# VDrop vs AWG Calculator

The clearest difference is in-app purchases: VDrop at none against AWG Calculator's 33. VDrop also leads on rating (5.0 vs 4.7) and iOS requirement (10.0 vs 17.6). AWG Calculator's advantage is update cadence (every 4 weeks vs every 13 months) and ratings volume (70 vs 4). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. AWG Calculator sells 33 in-app purchases, starting at $6.99 per month. VDrop asks for nothing beyond the download.

VDrop holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: AWG Calculator has 70 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

VDrop ships an update every 13 months, AWG Calculator every 4 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | VDrop | AWG Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/vdrop/id1461666751/reviews)** | [4.7 (70 ratings)](https://appshunter.io/ios/app/awg-calculator-wire-size/id1607173204/reviews) |
| Number of ratings | 4 | **70** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 59 MB |
| Requires iOS | **10.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nebulous LLC](https://appshunter.io/developer/1448637140) | [Melchisedec Martinez Rodriguez](https://appshunter.io/developer/1534398511) |

## What reviewers say

### VDrop

[App page](https://appshunter.io/ios/app/vdrop/id1461666751)

This utility calculates voltage drop for electrical systems up to 600V. It provides detailed calculation outputs to help users verify results and build confidence in their electrical work. Custom voltage inputs are supported.

**Highlights:** Voltage drop calculations, Supports up to 600V, Custom voltage input, Detailed calculation outputs, User confidence building

**Features:** macOS Compatibility

**In-app purchases:** none


### AWG Calculator

[App page](https://appshunter.io/ios/app/awg-calculator-wire-size/id1607173204)

This professional tool provides electricians with accurate, code-based electrical calculations for wire sizing, voltage drop, circuit breakers, and more. It includes NEC® code references and specialized calculations for various systems. Save time and ensure accuracy in the field or during planning.

**Highlights:** Wire size (AWG) calculations, Voltage drop calculation, Circuit breaker sizing, NEC® 2023/2026 searchable articles, Material and temperature customization, Electrical estimation tools

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

**In-app purchases (33)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All access 1 Month | $6.99 | per month |
| All Access 1 Year | $59.99 | per year |
| Bathroom Information | $0.99 | one-time |
| Single Motor Calculation | $0.99 | one-time |
| Get 100 Coins Now! | $0.99 | one-time |
| Breaker Panel Info | $0.99 | one-time |
| Lighting Install Info | $0.99 | one-time |
| Unblock Informative Annex D | $1.99 | one-time |
| Informative Annex E NEC 2023 | $1.99 | one-time |
| Motor Windings and Connections | $1.99 | one-time |
| Optional Method Calculation | $1.99 | one-time |
| Common Electrical Distribution | $1.99 | one-time |
| Ohms Law Calculation | $1.99 | one-time |
| Standard Method Calculation | $1.99 | one-time |
| Breaker Size Calculation | $1.99 | one-time |
| Conduit Size Calculation | $1.99 | one-time |
| NEC Chapter 1 | $1.99 | one-time |
| NEC FAQs | $1.99 | one-time |
| Electric Current Calculation | $1.99 | one-time |
| 2023 NEC Informative Annex | $1.99 | one-time |
| 2023 NEC Informative Annex G | $1.99 | one-time |
| Electrical Tables | $2.99 | one-time |
| 2023 NEC Chapter 2 | $2.99 | one-time |
| Box Fill Calculation | $2.99 | one-time |
| Electrical Estimate Creator | $2.99 | one-time |
| Wire Checker | $3.99 | one-time |
| Ampacity of conductors | $3.99 | one-time |
| 2023 NEC Chapter 3 | $4.99 | one-time |
| Compact Mode for Branch, Fe... | $4.99 | one-time |
| Exterior Install Info | $4.99 | one-time |
| Series Circuit Calculation | $7.99 | one-time |
| Parallel Circuit Calculation | $9.99 | one-time |
| Arc Welder Calculation | $12.99 | one-time |


## Frequently asked questions

### Is VDrop free?

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

### Is AWG Calculator free?

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

### Which has better reviews, VDrop or AWG Calculator?

VDrop is rated higher. VDrop averages 5.0 out of 5 from 4 ratings, while AWG Calculator averages 4.7 from 70 ratings.

### Do VDrop or AWG Calculator have ads?

Neither VDrop nor AWG Calculator shows ads.

### Which is updated more often, VDrop or AWG Calculator?

VDrop ships an update every 13 months, and AWG Calculator every 4 weeks. Most recently, VDrop was updated on October 24, 2026 and AWG Calculator on October 24, 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.*