# APHL Lab Matters vs Disease Intervention Exam Prep

The clearest difference is in-app purchases: APHL Lab Matters at none against Disease Intervention Exam Prep's 9. APHL Lab Matters also leads on iOS requirement (11.0 vs 15.1). Disease Intervention Exam Prep's advantage is update cadence (every 4 months vs every 9 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Disease Intervention Exam Prep sells 9 in-app purchases, starting at $8.99 per 7 days. APHL Lab Matters asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for APHL Lab Matters against 5.0 for Disease Intervention Exam Prep. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

APHL Lab Matters ships an update every 9 months, Disease Intervention Exam Prep every 4 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | APHL Lab Matters | Disease Intervention Exam Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/aphl-lab-matters/id1156370719/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/disease-intervention-exam-prep/id6741022399/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 74 MB | 51 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [The Association of Public Health Laboratories, Inc.](https://appshunter.io/developer/606229774) | [Exam Prep OU](https://appshunter.io/developer/1689642184) |

## What reviewers say

### APHL Lab Matters

[App page](https://appshunter.io/ios/app/aphl-lab-matters/id1156370719)

This app provides access to a magazine focused on public health laboratories. It highlights the work of laboratories in monitoring and detecting health threats to protect public health in the US and globally.

**Highlights:** Access to Lab Matters Magazine, Information on public health laboratory systems, Details on health threat monitoring, Global and US health security insights, Updates on laboratory advancements

**Features:** macOS Compatibility

**In-app purchases:** none


### Disease Intervention Exam Prep

[App page](https://appshunter.io/ios/app/disease-intervention-exam-prep/id6741022399)

Prepare for the Certified in Disease Intervention exam with up-to-date content, an extensive question bank, and detailed explanations. Track your progress, customize study plans, and take simulated exams to build confidence for public health certification.

**Highlights:** Up-to-date content, Extensive question bank, Detailed explanations, Progress tracking, Customizable study plans, Simulated exam mode

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CDI Weekly Full Access | $8.99 | per 7 days |
| CDI Monthly Full Access | $24.99 | per month |
| CDI Monthly Full Access | $34.99 | per month |
| CDI Quarterly Full Access | $55.99 | per 3 months |
| CDI Quarterly Full Access | $59.99 | per 3 months |
| CDI Semiannual Full Access | $75.99 | per 6 months |
| CDI Semiannual Full Access | $79.99 | per 6 months |
| CDI Annual Full Access | $109.99 | per year |
| CDI Annual Full Access | $119.99 | per year |


## Frequently asked questions

### Is APHL Lab Matters free?

APHL Lab Matters is free to download, with no in-app purchases.

### Is Disease Intervention Exam Prep free?

Disease Intervention Exam Prep is free to download, with in-app purchases available.

### Which has better reviews, APHL Lab Matters or Disease Intervention Exam Prep?

APHL Lab Matters and Disease Intervention Exam Prep are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do APHL Lab Matters or Disease Intervention Exam Prep have ads?

Neither APHL Lab Matters nor Disease Intervention Exam Prep shows ads.

### Which is updated more often, APHL Lab Matters or Disease Intervention Exam Prep?

APHL Lab Matters ships an update every 9 months, and Disease Intervention Exam Prep every 4 months. Most recently, APHL Lab Matters was updated on November 2, 2026 and Disease Intervention Exam Prep on October 30, 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.*