# iCircuit 3D vs Optical Flow Drone Navigation

The clearest difference is price: Optical Flow Drone Navigation at Free against iCircuit 3D's $12.99. Optical Flow Drone Navigation also leads on update cadence (every 4 days vs every 8 months). iCircuit 3D's advantage is in-app purchases (none vs 1) and device support (4 vs 2). On ads there is nothing between them.

Optical Flow Drone Navigation is free to download; iCircuit 3D costs $12.99 up front. Optical Flow Drone Navigation sells 1 one-off in-app purchase. iCircuit 3D asks for nothing beyond the download.

iCircuit 3D ships an update every 8 months, Optical Flow Drone Navigation every 4 days. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | iCircuit 3D | Optical Flow Drone Navigation |
| --- | --- | --- |
| Price | $12.99 | **Free** |
| Rating | **[4.1 (72 ratings)](https://appshunter.io/ios/app/icircuit-3d/id1539977373/reviews)** | — |
| Number of ratings | **72** | — |
| Positive reviews | 40.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 142 MB | 8 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [EMIRHAN CELIK](https://appshunter.io/developer/1815124388) |

## What reviewers say

### iCircuit 3D

[App page](https://appshunter.io/ios/app/icircuit-3d/id1539977373)

Design, build, and test electronic circuits in a realistic 3D environment. This app offers a virtual workbench with over 150 simulated parts and tools to experiment with circuits, diagnose issues, and visualize component behavior.

**Highlights:** 3D virtual workbench, Real-time circuit simulation, 150+ physically simulated parts, Realistic component behavior, Magic smoke failure simulation, Import custom 3D models, Symbolic component library

**Features:** Vision Pro support

**In-app purchases:** none


### Optical Flow Drone Navigation

[App page](https://appshunter.io/ios/app/optical-flow-drone-navigation/id6746093813)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MAVLink Mode Unlock | $1.99 | one-time |


## Frequently asked questions

### Is iCircuit 3D free?

iCircuit 3D costs $12.99, with no in-app purchases.

### Is Optical Flow Drone Navigation free?

Optical Flow Drone Navigation is free to download, with in-app purchases available.

### Do iCircuit 3D or Optical Flow Drone Navigation have ads?

Neither iCircuit 3D nor Optical Flow Drone Navigation shows ads.

### Which is updated more often, iCircuit 3D or Optical Flow Drone Navigation?

iCircuit 3D ships an update every 8 months, and Optical Flow Drone Navigation every 4 days. Most recently, iCircuit 3D was updated on October 14, 2026 and Optical Flow Drone Navigation on October 1, 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.*