# Critical Thinking for Coding vs Optician ABO Exam Prep

The clearest difference is in-app purchases: Critical Thinking for Coding at none against Optician ABO Exam Prep's 4. Optician ABO Exam Prep's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Optician ABO Exam Prep sells 4 in-app purchases, starting at $4.99 per 7 days. Critical Thinking for Coding asks for nothing beyond the download.

## The numbers

| Metric | Critical Thinking for Coding | Optician ABO Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Daily | — |
| Size | 37 MB | 25 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AFTW LLC](https://appshunter.io/developer/1886356149) | [fly sky pty ltd](https://appshunter.io/developer/1838696534) |

## What reviewers say

### Critical Thinking for Coding

[App page](https://appshunter.io/ios/app/critical-thinking-for-coding/id6768575272)

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

**In-app purchases:** none


### Optician ABO Exam Prep

[App page](https://appshunter.io/ios/app/optician-abo-exam-prep/id6779027665)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Optician Weekly | $4.99 | per 7 days |
| Optician Monthly | $12.99 | per month |
| Optician Yearly | $39.99 | per year |
| Optician Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Critical Thinking for Coding free?

Critical Thinking for Coding is free to download, with no in-app purchases.

### Is Optician ABO Exam Prep free?

Optician ABO Exam Prep is free to download, with in-app purchases available.

### Do Critical Thinking for Coding or Optician ABO Exam Prep have ads?

Critical Thinking for Coding shows ads; Optician ABO Exam Prep does not.

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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.*