# Aerolog EFB vs Folio

The clearest difference is in-app purchases: Folio at none against Aerolog EFB's 2. Folio also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Aerolog EFB sells 2 in-app purchases, starting at $9.99 per month. Folio asks for nothing beyond the download.

Aerolog EFB ships an update every 2 days, Folio daily. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Aerolog EFB | Folio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/folio-offline-html-viewer/id6803229706/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | — | Free |
| Size | 27 MB | 4 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pidintala Navneet Kumar Reddy](https://appshunter.io/developer/1895950945) | [Brian Renshaw](https://appshunter.io/developer/6803229708) |

## What reviewers say

### Aerolog EFB

[App page](https://appshunter.io/ios/app/aerolog-efb/id6765481245)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AeroLog Premium (Monthly) | $9.99 | per month |
| Aerolog Premium (Yearly) | $99.99 | per year |


### Folio

[App page](https://appshunter.io/ios/app/folio-offline-html-viewer/id6803229706)

View and interact with HTML files offline, preserving their original layout and functionality. Organize your imported web content with robust library management tools and access it securely, even without an internet connection.

**Highlights:** Offline HTML viewing, Interactive web page support, Import HTML files and folders, Library organization and search, Controlled network access, Private by design, Optional iCloud sync

**In-app purchases:** none


## Frequently asked questions

### Is Aerolog EFB free?

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

### Is Folio free?

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

### Do Aerolog EFB or Folio have ads?

Neither Aerolog EFB nor Folio shows ads.

### Which is updated more often, Aerolog EFB or Folio?

Aerolog EFB ships an update every 2 days, and Folio daily. Most recently, Aerolog EFB was updated on October 29, 2026 and Folio on October 25, 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.*