VDrop vs AWG Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VDrop
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.
- Voltage drop calculations
- Supports up to 600V
- Custom voltage input
- Detailed calculation outputs
- User confidence building
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600V and less voltage drop calculator. Outputs provide the user details from the calculations to allow users to perform due diligence and develop confidence in the results. Custom voltages may be inputted (600V and less) also.
AWG Calculator
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.
- Wire size (AWG) calculations
- Voltage drop calculation
- Circuit breaker sizing
- NEC® 2023/2026 searchable articles
- Material and temperature customization
- Electrical estimation tools
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Professional Electrical Calculations Made Simple AWG Calculator is a professional tool designed for electricians who need accurate, code-based electrical calculations in the field, during inspections, or while planning installations. Perform critical calculations quickly and with confidence, following NEC® standards. Key Features • Wire size (AWG) calculations • Voltage drop calculation • Adjusted ampacity based on installation conditions • Circuit breaker sizing • Equipment grounding conductor sizing • Conduit and box fill calculations • Branch, feeder, and service calculations • Residential load calculations • Ohm’s Law calculations • Material and temperature customization NEC® Code & Reference • Professionally designed NEC® tables • Searchable NEC® FAQs for practical interpretation • Service protection calculations over 100A Specialized Calculations • Motor calculations • Fire pump calculations • Arc welder calculations • Air conditioning (HVAC) electrical calculations Additional Tools • Electrical estimation tools • Series and parallel circuit references • Miscellaneous electrical topics • ChatAWG – offline assistance (not AI-dependent) AWG Calculator helps electricians save time, avoid errors, and work with confidence, whether on residential, commercial, or industrial electrical systems. Subscription Options • All Access – Monthly (1 month) • All Access – Annual (1 year) License Agreement: http://www.apple.com/legal/itunes/appstore/dev/stdeula
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | VDrop | AWG Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.7 (70 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 70 — better |
| Update frequency | Every 13 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 13 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Nebulous LLC | Melchisedec Martinez Rodriguez |
Customer experience
VDrop
AWG Calculator
In-app purchases
VDrop
No in-app purchases
AWG Calculator
- All access 1 Month7 Days trial$6.991 Month
- All Access 1 Year7 Days trial$59.991 Year
- Bathroom Information$0.99
- Single Motor Calculation$0.99
- Get 100 Coins Now!$0.99
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- Breaker Panel Info$0.99
- Lighting Install Info$0.99
- Unblock Informative Annex D$1.99
- Informative Annex E NEC 2023$1.99
- Motor Windings and Connections$1.99
- Optional Method Calculation$1.99
- Common Electrical Distribution$1.99
- Ohms Law Calculation$1.99
- Standard Method Calculation$1.99
- Breaker Size Calculation$1.99
- Conduit Size Calculation$1.99
- NEC Chapter 1$1.99
- NEC FAQs$1.99
- Electric Current Calculation$1.99
- 2023 NEC Informative Annex$1.99
- 2023 NEC Informative Annex G$1.99
- Electrical Tables$2.99
- 2023 NEC Chapter 2$2.99
- Box Fill Calculation$2.99
- Electrical Estimate Creator$2.99
- Wire Checker$3.99
- Ampacity of conductors$3.99
- 2023 NEC Chapter 3$4.99
- Compact Mode for Branch, Fe...$4.99
- Exterior Install Info$4.99
- Series Circuit Calculation$7.99
- Parallel Circuit Calculation$9.99
- Arc Welder Calculation$12.99
Questions
Is VDrop free?
Is AWG Calculator free?
Which has better reviews, VDrop or AWG Calculator?
Do VDrop or AWG Calculator have ads?
Which is updated more often, VDrop or AWG Calculator?
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