# Cubic vs RSS Reader Peruse

The clearest difference is in-app purchases: RSS Reader Peruse at none against Cubic's 2. Cubic's advantage is ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Cubic sells 2 in-app purchases, starting at $3.99 per month. RSS Reader Peruse asks for nothing beyond the download.

Cubic ships an update every 6 days, RSS Reader Peruse every 3 weeks. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Cubic | RSS Reader Peruse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cubic-second-brain-and-reader/id6758525542/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 63 MB | 27 MB |
| Requires iOS | **18.5** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [ARPIT MATHUR](https://appshunter.io/developer/1873364032) | [Tatsuyuki Kobayashi](https://appshunter.io/developer/898523674) |

## 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 |


### RSS Reader Peruse

[App page](https://appshunter.io/ios/app/rss-reader-peruse/id6759302254)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cubic free?

Cubic is free to download, with in-app purchases available.

### Is RSS Reader Peruse free?

RSS Reader Peruse is free to download, with no in-app purchases.

### Do Cubic or RSS Reader Peruse have ads?

RSS Reader Peruse shows ads; Cubic does not.

### Which is updated more often, Cubic or RSS Reader Peruse?

Cubic ships an update every 6 days, and RSS Reader Peruse every 3 weeks. Most recently, Cubic was updated on October 14, 2026 and RSS Reader Peruse on October 2, 2026.

---

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