# DriveThruRPG Library vs Caster's Deck

The clearest difference is review sentiment: Caster's Deck at 100% against DriveThruRPG Library's 29%. Caster's Deck also leads on rating (5.0 vs 3.3) and update cadence (fortnightly vs every 9 months). DriveThruRPG Library's advantage is monetization model (free vs paid) and ratings volume (12 vs 1). 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.

Caster's Deck holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: DriveThruRPG Library has 12 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 29% of DriveThruRPG Library's written reviews are positive against 100% of Caster's Deck's.

DriveThruRPG Library ships an update every 9 months, Caster's Deck fortnightly. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DriveThruRPG Library | Caster's Deck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (12 ratings)](https://appshunter.io/ios/app/drivethrurpg-library/id1425976251/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/casters-deck/id6759479355/reviews)** |
| Number of ratings | **12** | 1 |
| Positive reviews | 29.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | **Free** | Paid |
| Size | 49 MB | 47 MB |
| Requires iOS | **14.5** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [OneBookShelf, Inc.](https://appshunter.io/developer/442207598) | [Jared Carter](https://appshunter.io/developer/1878896424) |

## What reviewers say

### DriveThruRPG Library

[App page](https://appshunter.io/ios/app/drivethrurpg-library/id1425976251)

Easily sync and organize your entire collection of RPG files on your mobile device. Keep your digital library updated automatically and access any file with your preferred viewer. Access purchases from various OneBookShelf sites.

**Highlights:** Sync entire library to device, Organize by publisher/rule system, Custom collection organization, Automatic file updates, Open files in favorite viewer, Access OneBookShelf purchases

**Features:** macOS Compatibility

**In-app purchases:** none


### Caster's Deck

[App page](https://appshunter.io/ios/app/casters-deck/id6759479355)

Manage your Dungeons & Dragons spells with this app. Build custom spell decks for your characters, track prepared spells, and create homebrew magic. Spend less time searching and more time casting.

**Highlights:** Spell library in card format, Character deck builder, Prepared spell tracker, Advanced spell filtering, Custom homebrew magic creation, Offline functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DriveThruRPG Library free?

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

### Is Caster's Deck free?

Caster's Deck is free to download, with no in-app purchases.

### Which has better reviews, DriveThruRPG Library or Caster's Deck?

Caster's Deck is rated higher. DriveThruRPG Library averages 3.3 out of 5 from 12 ratings, while Caster's Deck averages 5.0 from 1 ratings.

### Do DriveThruRPG Library or Caster's Deck have ads?

Neither DriveThruRPG Library nor Caster's Deck shows ads.

### Which is updated more often, DriveThruRPG Library or Caster's Deck?

DriveThruRPG Library ships an update every 9 months, and Caster's Deck fortnightly. Most recently, DriveThruRPG Library was updated on October 15, 2026 and Caster's Deck on October 8, 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.*