# Casty vs Algebra Handbook

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

Both are free to download. Algebra Handbook sells 3 in-app purchases, starting at $1.99 per month. Casty asks for nothing beyond the download.

Casty ships an update every 2 days, Algebra Handbook every 3 weeks. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Casty | Algebra Handbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/casty/id6740439860/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 23 MB | 51 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wai Yip Li](https://appshunter.io/developer/1789980681) | [Oleg Korunov](https://appshunter.io/developer/6811071409) |

## What reviewers say

### Casty

[App page](https://appshunter.io/ios/app/casty/id6740439860)

Transform PDF documents into engaging podcasts with live transcripts and a built-in dictionary. Listen offline to educational content in Japanese or English after generation.

**Highlights:** Convert PDFs to podcasts, Live transcripts, Built-in dictionary, Offline listening, Japanese and English support

**Features:** macOS Compatibility

**In-app purchases:** none


### Algebra Handbook

[App page](https://appshunter.io/ios/app/algebra-handbook/id6816303816)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Algebra Pro — Monthly | $1.99 | per month |
| Algebra Pro — Yearly | $9.99 | per year |
| Algebra Pro — Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Casty free?

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

### Is Algebra Handbook free?

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

### Do Casty or Algebra Handbook have ads?

Neither Casty nor Algebra Handbook shows ads.

### Which is updated more often, Casty or Algebra Handbook?

Casty ships an update every 2 days, and Algebra Handbook every 3 weeks. Most recently, Casty was updated on October 18, 2026 and Algebra Handbook on October 24, 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.*