Comparison

Cubic vs Xarra

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

Head to head
About

Cubic

Transform passive reading into active learning by saving articles, organizing content, and creating reviewable flashcards from your highlights. Discover new material through RSS feeds or curated collections and track your learning progress over time.

Highlights
  • Discover content via RSS feeds and curated collections
  • Save articles and organize into a personal library
  • Add notes and highlights to saved content
  • Convert highlights into reviewable flashcards
  • Track reading habits and learning trends
  • Organize content for recall
Read full description

Cubic - Turn what you read into what you remember Cubic helps you move from passive browsing to active learning. Discover great content, save what matters, and revisit it in a way that actually sticks. DISCOVER WITH INTENT Follow RSS feeds or explore curated collections across topics like tech, design, and business. COLLECT WHAT MATTERS Save articles, organize them into your personal library, and add notes or highlights as you read. REFLECT TO REMEMBER Your highlights become reviewable flash cards, helping you retain ideas over time. A SMOOTHER READING FLOW Swipe through articles and uncover interesting ideas without juggling tabs. BUILD YOUR KNOWLEDGE SYSTEM All your content, notes, and insights—organized for recall, not just storage. TRACK YOUR LEARNING See reading habits and trends to understand what you consume and how you grow. If you read a lot but forget most of it, Cubic gives you a simple system: discover → collect → reflect. ---- Support: Check out https://cubic.surf/faq or contact feedback@cubic.surf Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://cubic.surf/privacy

About

Xarra

Listen to articles, documents, and web content with natural-sounding text-to-speech. Customize playback speed, voices, and reading fonts, with optional synced highlighting. This app prioritizes privacy, working offline without accounts or tracking.

Highlights
  • On-device text-to-speech
  • Supports PDF, EPUB, Markdown, and more
  • Web article sharing
  • Adjustable playback speed and voices
  • Customizable reading fonts
  • Synced line and word highlighting
  • Offline functionality
Features
Read full description

Xarra uses on-device text-to-speech with natural voices, so you can listen to pretty much any text, or read along with synced line and optional word highlighting, and stay focused. Featured in Create with Swift, Weekly Newsletter #101 (Indie App of the Week): "The app developed by Daniel is well integrated into the system. (...) Accessibility runs through the whole experience rather than sitting on top of it." Bring your content in: • Import PDF, EPUB, Markdown, DAISY, plain text, RTF, and more, or browse Project Gutenberg in the app. • Share web articles, blog posts, and documents from Safari and other apps. • Paste text or add a URL. Listen your way: • Optional word highlighting in background or underline styles. • Adjust playback speed and pick a voice for each language. • Choose reading fonts including OpenDyslexic, Atkinson Hyperlegible, and Lexend. Accessibility front and center: • VoiceOver-friendly navigation, Dynamic Type as a design principle, Bold Text, and Increase Contrast support, and more. • Respects your device assistive technology voice and speed settings. Private, lightweight, and offline-friendly: no account, no analytics, no tracking. Your documents stay on your device and sync through your private iCloud when enabled. Terms & Conditions for Xarra: https://accessibilityupto11.com/apps/xarra/terms/

Screenshots

Cubic4 screens
Xarra4 screens

Verdict

The call

The clearest difference is update cadence: Cubic at every 6 days against Xarra's every 3 weeks. Cubic also leads on iOS requirement (18.5 vs 26.0). Xarra's advantage is device support (4 vs 2). On price, ads, in-app purchases and monetization model 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. Cubic sells 2 in-app purchases, starting at $3.99 per month and Xarra sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Cubic ships an update every 6 days, Xarra every 3 weeks. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Cubic versus Xarra: the parameters behind the verdict, then further details
ParameterCubicXarra
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad, Mac, Vision Pro — better
Requires iOS18.5 — better26.0
Further details — not scored
Size63 MB17 MB
Age rating17+4+
DeveloperARPIT MATHURDaniel Devesa Derksen-Staats

Customer experience

Cubic

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Xarra

Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Cubic

Subscriptions2
  • Cubic Pro Monthly$3.991 Month
  • Cubic Pro Yearly$14.991 Year
3 purchases

Xarra

Subscriptions2
  • Monthly Subscription7 Days trial$1.991 Month
  • Yearly Subscription14 Days trial$9.991 Year
One-time1
  • Lifetime Access$29.99

Questions

Is Cubic free?
Cubic is free to download, with in-app purchases available.
Is Xarra free?
Xarra is free to download, with in-app purchases available.
Do Cubic or Xarra have ads?
Neither Cubic nor Xarra shows ads.
Which is updated more often, Cubic or Xarra?
Cubic ships an update every 6 days, and Xarra every 3 weeks. Most recently, Cubic was updated on October 14, 2026 and Xarra on October 9, 2026.

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