# Singular vs RefMind

The clearest difference is in-app purchases: RefMind at none against Singular's 3. RefMind also leads on ads (none vs shown) and iOS requirement (15.0 vs 18.4). Singular's advantage is update cadence (daily vs every 4 days). On price 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. RefMind asks for nothing beyond the download.

Singular ships an update daily, RefMind every 4 days. The most recent releases landed on September 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Singular | RefMind |
| --- | --- | --- |
| 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 | **No** |
| Update frequency | **Daily** | Every 4 days |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 34 MB |
| Requires iOS | 18.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ali Mert TUFEKCI](https://appshunter.io/developer/1483311309) | [Dai Phan](https://appshunter.io/developer/1462563314) |

## 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 |


### RefMind

[App page](https://appshunter.io/ios/app/refmind/id6792407235)

**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 RefMind free?

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

### Do Singular or RefMind have ads?

Singular shows ads; RefMind does not.

### Which is updated more often, Singular or RefMind?

Singular ships an update daily, and RefMind every 4 days. Most recently, Singular was updated on September 27, 2026 and RefMind on October 6, 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.*