# excel vs Critical Thinking Concepts

The clearest difference is in-app purchases: excel at none against Critical Thinking Concepts's 2. excel also leads on iOS requirement (13.0 vs 18.0). Critical Thinking Concepts's advantage is update cadence (every 2 months vs every 56 months). On price there is nothing between them.

Both are free to download. Critical Thinking Concepts sells 2 in-app purchases, starting at $3.99 per month. excel asks for nothing beyond the download.

excel ships an update every 56 months, Critical Thinking Concepts every 2 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | excel | Critical Thinking Concepts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (37 ratings)](https://appshunter.io/ios/app/critical-thinking-concepts/id6446604872/reviews)** |
| Number of ratings | — | **37** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 56 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 35 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | — | **iPhone** |
| Age rating | 4+ | 4+ |
| Developer | [Rudolf Meerkotter](https://appshunter.io/developer/1290131697) | [Anthony Harvey](https://appshunter.io/developer/1478197285) |

## What reviewers say

### excel

[App page](https://appshunter.io/ios/app/excel-a-math/id1579180505)

**In-app purchases:** none


### Critical Thinking Concepts

[App page](https://appshunter.io/ios/app/critical-thinking-concepts/id6446604872)

This app is an interactive study companion that teaches core concepts, methods, and terminology of critical thinking. It helps users develop analytical and reasoning skills for navigating complex issues effectively. Features include Q&A, swipe cards, a visual feed, audio playback, and study statistics.

**Highlights:** Question & Answer format, Swipe card learning, Visual learning feed, Audio player for lessons, Study statistics tracking, Offline usability

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access Monthly | $3.99 | per month |
| All Access Annual | $7.99 | per year |


## Frequently asked questions

### Is excel free?

excel is free to download, with no in-app purchases.

### Is Critical Thinking Concepts free?

Critical Thinking Concepts is free to download, with in-app purchases available.

### Which is updated more often, excel or Critical Thinking Concepts?

excel ships an update every 56 months, and Critical Thinking Concepts every 2 months. Most recently, excel was updated on October 7, 2026 and Critical Thinking Concepts on October 8, 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.*