# Simple Circuit Builder vs FLOW ID Identity

The clearest difference is review sentiment: FLOW ID Identity at 100% against Simple Circuit Builder's 53%. FLOW ID Identity also leads on rating (5.0 vs 4.0). Simple Circuit Builder's advantage is update cadence (every 3 weeks vs every 2 months) and ratings volume (28 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

FLOW ID Identity holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Simple Circuit Builder has 28 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 53% of Simple Circuit Builder's written reviews are positive against 100% of FLOW ID Identity's.

Simple Circuit Builder ships an update every 3 weeks, FLOW ID Identity every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Simple Circuit Builder | FLOW ID Identity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (28 ratings)](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flow-id-identity/id1526073670/reviews)** |
| Number of ratings | **28** | 2 |
| Positive reviews | 52.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 14 MB | 154 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [David White](https://appshunter.io/developer/911163945) | [Flow ID Inc](https://appshunter.io/developer/1510244663) |

## What reviewers say

### Simple Circuit Builder

[App page](https://appshunter.io/ios/app/simple-circuit-builder/id1294616098)

This virtual lab offers a hands-on experience for learning about resistors and circuit resistance. Easily build and test series and parallel circuits, measure voltage and current, and understand the impact of component changes in real-time.

**Highlights:** Build circuits with up to eight components, Five component types, Virtual volt and amp meters, Adjustable resistor and voltage values, Real-time circuit analysis, Demonstrates 'Opens' and 'Shorts'

**Features:** macOS Compatibility

**In-app purchases:** none


### FLOW ID Identity

[App page](https://appshunter.io/ios/app/flow-id-identity/id1526073670)

Manage your digital identity securely and privately. Share only necessary information for transactions, from online purchases to in-person interactions. Offers password management and age verification.

**Highlights:** Secure digital identity management, Selective data sharing for transactions, Password management, Age verification, Immutable transaction records, Contactless interactions

**In-app purchases:** none


## Frequently asked questions

### Is Simple Circuit Builder free?

Simple Circuit Builder is free to download, with no in-app purchases.

### Is FLOW ID Identity free?

FLOW ID Identity is free to download, with no in-app purchases.

### Which has better reviews, Simple Circuit Builder or FLOW ID Identity?

FLOW ID Identity is rated higher. Simple Circuit Builder averages 4.0 out of 5 from 28 ratings, while FLOW ID Identity averages 5.0 from 2 ratings.

### Do Simple Circuit Builder or FLOW ID Identity have ads?

Neither Simple Circuit Builder nor FLOW ID Identity shows ads.

### Which is updated more often, Simple Circuit Builder or FLOW ID Identity?

Simple Circuit Builder ships an update every 3 weeks, and FLOW ID Identity every 2 months. Most recently, Simple Circuit Builder was updated on November 3, 2026 and FLOW ID Identity on November 3, 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.*