# Marvel vs System Designer

The clearest difference is ratings volume: Marvel at 2.6K against System Designer's 17. Marvel also leads on rating (4.7 vs 4.4) and iOS requirement (11.0 vs 15.6). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Marvel holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Marvel has 2.6K ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 86% of Marvel's written reviews are positive against 78% of System Designer's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 3, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Marvel | System Designer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (2.6K ratings)](https://appshunter.io/ios/app/marvel-design-and-prototype/id765801658/reviews)** | [4.4 (17 ratings)](https://appshunter.io/ios/app/system-designer/id1132983280/reviews) |
| Number of ratings | **2.6K** | 17 |
| Positive reviews | **85.8% of reviews** | 77.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 69 MB | 7 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ballpark Labs Ltd](https://appshunter.io/developer/890825264) | [Erwan Carriou](https://appshunter.io/developer/1102494853) |

## What reviewers say

### Marvel

[App page](https://appshunter.io/ios/app/marvel-design-and-prototype/id765801658)

Bring your app ideas to life quickly by turning sketches and mockups into interactive prototypes. Easily design, link screens, and share your app demos on various devices. Perfect for visualizing and testing new concepts.

**Highlights:** Design apps on iPhone/iPad, Turn sketches into interactive prototypes, Link screens with touch areas, Add mockups from cloud services, Share prototypes via email, SMS, Twitter, Syncs to web account

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Quick prototyping
- 💡 Intuitive interface
- 🔍 Useful for testing ideas
- 👌 Great for beginners

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔗 Syncing and linking issues
- 🔍 Limited functionality
- 🖼️ Trouble with image handling
- 🤔 Unintuitive in some areas

**Reported bugs**

- Prototype playback not working
- Disappearing links and hotspots
- Compatibility issues with newer devices
- Trouble uploading and editing images

**Requested features**

- Add more transition options
- Improve collaboration features
- Implement scrolling and fixed elements
- Allow more customization and branding
- Integrate with more design tools


### System Designer

[App page](https://appshunter.io/ios/app/system-designer/id1132983280)

Design complex systems using a low-code platform that leverages UML standards. Generate code skeletons and manage components graphically. Run and test your system with dynamic type checking.

**Highlights:** UML-based system modeling, Code skeleton generation, Graphical component creation, MSON format for model definition, Dynamic type checking, Cross-device synchronization via GitHub

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Marvel free?

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

### Is System Designer free?

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

### Which has better reviews, Marvel or System Designer?

Marvel is rated higher. Marvel averages 4.7 out of 5 from 2.6K ratings, while System Designer averages 4.4 from 17 ratings.

### Do Marvel or System Designer have ads?

Neither Marvel nor System Designer shows ads.

### Which is updated more often, Marvel or System Designer?

Marvel ships an update monthly, and System Designer monthly. Most recently, Marvel was updated on November 3, 2026 and System Designer on October 23, 2026.

---

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