings) — better—
Positive reviews91.2% of reviews—
Number of ratings122 — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac, Vision Pro — better
Requires iOS15.015.0
Further details — not scored
Size106 MB6 MB
Age rating4+4+
DeveloperSupernotes鹏帆 常

Bugs and requests

Supernotes

Reported bugs

2 issues
  • Blank white screen on app/web browser
  • App doesn't work on iOS 15.4.1

Requested features

6 requests
  • iOS widgets for home and lock screens
  • Alert for note space limit and prompt to edit/continue as journal entry
  • Better image and video viewing
  • Control center button
  • Split screen functionality
Show 1 more
  • Ability to create groups or collections of notes

SA_agent

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Supernotes

Subscriptions3
  • Supernotes Unlimited (1 Month)$11.001 Month
  • Supernotes Unlimited (Promo)7 Days trial$69.001 Year
  • Supernotes Unlimited (1 Year)$99.001 Year
3 purchases

SA_agent

One-time3
  • SA Agent Credits$0.99
  • SA Agent Credits$4.99
  • SA Agent Credits$19.99

Questions

Is Supernotes free?
Supernotes is free to download, with in-app purchases available.
Is SA_agent free?
SA_agent is free to download, with in-app purchases available.
Do Supernotes or SA_agent have ads?
Neither Supernotes nor SA_agent shows ads.
Which is updated more often, Supernotes or SA_agent?
Supernotes ships an update monthly, and SA_agent every 3 weeks. Most recently, Supernotes was updated on October 18, 2026 and SA_agent on October 8, 2026.

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