# Reading Glasses vs Critical Thinking Concepts

The clearest difference is in-app purchases: Reading Glasses at none against Critical Thinking Concepts's 2. Reading Glasses also leads on device support (3 vs 1) and iOS requirement (8.0 vs 18.0). On price, update cadence and ads there is nothing between them.

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

Reading Glasses ships an update monthly, Critical Thinking Concepts every 2 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Reading Glasses | Critical Thinking Concepts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (38 ratings)](https://appshunter.io/ios/app/critical-thinking-concepts/id6446604872/reviews)** |
| Number of ratings | — | **38** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 50 MB | 35 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Andrea Aspesi](https://appshunter.io/developer/1663784592) | [Anthony Harvey](https://appshunter.io/developer/1478197285) |

## What reviewers say

### Reading Glasses

[App page](https://appshunter.io/ios/app/reading-glasses/id1598720422)

**Features:** macOS Compatibility

**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 Reading Glasses free?

Reading Glasses 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.

### Do Reading Glasses or Critical Thinking Concepts have ads?

Neither Reading Glasses nor Critical Thinking Concepts shows ads.

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

Reading Glasses ships an update monthly, and Critical Thinking Concepts every 2 months. Most recently, Reading Glasses was updated on October 25, 2026 and Critical Thinking Concepts on October 24, 2026.

---

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