# Kaleida vs Probs

The clearest difference is ads: Probs at none against Kaleida's shown. Probs also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Kaleida sells 5 in-app purchases, starting at $5.00 per 7 days and Probs sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Kaleida ships an update every 2 weeks, Probs weekly. The most recent releases landed on September 11, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Kaleida | Probs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (14 ratings)](https://appshunter.io/ios/app/kaleida-thinking-partner/id6740244139/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 231 MB | 44 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Spacenotes](https://appshunter.io/developer/1714840919) | [Critical Gameplay](https://appshunter.io/developer/503636770) |

## 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 |


### Probs

[App page](https://appshunter.io/ios/app/probs/id6759471168)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Monthly | $4.99 | per month |
| Decision Pack | $2.99 | one-time |


## Frequently asked questions

### Is Kaleida free?

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

### Is Probs free?

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

### Do Kaleida or Probs have ads?

Kaleida shows ads; Probs does not.

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

Kaleida ships an update every 2 weeks, and Probs weekly. Most recently, Kaleida was updated on September 11, 2026 and Probs on September 16, 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.*