# Critical Thinking Concepts vs ABAB Word

The clearest difference is in-app purchases: ABAB Word at none against Critical Thinking Concepts's 2. ABAB Word also leads on update cadence (every 2 days vs every 2 months) and rating (5.0 vs 4.7). Critical Thinking Concepts's advantage is ratings volume (39 vs 2). On price, review sentiment, ads and device support there is nothing between them.

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

ABAB Word holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Critical Thinking Concepts has 39 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Critical Thinking Concepts ships an update every 2 months, ABAB Word every 2 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Critical Thinking Concepts | ABAB Word |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (39 ratings)](https://appshunter.io/ios/app/critical-thinking-concepts/id6446604872/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/abab-word/id6760215327/reviews)** |
| Number of ratings | **39** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 54 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Anthony Harvey](https://appshunter.io/developer/1478197285) | [ABAB Labs LLC](https://appshunter.io/developer/1877618883) |

## What reviewers say

### 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 |


### ABAB Word

[App page](https://appshunter.io/ios/app/abab-word/id6760215327)

This app helps users quickly build and review vocabulary through a simple flashcard system. It allows for the creation and management of personal word libraries, providing meanings, examples, synonyms, and antonyms for efficient learning.

**Highlights:** Personal word library creation, Flashcard vocabulary review, Meaning, example, synonym, antonym display, Fast and distraction-free learning, Simple and efficient interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Critical Thinking Concepts free?

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

### Is ABAB Word free?

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

### Which has better reviews, Critical Thinking Concepts or ABAB Word?

ABAB Word is rated higher. Critical Thinking Concepts averages 4.7 out of 5 from 39 ratings, while ABAB Word averages 5.0 from 2 ratings.

### Do Critical Thinking Concepts or ABAB Word have ads?

Neither Critical Thinking Concepts nor ABAB Word shows ads.

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

Critical Thinking Concepts ships an update every 2 months, and ABAB Word every 2 days. Most recently, Critical Thinking Concepts was updated on November 7, 2026 and ABAB Word on November 5, 2026.

---

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