# Timebound EPUB Reader vs Episteme

The clearest difference is in-app purchases: Timebound EPUB Reader at none against Episteme's 5. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Episteme sells 5 one-off in-app purchases. Timebound EPUB Reader asks for nothing beyond the download.

Timebound EPUB Reader ships an update every 5 days, Episteme every 3 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Timebound EPUB Reader | Episteme |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 25 MB | 102 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Cow Cow Technologies LLC](https://appshunter.io/developer/924502488) | [Aryan Raj](https://appshunter.io/developer/6803775135) |

## What reviewers say

### Timebound EPUB Reader

[App page](https://appshunter.io/ios/app/timebound-epub-reader/id6778347293)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Timebound EPUB Reader free?

Timebound EPUB Reader is free to download, with no in-app purchases.

### Is Episteme free?

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

### Do Timebound EPUB Reader or Episteme have ads?

Neither Timebound EPUB Reader nor Episteme shows ads.

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

Timebound EPUB Reader ships an update every 5 days, and Episteme every 3 days. Most recently, Timebound EPUB Reader was updated on October 24, 2026 and Episteme 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.*