# TinyWhy vs Timebound EPUB Reader

The clearest difference is in-app purchases: Timebound EPUB Reader at none against TinyWhy's 2. Timebound EPUB Reader also leads on update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TinyWhy sells 2 in-app purchases, starting at $3.99 per month. Timebound EPUB Reader asks for nothing beyond the download.

TinyWhy ships an update every 3 weeks, Timebound EPUB Reader every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | TinyWhy | Timebound EPUB Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 47 MB | 25 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [erdem caygor](https://appshunter.io/developer/1853492040) | [Cow Cow Technologies LLC](https://appshunter.io/developer/924502488) |

## What reviewers say

### TinyWhy

[App page](https://appshunter.io/ios/app/tinywhy-fun-and-random-facts/id6764177614)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mythoria Pro - Monthly | $3.99 | per month |
| Mythoria Pro - Yearly | $29.99 | per year |


### Timebound EPUB Reader

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

**In-app purchases:** none


## Frequently asked questions

### Is TinyWhy free?

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

### Is Timebound EPUB Reader free?

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

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

Neither TinyWhy nor Timebound EPUB Reader shows ads.

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

TinyWhy ships an update every 3 weeks, and Timebound EPUB Reader every 5 days. Most recently, TinyWhy was updated on November 5, 2026 and Timebound EPUB Reader on October 31, 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.*