Cubox vs Readwise

Cubox

• Readers who save articles, newsletters and web pages to annotate later
• People who want AI summaries and answers drawn from their own saved library
• Users who send highlights on to Obsidian, Notion or Readwise

Readwise

• Kindle and ebook readers who want to see their highlights again
• People who send reading notes to Notion, Obsidian or a similar app
• Readers who want articles, RSS, newsletters and PDFs in one app

Cubox

• The free basic account has a quota on saved content, and the vendor pages read do not say how large it is.
• The web pricing page offers annual plans only: Pro at $29 a year and Pro+AI at $49 a year. The US App Store listing also shows monthly in-app purchases.
• AI Insight and Ask AI need a paid membership and have usage limits; automatic insight is reserved for Pro+AI.
• The download page lists Mac, iPhone, iPad, Android and browser extensions; on Windows and Linux Cubox runs as a web app.

Readwise

• There is no free plan: a paid subscription is needed once the 30-day trial ends.
• Readwise Lite leaves out tags and notes, exports to note-taking apps, and the Reader app.
• Reader is not sold on its own; it comes with the full Readwise plan at $9.99 per month billed annually.
• Desktop apps are listed for Mac and Windows only, with no Linux app mentioned.

Cubox

Saving from many places

Browser extensions for Chrome, Edge, Safari and Firefox, the share sheet on iPhone, iPad and Android, a Mac helper, Email Drop and an API all save content into one library.

Article parsing and snapshots

Saved pages are parsed into a clean reading view with adjustable themes and fonts, and a permanent snapshot keeps the page readable if the original link dies. Snapshots are for Pro members.

Highlights and annotations

Highlight passages and add notes while reading, then review them later through widgets and reminders. Multiple highlight colors are part of the Pro plans.

AI Insight and Ask AI

AI Insight gives an article a short summary, key questions and automatic Ghost Highlights, and Ask AI answers follow-up questions. Automatic insight on newly saved items comes with Pro+AI.

Folders, tags and search

Nested folders and tags, smart folders, batch editing and full-text search organize the library. The help center lists nested folders as exclusive to Pro members.

Export and integrations

Content exports as Markdown, HTML or PDF, and collections and annotations sync to Notion, Readwise and Obsidian. Third-party integrations are a Pro feature.

Readwise

Daily Review

A daily selection of past highlights, delivered by email and in the app and timed with spaced repetition so older passages come back around.

Highlight import

Syncs highlights from Kindle, Apple Books, Kobo, Instapaper and other listed sources, and captures passages from paper books by photographing the page.

Export to note-taking apps

Sends highlights to Notion, Obsidian, Evernote, Roam, Logseq and other listed apps, or to Markdown and CSV. Exports are part of the full plan.

Reader

A read-later app for web articles, RSS feeds, email newsletters, PDFs, EPUBs, YouTube transcripts and X threads, with highlighting, full-text search and text to speech.

Ghostreader and chat with highlights

Ghostreader answers questions about a document, defines terms and simplifies passages. Chat answers show the highlights they were drawn from.

MCP server, CLI and API

An MCP server connects Claude, ChatGPT, Cursor or another MCP-compatible assistant to the library, alongside a command-line tool and an API.

Cubox

• Basic$0

  Free account for saving and reading, with a quota on saved content. The pricing page and help center do not state the number.

• Cubox Pro$29

  per year

  Unlimited saves and highlights, content parsing and webpage snapshots, multiple highlight colors, nested folders and tags, Email Drop and the API.

• Cubox Pro+AI$49

  per year

  Everything in Pro plus the AI reading assistant: automatic AI Insight summaries, Ask AI and AI Ghost Highlights. Starts with the 14-day trial.

Readwise

• Readwise Lite$5.59

  per month, billed annually ($67.08), or $6.99 billed monthly

  Daily Review by email and app, a searchable highlight library, and syncing of new highlights from all sources.

• Readwise$9.99

  per month, billed annually ($119.88), or $12.99 billed monthly

  The full plan: everything in Lite, plus tags and notes, exports to Notion, Obsidian and other note apps, and the Reader app.

Cubox

• Other savings

  Renewal price lock on Pro+AI annual

  Cubox's Premium FAQ says anyone who buys or subscribes to the Pro+AI annual membership can keep renewing at the original purchase price, whatever later price changes are made.

Readwise

• Annual discount

  Save 21% to 24% with yearly billing

  The pricing page shows a 21% saving on Readwise Lite ($5.59 instead of $6.99 a month) and 24% on the full plan ($9.99 instead of $12.99) when billed yearly.

• Education

  50% off for students and academics

  Students and other members of academia get 50% off by emailing Readwise before subscribing, then subscribing through the Readwise website.

• Nonprofit

  50% off for nonprofits

  The Reader page lists the same 50% discount for nonprofits, educators, military and first responders, requested by email.