# Circuit Colors vs Unity Build Field App

The clearest difference is price: Unity Build Field App at Free against Circuit Colors's $1.99. Unity Build Field App also leads on update cadence (monthly vs every 9 months) and iOS requirement (15.0 vs 17.6). Circuit Colors's advantage is chart position (#103 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Unity Build Field App is free to download; Circuit Colors costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Circuit Colors ships an update every 9 months, Unity Build Field App monthly. The most recent releases landed on November 10, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Circuit Colors | Unity Build Field App |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.7 (25 ratings)](https://appshunter.io/ios/app/circuit-colors/id412920859/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Paid | — |
| Best chart rank | **#103** | — |
| Size | 2 MB | 36 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Francisco Alcala](https://appshunter.io/developer/339407925) | [Lumpy Studio LLC](https://appshunter.io/developer/1883679112) |

## What reviewers say

### Circuit Colors

[App page](https://appshunter.io/ios/app/circuit-colors/id412920859)

**Currently charting:** #103 Top Paid · Productivity (US App Store)

Quickly determine the phase color for any circuit number across various international electrical systems. This app simplifies electrical work by eliminating the need for manual calculations or reference sheets.

**Highlights:** Determine phase color by circuit number, Supports US, Canada, EU, and UK systems, Add unlimited electrical panels, Configurable single or three-phase, Customizable phase color combinations, Multiple circuit numbering styles, Supports 4 to 1000 circuits

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Unity Build Field App

[App page](https://appshunter.io/ios/app/unity-build-field-app/id6760295040)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circuit Colors free?

Circuit Colors costs $1.99, with no in-app purchases.

### Is Unity Build Field App free?

Unity Build Field App is free to download, with no in-app purchases.

### Do Circuit Colors or Unity Build Field App have ads?

Neither Circuit Colors nor Unity Build Field App shows ads.

### Which is updated more often, Circuit Colors or Unity Build Field App?

Circuit Colors ships an update every 9 months, and Unity Build Field App monthly. Most recently, Circuit Colors was updated on November 10, 2026 and Unity Build Field App on November 9, 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.*