# Series Parallel Calculator vs InboxGuard

The clearest difference is price: Series Parallel Calculator at Free against InboxGuard's $0.99. Series Parallel Calculator also leads on iOS requirement (12.0 vs 17.6). InboxGuard's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Series Parallel Calculator is free to download; InboxGuard costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Series Parallel Calculator | InboxGuard |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/series-parallel-calculator/id6737332345/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Monthly |
| Monetization | Ad-supported | — |
| Size | 30 MB | 4 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Muhammad Awais Younas](https://appshunter.io/developer/1771187232) | [Shashwat Patel](https://appshunter.io/developer/1873309489) |

## What reviewers say

### Series Parallel Calculator

[App page](https://appshunter.io/ios/app/series-parallel-calculator/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


### InboxGuard

[App page](https://appshunter.io/ios/app/inboxguard/id6762069042)

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

**In-app purchases:** none


## Frequently asked questions

### Is Series Parallel Calculator free?

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

### Is InboxGuard free?

InboxGuard costs $0.99, with no in-app purchases.

### Do Series Parallel Calculator or InboxGuard have ads?

Series Parallel Calculator shows ads; InboxGuard does not.

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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.*