# Singular vs Database Design Basics

The clearest difference is in-app purchases: Database Design Basics at none against Singular's 3. Database Design Basics also leads on iOS requirement (15.1 vs 18.4). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Singular sells 3 in-app purchases, starting at $4.99 per 7 days. Database Design Basics asks for nothing beyond the download.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on September 27, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Singular | Database Design Basics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/singular-circuit-simulator/id6760304619/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Daily | Daily |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 37 MB |
| Requires iOS | 18.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ali Mert TUFEKCI](https://appshunter.io/developer/1483311309) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### Singular

[App page](https://appshunter.io/ios/app/singular-circuit-simulator/id6760304619)

Design, simulate, and analyze analog and logic circuits on your mobile device. Features a powerful engine, a wide range of components, and an intuitive editor. Ideal for students, makers, and professionals.

**Highlights:** Analog & logic circuit simulation, Drag-and-drop circuit editor, Real-time transient, DC, and AC analysis, 40+ electronic components, Real-time oscilloscope, Offline functionality, Export and import circuits

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Weekly Plan | $9.99 | per month |
| Yearly Plan | $29.99 | per year |


### Database Design Basics

[App page](https://appshunter.io/ios/app/database-design-basics/id6768553095)

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

**In-app purchases:** none


## Frequently asked questions

### Is Singular free?

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

### Is Database Design Basics free?

Database Design Basics is free to download, with no in-app purchases.

### Do Singular or Database Design Basics have ads?

Both Singular and Database Design Basics show ads.

### Which is updated more often, Singular or Database Design Basics?

Singular ships an update daily, and Database Design Basics daily. Most recently, Singular was updated on September 27, 2026 and Database Design Basics on September 29, 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.*