# iCircuit vs LogMaster

The clearest difference is price: LogMaster at Free against iCircuit's $12.99. LogMaster also leads on rating (5.0 vs 3.8) and review sentiment (100% vs 61%). iCircuit's advantage is ratings volume (134 vs 2) and iOS requirement (12.2 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

LogMaster is free to download; iCircuit costs $12.99 up front. iCircuit sells 2 in-app purchases, starting at $1.99 per month and LogMaster sells 3 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

LogMaster holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: iCircuit has 134 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 61% of iCircuit's written reviews are positive against 100% of LogMaster's.

iCircuit ships an update every 3 weeks, LogMaster weekly. The most recent releases landed on September 30, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | iCircuit | LogMaster |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | [3.8 (134 ratings)](https://appshunter.io/ios/app/icircuit/id383359044/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/logmaster-sawmill-optimizer/id6793629615/reviews)** |
| Number of ratings | **134** | 2 |
| Positive reviews | 61.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Paid** | Subscription |
| Size | 126 MB | 47 MB |
| Requires iOS | **12.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [Bunyan Software](https://appshunter.io/developer/1895964416) |

## What reviewers say

### iCircuit

[App page](https://appshunter.io/ios/app/icircuit/id383359044)

Design and simulate analog and digital electronic circuits in real-time. This app offers a comprehensive component library, built-in test equipment, and the ability to create custom elements. It's ideal for learning, prototyping, and validating designs without physical components.

**Highlights:** Real-time circuit simulation, Extensive component library (300+), Built-in test equipment (multimeter, oscilloscope), Programmable Arduino and PIC microcontroller support, Custom element creation and sharing, Audio simulation

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iCircuit Pro (Monthly) | $1.99 | per month |
| iCircuit Pro (Yearly) | $14.99 | per year |

**What reviewers like**

- 🚀 Great for learning and testing
- 👍 Intuitive and easy to use
- 💡 Programmable Arduino integration
- 👍 Useful for hobbyists and students

**What reviewers complain about**

- 🐛 Buggy and crashes frequently
- 🔧 Difficult to edit and delete components
- 🔧 Limited component library
- 🔧 Inaccurate simulation results in some cases

**Reported bugs**

- Oscilloscope and meter functions not working properly
- Saving and loading circuits can be unreliable
- Inconsistent behavior when rotating/flipping components
- Crashes when working with larger or more complex circuits

**Requested features**

- More components (e.g. transformers, triodes, MOSFETs)
- Ability to create custom components
- Frequency domain analysis (Bode plots, FFT)
- Improved wiring and component placement controls
- Better support for AC circuits and motors


### LogMaster

[App page](https://appshunter.io/ios/app/logmaster-sawmill-optimizer/id6793629615)

Instantly measure logs and get optimal cutting solutions using LiDAR technology. Reduce waste and improve lumber quality for portable sawmills. Works offline and keeps all data on your device.

**Highlights:** LiDAR log scanning, Instant cutting solutions, Optimized lumber yield, Offline operation, Data stays on device, Portable sawmill focus

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $14.99 | per month |
| 6 Month | $79.99 | per 6 months |
| Annual | $149.99 | per year |


## Frequently asked questions

### Is iCircuit free?

iCircuit costs $12.99, and also offers in-app purchases.

### Is LogMaster free?

LogMaster is free to download, with in-app purchases available.

### Which has better reviews, iCircuit or LogMaster?

LogMaster is rated higher. iCircuit averages 3.8 out of 5 from 134 ratings, while LogMaster averages 5.0 from 2 ratings.

### Do iCircuit or LogMaster have ads?

Neither iCircuit nor LogMaster shows ads.

### Which is updated more often, iCircuit or LogMaster?

iCircuit ships an update every 3 weeks, and LogMaster weekly. Most recently, iCircuit was updated on September 30, 2026 and LogMaster on September 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.*