# Infinity Index vs Castria

The clearest difference is in-app purchases: Infinity Index at none against Castria's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Castria sells 2 in-app purchases, starting at $4.99 per month. Infinity Index asks for nothing beyond the download.

## The numbers

| Metric | Infinity Index | Castria |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/castria/id6773306883/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free |
| Size | 30 MB | 49 MB |
| Requires iOS | **15.3** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 9+ | 4+ |
| Developer | [Chris Wong](https://appshunter.io/developer/1810489235) | [Extroverted Developer, LLC](https://appshunter.io/developer/879103427) |

## What reviewers say

### Infinity Index

[App page](https://appshunter.io/ios/app/infinity-index/id6746701326)

**Features:** macOS Compatibility

**In-app purchases:** none


### Castria

[App page](https://appshunter.io/ios/app/castria/id6773306883)

This podcast app automatically removes ads, sponsor reads, and commercial breaks from episodes. It also offers AI-powered summaries, searchable transcripts, and chapter navigation for a seamless listening experience. Enjoy offline playback and cross-device syncing for free.

**Highlights:** Automatic ad skipping, AI episode summaries, Searchable transcripts, Tap-to-jump topics, Offline downloads, Cross-device syncing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Castria Premium Monthly | $4.99 | per month |
| Castria Premium Yearly | $44.99 | per year |


## Frequently asked questions

### Is Infinity Index free?

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

### Is Castria free?

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

### Do Infinity Index or Castria have ads?

Neither Infinity Index nor Castria shows ads.

---

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