# Prysmian Group Voltage Drop vs bluTime

The clearest difference is update cadence: bluTime at every 2 weeks against Prysmian Group Voltage Drop's every 7 months. Prysmian Group Voltage Drop's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Prysmian Group Voltage Drop ships an update every 7 months, bluTime every 2 weeks. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Prysmian Group Voltage Drop | bluTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/prysmian-group-voltage-drop/id847894136/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 8 MB | 56 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Prysmian Group](https://appshunter.io/developer/914872756) | [Blue Banyan Solutions, Inc.](https://appshunter.io/developer/1689230138) |

## What reviewers say

### Prysmian Group Voltage Drop

[App page](https://appshunter.io/ios/app/prysmian-group-voltage-drop/id847894136)

Calculate maximum circuit distance and minimum conductor size for required voltage drop. Designed for electrical professionals, it provides detailed information on conductor size, voltage loss, and amperage based on NEC standards.

**Highlights:** Calculate Maximum Circuit Distance, Determine Minimum Conductor Size, View Actual Voltage Loss, NEC Code Selection (2011, 2014, 2017), Metric or Standard Conductors, Amperage Calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### bluTime

[App page](https://appshunter.io/ios/app/blutime/id6449465249)

**In-app purchases:** none


## Frequently asked questions

### Is Prysmian Group Voltage Drop free?

Prysmian Group Voltage Drop is free to download, with no in-app purchases.

### Is bluTime free?

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

### Do Prysmian Group Voltage Drop or bluTime have ads?

Neither Prysmian Group Voltage Drop nor bluTime shows ads.

### Which is updated more often, Prysmian Group Voltage Drop or bluTime?

Prysmian Group Voltage Drop ships an update every 7 months, and bluTime every 2 weeks. Most recently, Prysmian Group Voltage Drop was updated on October 23, 2026 and bluTime on October 27, 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.*