# System Designer vs MobiDB Database

The clearest difference is rating: System Designer at 4.4 against MobiDB Database's 3.9. System Designer also leads on in-app purchases (none vs 10) and ads (none vs shown). MobiDB Database's advantage is ratings volume (82 vs 17) and iOS requirement (13.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. MobiDB Database sells 8 one-off in-app purchases. System Designer asks for nothing beyond the download.

System Designer holds the better App Store score, 4.4 against 3.9. Both are backed by a comparable volume of ratings — 17 and 82 respectively. Written reviews point the same way: 78% of System Designer's written reviews are positive against 54% of MobiDB Database's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | System Designer | MobiDB Database |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (17 ratings)](https://appshunter.io/ios/app/system-designer/id1132983280/reviews)** | [3.9 (82 ratings)](https://appshunter.io/ios/app/mobidb-database/id1450593435/reviews) |
| Number of ratings | 17 | **82** |
| Positive reviews | **77.8% of reviews** | 54.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 109 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erwan Carriou](https://appshunter.io/developer/1102494853) | [Vitalii Kornei](https://appshunter.io/developer/1450593434) |

## What reviewers say

### 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


### MobiDB Database

[App page](https://appshunter.io/ios/app/mobidb-database/id1450593435)

This offline database application allows users to organize, manage, and search data with cloud synchronization. It supports data exchange with popular spreadsheet and database software, and offers a visual form designer for attractive data presentation. Ideal for both personal and team use, it facilitates collaboration and offline work.

**Highlights:** Offline database functionality, Cloud synchronization (Dropbox, OneDrive, Google Drive), Visual form designer, CSV and Excel import/export, Automatic conflict resolution, Pre-set database templates, Over 20 field types

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 year Premium subscription | $7.99 | one-time |
| Basic license trial-discounted | $13.99 | one-time |
| Premium license trial-discount | $17.99 | one-time |
| Premium license | $21.99 | one-time |
| Premium license base price | $21.99 | one-time |
| Ultimate trial-discounted | $69.99 | one-time |
| Ultimate license | $84.99 | one-time |
| Ultimate license base price | $84.99 | one-time |


## Frequently asked questions

### Is System Designer free?

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

### Is MobiDB Database free?

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

### Which has better reviews, System Designer or MobiDB Database?

System Designer is rated higher. System Designer averages 4.4 out of 5 from 17 ratings, while MobiDB Database averages 3.9 from 82 ratings.

### Do System Designer or MobiDB Database have ads?

MobiDB Database shows ads; System Designer does not.

### Which is updated more often, System Designer or MobiDB Database?

System Designer ships an update monthly, and MobiDB Database monthly. Most recently, System Designer was updated on September 18, 2026 and MobiDB Database 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.*