# Circuit Laboratory HD vs FluidProps

The clearest difference is update cadence: FluidProps at every 3 days against Circuit Laboratory HD's every 27 months. FluidProps also leads on price ($0.99 vs $6.99) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

Circuit Laboratory HD costs $6.99 and FluidProps $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Circuit Laboratory HD ships an update every 27 months, FluidProps every 3 days. The most recent releases landed on October 29, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Circuit Laboratory HD | FluidProps |
| --- | --- | --- |
| Price | $6.99 | **$0.99** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 180 MB | 105 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fabrizio Boco](https://appshunter.io/developer/466239616) | [Daniel Medeiros](https://appshunter.io/developer/1091004600) |

## What reviewers say

### Circuit Laboratory HD

[App page](https://appshunter.io/ios/app/circuit-laboratory-hd/id1056997109)

This app allows users to design and analyze electronic circuits graphically. It supports various analysis types including DC, AC, multifrequency AC, and transient, with a wide range of components and measuring instruments.

**Highlights:** Graphical circuit design, DC analysis, AC analysis, Multifrequency AC analysis, Transient analysis, Component library, Measuring instruments

**Features:** macOS Compatibility

**In-app purchases:** none


### FluidProps

[App page](https://appshunter.io/ios/app/fluidprops/id1616409860)

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

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Laboratory HD free?

Circuit Laboratory HD costs $6.99, with no in-app purchases.

### Is FluidProps free?

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

### Do Circuit Laboratory HD or FluidProps have ads?

Neither Circuit Laboratory HD nor FluidProps shows ads.

### Which is updated more often, Circuit Laboratory HD or FluidProps?

Circuit Laboratory HD ships an update every 27 months, and FluidProps every 3 days. Most recently, Circuit Laboratory HD was updated on October 29, 2026 and FluidProps on October 17, 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.*