# Devil App Builder vs Preview App

The clearest difference is price: Devil App Builder at Free against Preview App's $1.99. Devil App Builder also leads on update cadence (every 2 weeks vs every 13 months) and iOS requirement (13.0 vs 15.6). Preview App's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Devil App Builder is free to download; Preview App costs $1.99 up front. Devil App Builder sells 2 in-app purchases, starting at $24.99 per year. Preview App asks for nothing beyond the download.

Devil App Builder ships an update every 2 weeks, Preview App every 13 months. Both last shipped on September 21, 2026.

## The numbers

| Metric | Devil App Builder | Preview App |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 13 months |
| Monetization | Freemium | — |
| Size | 79 MB | 8 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mondayless Inc.](https://appshunter.io/developer/643833415) | [Cangmu Technology Co., Ltd](https://appshunter.io/developer/1736424342) |

## What reviewers say

### Devil App Builder

[App page](https://appshunter.io/ios/app/devil-app-builder/id1540234300)

Create apps quickly and easily by linking Sketch for screen design and the Devil Web Console for coding. Learn to code and build your own applications effortlessly.

**Highlights:** Easy app development, Sketch integration for screen design, Devil Web Console for coding, Learn to code, Build apps quickly

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Membership | $24.99 | per year |
| A month | $27.99 | one-time |


### Preview App

[App page](https://appshunter.io/ios/app/preview-app-store-simulator/id1626025800)

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

**In-app purchases:** none


## Frequently asked questions

### Is Devil App Builder free?

Devil App Builder is free to download, with in-app purchases available.

### Is Preview App free?

Preview App costs $1.99, with no in-app purchases.

### Do Devil App Builder or Preview App have ads?

Neither Devil App Builder nor Preview App shows ads.

### Which is updated more often, Devil App Builder or Preview App?

Devil App Builder ships an update every 2 weeks, and Preview App every 13 months. Most recently, Devil App Builder was updated on September 21, 2026 and Preview App on September 21, 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.*