# CheckDEC vs A

The clearest difference is review sentiment: CheckDEC at 100% against A's 0%. CheckDEC also leads on rating (5.0 vs 1.0) and in-app purchases (none vs 3). On price, ads and device support there is nothing between them.

Both are free to download. A sells 3 in-app purchases, starting at $1.99 per month. CheckDEC asks for nothing beyond the download.

CheckDEC holds the better App Store score, 5.0 against 1.0. That said, the two scores are not equally well evidenced: CheckDEC has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of CheckDEC's written reviews are positive against 0% of A's.

CheckDEC ships an update every 2 months, A every 8 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | CheckDEC | A |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/checkdec/id1581835489/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/a-level-biology-app/id1613078220/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 78 MB | 179 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [National Alliance for Drug Endangered Children](https://appshunter.io/developer/1581835491) | [Aerion Design Labs Ltd.](https://appshunter.io/developer/1029206329) |

## What reviewers say

### CheckDEC

[App page](https://appshunter.io/ios/app/checkdec/id1581835489)

This app connects children, families, and professionals with local resources and services for substance misuse. It offers links, downloadable content, and videos, alongside a news feed and a platform for sharing personal stories of hope and support.

**Highlights:** Local substance misuse resources, Links, downloads, and videos, Peer-to-peer story sharing, Professional resources and information, Up-to-date news feed on substance use, Engagement and hope for families

**Features:** macOS Compatibility

**In-app purchases:** none


### A

[App page](https://appshunter.io/ios/app/a-level-biology-app/id1613078220)

Prepare for A-Level Biology exams with over 1000 practice questions covering all topics. Track your progress, identify areas for improvement, and take chapter-based tests and full mock quizzes to assess your readiness.

**Highlights:** 1000+ practice questions, Covers all course topics, Chapter-based tests, Pop and Mock quizzes, Progress monitoring, Topic-specific improvement tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ALevel Biology Subscription | $1.99 | per month |
| ALevel Biology Subscription | $7.99 | per 6 months |
| ALevel Biology Subscription | $9.99 | per year |


## Frequently asked questions

### Is CheckDEC free?

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

### Is A free?

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

### Which has better reviews, CheckDEC or A?

CheckDEC is rated higher. CheckDEC averages 5.0 out of 5 from 7 ratings, while A averages 1.0 from 1 ratings.

### Do CheckDEC or A have ads?

Neither CheckDEC nor A shows ads.

### Which is updated more often, CheckDEC or A?

CheckDEC ships an update every 2 months, and A every 8 months. Most recently, CheckDEC was updated on October 24, 2026 and A 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.*