# MERS eTextbook vs App for AeroDrive

The clearest difference is device support: App for AeroDrive at 3 against MERS eTextbook's 1. App for AeroDrive also leads on iOS requirement (8.1 vs 18.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MERS eTextbook ships an update every 3 months, App for AeroDrive every 2 months. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | MERS eTextbook | App for AeroDrive |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 66 MB | 5 MB |
| Requires iOS | 18.6 | **8.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [kim ming yeung](https://appshunter.io/developer/892736961) |

## What reviewers say

### MERS eTextbook

[App page](https://appshunter.io/ios/app/mers-etextbook/id559730704)

This application allows students to download and access eTextbooks from their school. It provides interactive learning tools, multimedia content, and tracks user progress. Content is personalized based on user login and school affiliation.

**Highlights:** Downloadable eTextbooks, Personalized content by school, Interactive learning tools, Multimedia integration, Learning history tracking, Notifications for new content

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

**In-app purchases:** none


### App for AeroDrive

[App page](https://appshunter.io/ios/app/app-for-aerodrive/id892736958)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MERS eTextbook free?

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

### Is App for AeroDrive free?

App for AeroDrive is free to download, with no in-app purchases.

### Do MERS eTextbook or App for AeroDrive have ads?

Neither MERS eTextbook nor App for AeroDrive shows ads.

### Which is updated more often, MERS eTextbook or App for AeroDrive?

MERS eTextbook ships an update every 3 months, and App for AeroDrive every 2 months. Most recently, MERS eTextbook was updated on November 6, 2026 and App for AeroDrive on November 1, 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.*