# PICU Essentials vs AECS SUNDAY SCHOOL

The clearest difference is in-app purchases: AECS SUNDAY SCHOOL at none against PICU Essentials's 1. AECS SUNDAY SCHOOL also leads on update cadence (every 10 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PICU Essentials sells 1 in-app purchase, starting at $9.99 per year. AECS SUNDAY SCHOOL asks for nothing beyond the download.

PICU Essentials ships an update every 6 months, AECS SUNDAY SCHOOL every 10 days. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | PICU Essentials | AECS SUNDAY SCHOOL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (125 ratings)](https://appshunter.io/ios/app/picu-essentials/id1207366521/reviews)** | — |
| Number of ratings | **125** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 130 MB | 43 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Atmosphere Apps, Inc.](https://appshunter.io/developer/334077424) | [Shady Habib](https://appshunter.io/developer/1895293830) |

## What reviewers say

### PICU Essentials

[App page](https://appshunter.io/ios/app/picu-essentials/id1207366521)

A practical handbook for medical professionals in pediatric intensive care units, drawing on 20 years of experience. Content is peer-reviewed and updated regularly, applicable across various settings. Proceeds support app maintenance and development.

**Highlights:** Practical handbook for PICU professionals, Based on 20 years of PICU practice, Peer-reviewed content, Regular content updates, Applicable in most settings, Supports app development

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $9.99 | per year |


### AECS SUNDAY SCHOOL

[App page](https://appshunter.io/ios/app/aecs-sunday-school/id6763394200)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PICU Essentials free?

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

### Is AECS SUNDAY SCHOOL free?

AECS SUNDAY SCHOOL is free to download, with no in-app purchases.

### Do PICU Essentials or AECS SUNDAY SCHOOL have ads?

Neither PICU Essentials nor AECS SUNDAY SCHOOL shows ads.

### Which is updated more often, PICU Essentials or AECS SUNDAY SCHOOL?

PICU Essentials ships an update every 6 months, and AECS SUNDAY SCHOOL every 10 days. Most recently, PICU Essentials was updated on October 20, 2026 and AECS SUNDAY SCHOOL on October 10, 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.*