# iSlipstick RF vs Circuit Laboratory

The clearest difference is review sentiment: iSlipstick RF at 100% against Circuit Laboratory's 0%. iSlipstick RF also leads on price (Free vs $5.99) and rating (4.7 vs 3.0). Circuit Laboratory's advantage is iOS requirement (13.0 vs 16.6). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

iSlipstick RF is free to download; Circuit Laboratory costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iSlipstick RF holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 100% of iSlipstick RF's written reviews are positive against 0% of Circuit Laboratory's.

iSlipstick RF ships an update every 10 months, Circuit Laboratory every 12 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iSlipstick RF | Circuit Laboratory |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/islipstick-rf/id351775311/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/circuit-laboratory/id1042205580/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 12 months |
| Monetization | **Free** | Paid |
| Size | 43 MB | 128 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sam Virgillo](https://appshunter.io/developer/324560825) | [Fabrizio Boco](https://appshunter.io/developer/466239616) |

## What reviewers say

### iSlipstick RF

[App page](https://appshunter.io/ios/app/islipstick-rf/id351775311)

This app provides a comprehensive suite of calculators and converters specifically designed for radio frequency (RF) engineers and technicians. It includes tools for path loss, antenna gain, intermodulation, and standard electrical calculations, along with various unit conversions.

**Highlights:** RF-specific calculators, Standard electrical calculators, Unit converters, Path loss calculation, Intermodulation analysis, Antenna gain and beamwidth

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

**In-app purchases:** none


### Circuit Laboratory

[App page](https://appshunter.io/ios/app/circuit-laboratory/id1042205580)

Analyze electronic circuits with DC, AC, multifrequency AC, and transient analysis. Draw circuits graphically, modify component parameters, and view voltage and current graphs. Supports various components and offers video tutorials for each.

**Highlights:** DC, AC, Multifrequency AC, and Transient Analysis, Graphical circuit drawing, Component parameter editing, Voltage and current graphing, Support for diverse electronic components, Circuit saving and sharing, Video tutorials for components

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

**In-app purchases:** none


## Frequently asked questions

### Is iSlipstick RF free?

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

### Is Circuit Laboratory free?

Circuit Laboratory costs $5.99, with no in-app purchases.

### Which has better reviews, iSlipstick RF or Circuit Laboratory?

iSlipstick RF is rated higher. iSlipstick RF averages 4.7 out of 5 from 3 ratings, while Circuit Laboratory averages 3.0 from 2 ratings.

### Do iSlipstick RF or Circuit Laboratory have ads?

Neither iSlipstick RF nor Circuit Laboratory shows ads.

### Which is updated more often, iSlipstick RF or Circuit Laboratory?

iSlipstick RF ships an update every 10 months, and Circuit Laboratory every 12 months. Most recently, iSlipstick RF was updated on October 23, 2026 and Circuit Laboratory on October 24, 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.*