# DM ENGINE vs Polymyth

The clearest difference is in-app purchases: DM ENGINE at none against Polymyth's 3. DM ENGINE also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Polymyth sells 3 one-off in-app purchases. DM ENGINE asks for nothing beyond the download.

DM ENGINE ships an update every 4 days, Polymyth weekly. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | DM ENGINE | Polymyth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (4 ratings)](https://appshunter.io/ios/app/dm-engine/id6762107792/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Free | — |
| Size | 53 MB | 66 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 9+ |
| Developer | [Che-Lun Huang](https://appshunter.io/developer/1888407385) | [Karma Coin Ltd](https://appshunter.io/developer/1675122319) |

## What reviewers say

### DM ENGINE

[App page](https://appshunter.io/ios/app/dm-engine/id6762107792)

An AI-powered Dungeon Master for D&D 5e, this app generates scenes, runs combat, and tracks your campaign. It offers a cinematic tabletop experience for solo or multiplayer games, with permanent character death and a reactive world.

**Highlights:** AI-generated scenes and NPC dialogue, Full D&D 5e combat simulation, Persistent campaign memory, Reactive living world, Permanent character death, Multiplayer support for up to four players

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

**In-app purchases:** none


### Polymyth

[App page](https://appshunter.io/ios/app/polymyth/id6770557982)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 PM Tokens | $6.99 | one-time |
| 10 PM Tokens | $15.99 | one-time |
| 20 PM Tokens | $31.99 | one-time |


## Frequently asked questions

### Is DM ENGINE free?

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

### Is Polymyth free?

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

### Do DM ENGINE or Polymyth have ads?

Neither DM ENGINE nor Polymyth shows ads.

### Which is updated more often, DM ENGINE or Polymyth?

DM ENGINE ships an update every 4 days, and Polymyth weekly. Most recently, DM ENGINE was updated on October 6, 2026 and Polymyth on October 9, 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.*