# Cubic vs Xarra

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.

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.

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.

## The numbers

| Metric | Cubic | Xarra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cubic-second-brain-and-reader/id6758525542/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 63 MB | 17 MB |
| Requires iOS | **18.5** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 17+ | 4+ |
| Developer | [ARPIT MATHUR](https://appshunter.io/developer/1873364032) | [Daniel Devesa Derksen-Staats](https://appshunter.io/developer/1866327000) |

## What reviewers say

### Cubic

[App page](https://appshunter.io/ios/app/cubic-second-brain-and-reader/id6758525542)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cubic Pro Monthly | $3.99 | per month |
| Cubic Pro Yearly | $14.99 | per year |


### Xarra

[App page](https://appshunter.io/ios/app/xarra-text-to-speech-reader/id6759402266)

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:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Lifetime Access | $29.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*