# RCircuitCalc vs KNIPEX

The clearest difference is review sentiment: KNIPEX at 100% against RCircuitCalc's 0%. KNIPEX also leads on price (Free vs $1.99) and rating (4.9 vs 1.0). RCircuitCalc's advantage is device support (3 vs 1) and iOS requirement (13.6 vs 16.4). On ads and in-app purchases there is nothing between them.

KNIPEX is free to download; RCircuitCalc costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KNIPEX holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: KNIPEX has 149 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of RCircuitCalc's written reviews are positive against 100% of KNIPEX's.

RCircuitCalc ships an update every 17 months, KNIPEX every 3 months. The most recent releases landed on October 2, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | RCircuitCalc | KNIPEX |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (5 ratings)](https://appshunter.io/ios/app/rcircuitcalc/id857468508/reviews) | **[4.9 (149 ratings)](https://appshunter.io/ios/app/knipex/id1611568540/reviews)** |
| Number of ratings | 5 | **149** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 3 months** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 50 MB |
| Requires iOS | **13.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TAKAHIKO FUKUYAMA](https://appshunter.io/developer/857468511) | [KNIPEX](https://appshunter.io/developer/1611568542) |

## What reviewers say

### RCircuitCalc

[App page](https://appshunter.io/ios/app/rcircuitcalc/id857468508)

This app helps engineers and students design electrical and electronic circuits by calculating standard resistance values based on E-series numbers. It supports various circuit types, including voltage dividers, series, parallel, and combination circuits, and can also calculate current and power for each resistor.

**Highlights:** Calculates standard resistance values, Supports voltage dividers, series, parallel, and combination circuits, Calculates current and power for resistors, Outputs resistance values based on E-series numbers (E6, E12, E24, E48, E96), Calculations based on input voltage, output voltage, current, and resistance ratio

**Features:** macOS Compatibility

**In-app purchases:** none


### KNIPEX

[App page](https://appshunter.io/ios/app/knipex/id1611568540)

Easily locate the perfect pliers from an extensive catalog. Browse product details, save preferred items to a personal wish list, and ensure you always have the right tool for the job.

**Highlights:** Find the right pliers, Access entire product range, View product details, Save favorites to wish list

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and intuitive
- 💡 Helpful for finding the right tool
- 🚀 Fast and efficient search
- 👍 Well-organized catalog
- 💡 AR feature is innovative and useful

**What reviewers complain about**

- 💡 Could be faster in animations/transitions
- 💡 Missing video demonstrations for tools

**Requested features**

- Video demonstrations for each tool
- Ability to compare multiple products
- Direct in-app purchasing
- More applications listed in search filters


## Frequently asked questions

### Is RCircuitCalc free?

RCircuitCalc costs $1.99, with no in-app purchases.

### Is KNIPEX free?

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

### Which has better reviews, RCircuitCalc or KNIPEX?

KNIPEX is rated higher. RCircuitCalc averages 1.0 out of 5 from 5 ratings, while KNIPEX averages 4.9 from 149 ratings.

### Do RCircuitCalc or KNIPEX have ads?

Neither RCircuitCalc nor KNIPEX shows ads.

### Which is updated more often, RCircuitCalc or KNIPEX?

RCircuitCalc ships an update every 17 months, and KNIPEX every 3 months. Most recently, RCircuitCalc was updated on October 2, 2026 and KNIPEX on October 21, 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.*