# Episteme vs EPUB Reader

The clearest difference is ads: Episteme at none against EPUB Reader's shown. EPUB Reader's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Episteme sells 5 one-off in-app purchases and EPUB Reader sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Episteme ships an update every 3 days, EPUB Reader every 6 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | Episteme | EPUB Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 6 days |
| Size | 102 MB | 46 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | +4 |
| Developer | [Aryan Raj](https://appshunter.io/developer/6803775135) | [Furkan Akif ISLEK](https://appshunter.io/developer/6801644269) |

## What reviewers say

### Episteme

[App page](https://appshunter.io/ios/app/episteme-pdf-and-ebook-reader/id6803775133)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wallet Top-Up $1 | $0.99 | one-time |
| Wallet Top-Up $5 | $4.99 | one-time |
| Episteme Pro | $5.99 | one-time |
| Wallet Top-Up $10 | $9.99 | one-time |
| Wallet Top-Up $20 | $19.99 | one-time |


### EPUB Reader

[App page](https://appshunter.io/ios/app/epub-reader-bunko/id6804798861)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bunko Pro Monthly | $0.99 | per month |
| Bunko Pro Yearly | $5.99 | per year |
| Bunko Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Episteme free?

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

### Is EPUB Reader free?

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

### Do Episteme or EPUB Reader have ads?

EPUB Reader shows ads; Episteme does not.

### Which is updated more often, Episteme or EPUB Reader?

Episteme ships an update every 3 days, and EPUB Reader every 6 days. Most recently, Episteme was updated on October 29, 2026 and EPUB Reader on October 29, 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.*