# Series Parallel Circuit Solver vs Quad Calcs

The clearest difference is update cadence: Quad Calcs at every 2 weeks against Series Parallel Circuit Solver's every 24 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Series Parallel Circuit Solver ships an update every 24 months, Quad Calcs every 2 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Series Parallel Circuit Solver | Quad Calcs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/series-parallel-circuit-solver/id6737332345/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 24 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 35 MB | 36 MB |
| Requires iOS | **15.5** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Series Parallel Circuit Solver

[App page](https://appshunter.io/ios/app/series-parallel-circuit-solver/id6737332345)

Calculate resistors, capacitors, and inductors in series and parallel circuits. This tool simplifies complex electrical circuit analysis for professionals and students, providing instant, accurate results for various configurations.

**Highlights:** Series and parallel calculations, Resistor, capacitor, and inductor calculation, Mixed circuit solver, User-friendly interface, Instant results, Circuit analysis

**In-app purchases:** none


### Quad Calcs

[App page](https://appshunter.io/ios/app/quad-calcs/id6741951453)

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

**In-app purchases:** none


## Frequently asked questions

### Is Series Parallel Circuit Solver free?

Series Parallel Circuit Solver is free to download, with no in-app purchases.

### Is Quad Calcs free?

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

### Do Series Parallel Circuit Solver or Quad Calcs have ads?

Both Series Parallel Circuit Solver and Quad Calcs show ads.

### Which is updated more often, Series Parallel Circuit Solver or Quad Calcs?

Series Parallel Circuit Solver ships an update every 24 months, and Quad Calcs every 2 weeks. Most recently, Series Parallel Circuit Solver was updated on October 24, 2026 and Quad Calcs on October 25, 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.*