Cubox vs Instapaper
Price, platforms and features side by side. The table says where each price was read and when.
Cubox
Read-later app with highlights, snapshots and AI summaries
Instapaper
Read-later app that strips articles down to clean text
Where they differ
- Cubox starts at $29 per year (Cubox Pro, annual plan). Instapaper starts at $5.99 per month, or $59.99 per year.
- Cubox also covers web clipper and bookmarks.
At a glance
| Cubox | Instapaper | |
|---|---|---|
| Pricing | Free plan | Free plan |
| Starts at | $29 per year (Cubox Pro, annual plan) | $5.99 per month, or $59.99 per year |
| Free plan | A basic account is free but has a quota on saved content, which the vendor pages read do not put a number on. Unlimited saves and highlights, snapshots, nested folders, Email Drop and the API need Pro. | Unlimited saves, sync across web, iOS and Android, folders and API access. Notes are capped at 5 a month, and AI summaries and speed reading at 10 a month each. |
| Free trial | 14-day free trial of Pro+AI, once per basic user; a payment method must be linked | None listed |
| Web | ||
| macOS | ||
| iOS | ||
| Android | ||
| Browser extension | ||
| Made by | Zenbox Inc. | Instant Paper, Inc. |
| Price read from | cubox.cc | instapaper.com |
| Checked | Oct 6, 2026 | Oct 5, 2026 |
Who each one suits
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
Instapaper
- Saving long articles to read later without ads or page clutter
- Reading saved articles on a Kindle, Kobo or Boox eReader
- Commuters and travelers who read or listen offline
Worth knowing
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.
Instapaper
- Full-text search, the PDF reader and the permanent archive all require Premium.
- Free accounts get 5 notes a month, and 10 summaries and 10 speed-read articles a month.
- AI summaries are not yet available on Android, according to Instapaper's docs.
- Free accounts see ads on the Instapaper website; Premium removes them.
Key features
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.
Instapaper
- Decluttered reading view
- Removes ads, navigation and other page clutter from a saved article and reformats it for reading, with adjustable fonts, margins, line spacing and text size.
- Offline reading and sync
- The iOS and Android apps download unread articles so they can be read without a connection, and reading lists stay in sync across devices.
- Highlights and notes
- Highlight passages and attach notes, then export them as plain text, Markdown or HTML or send them to Obsidian, Evernote or Notion.
- Kindle, Kobo and Boox delivery
- Kobo eReaders link directly to an Instapaper account, free accounts included. Scheduled and manual Kindle digests require Premium.
- Text to speech
- The iOS and Android apps read saved articles aloud at 0.5x to 2x speed. AI Voices and multi-article playlists come with Premium.
- Summaries and speed reading
- Generates an AI summary with the key sentences of an article, and can flash text one word at a time. Each is free for 10 articles a month.
Plans
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.
Instapaper
Free$0
Unlimited saved articles, videos and pages, sync across web, iOS and Android, folders and API access. Notes are limited to 5 a month.
Premium$5.99
per month, or $59.99 per year
Full-text search, PDF reader, permanent archive, unlimited notes, Kindle digests, AI Voices and text-to-speech playlists, and an ad-free website.
Ways to pay less
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.
Instapaper
- Annual discount
Save over 15% with the yearly plan
Instapaper's Premium page says the yearly plan saves over 15%: $59.99 a year instead of $5.99 a month.
