# BookThoughts vs TivraX AI PDF Audiobook Reader

The clearest difference is update cadence: TivraX AI PDF Audiobook Reader at every 11 days against BookThoughts's every 6 weeks. BookThoughts's advantage is iOS requirement (13.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

BookThoughts ships an update every 6 weeks, TivraX AI PDF Audiobook Reader every 11 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BookThoughts | TivraX AI PDF Audiobook Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 11 days** |
| Size | 46 MB | 33 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [婷雅 李](https://appshunter.io/developer/1729964855) | [Vinod Sharma](https://appshunter.io/developer/6775179266) |

## What reviewers say

### BookThoughts

[App page](https://appshunter.io/ios/app/bookthoughts/id6478048154)

**In-app purchases:** none


### TivraX AI PDF Audiobook Reader

[App page](https://appshunter.io/ios/app/tivrax-ai-pdf-audiobook-reader/id6782730524)

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

**In-app purchases:** none


## Frequently asked questions

### Is BookThoughts free?

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

### Is TivraX AI PDF Audiobook Reader free?

TivraX AI PDF Audiobook Reader is free to download, with no in-app purchases.

### Do BookThoughts or TivraX AI PDF Audiobook Reader have ads?

Neither BookThoughts nor TivraX AI PDF Audiobook Reader shows ads.

### Which is updated more often, BookThoughts or TivraX AI PDF Audiobook Reader?

BookThoughts ships an update every 6 weeks, and TivraX AI PDF Audiobook Reader every 11 days. Most recently, BookThoughts was updated on November 8, 2026 and TivraX AI PDF Audiobook Reader on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*