# Kaleida vs Cubic

The clearest difference is ads: Cubic at none against Kaleida's shown. Cubic also leads on rating (5.0 vs 4.8) and update cadence (every 6 days vs every 2 weeks). Kaleida's advantage is ratings volume (14 vs 2). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Kaleida sells 5 in-app purchases, starting at $5.00 per 7 days and Cubic sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Cubic holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Kaleida has 14 ratings behind it against 2, so its average is the more settled of the two.

Kaleida ships an update every 2 weeks, Cubic every 6 days. The most recent releases landed on September 30, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Kaleida | Cubic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (14 ratings)](https://appshunter.io/ios/app/kaleida-thinking-partner/id6740244139/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cubic-second-brain-and-reader/id6758525542/reviews)** |
| Number of ratings | **14** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 231 MB | 63 MB |
| Requires iOS | **18.0** | 18.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Spacenotes](https://appshunter.io/developer/1714840919) | [ARPIT MATHUR](https://appshunter.io/developer/1873364032) |

## What reviewers say

### Kaleida

[App page](https://appshunter.io/ios/app/kaleida-thinking-partner/id6740244139)

This app guides you through complex decisions with structured thinking tools. It helps clarify trade-offs, identify risks, explore options, and check your biases to create a comprehensive decision brief.

**Highlights:** Structured thinking tools, Personalized decision plans, Trade-off analysis, Pre-mortem risk assessment, Options mapping, Values clarification, Bias detection, Decision brief creation

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kaleida Pro Weekly | $5.00 | per 7 days |
| Kaleida Pro Monthly | $14.00 | per month |
| Every 3 months | $35.00 | per 3 months |
| Kaleida Pro Yearly | $79.99 | per year |
| Unlock one decision | $14.99 | one-time |


### 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 |


## Frequently asked questions

### Is Kaleida free?

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

### Is Cubic free?

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

### Which has better reviews, Kaleida or Cubic?

Cubic is rated higher. Kaleida averages 4.8 out of 5 from 14 ratings, while Cubic averages 5.0 from 2 ratings.

### Do Kaleida or Cubic have ads?

Kaleida shows ads; Cubic does not.

### Which is updated more often, Kaleida or Cubic?

Kaleida ships an update every 2 weeks, and Cubic every 6 days. Most recently, Kaleida was updated on September 30, 2026 and Cubic on October 14, 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.*