# Electrical Calc Pro vs Watts 2.0

The clearest difference is price: Watts 2.0 at Free against Electrical Calc Pro's $19.99. Watts 2.0 also leads on update cadence (every 2 weeks vs every 5 weeks) and ratings volume (5 vs 1). Electrical Calc Pro's advantage is rating (5.0 vs 3.0) and review sentiment (60% vs 50%). On ads, in-app purchases and device support there is nothing between them.

Watts 2.0 is free to download; Electrical Calc Pro costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Electrical Calc Pro holds the better App Store score, 5.0 against 3.0. That said, the two scores are not equally well evidenced: Watts 2.0 has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Electrical Calc Pro's written reviews are positive against 50% of Watts 2.0's.

Electrical Calc Pro ships an update every 5 weeks, Watts 2.0 every 2 weeks. The most recent releases landed on October 5, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Electrical Calc Pro | Watts 2.0 |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/electrical-calc-pro/id514793318/reviews)** | [3.0 (5 ratings)](https://appshunter.io/ios/app/watts-20/id1634255529/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 22 MB | 83 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Snappy Appz Inc.](https://appshunter.io/developer/375591377) | [2301114 Alberta Ltd](https://appshunter.io/developer/1557370301) |

## What reviewers say

### Electrical Calc Pro

[App page](https://appshunter.io/ios/app/electrical-calc-pro/id514793318)

This professional electrical application calculates common electrical problems, including wire sizing, conduit sizing, and fusing based on the Canadian Electric Code. It offers advanced features for motor loads, transformers, feeders, and voltage drop calculations, making it an essential tool for electricians and engineers.

**Highlights:** Wire and conduit sizing, Motor and transformer load calculations, Voltage drop calculations, Panel legend creation and export, Allowable ampacity and derating, Box fill calculations

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

**In-app purchases:** none


### Watts 2.0

[App page](https://appshunter.io/ios/app/watts-20/id1634255529)

Control Watts 2.0 LED controllers with this application. Adjust lighting settings and manage your devices.

**Highlights:** Control LED controllers, Manage lighting settings, Device management

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Electrical Calc Pro free?

Electrical Calc Pro costs $19.99, with no in-app purchases.

### Is Watts 2.0 free?

Watts 2.0 is free to download, with no in-app purchases.

### Which has better reviews, Electrical Calc Pro or Watts 2.0?

Electrical Calc Pro is rated higher. Electrical Calc Pro averages 5.0 out of 5 from 1 ratings, while Watts 2.0 averages 3.0 from 5 ratings.

### Do Electrical Calc Pro or Watts 2.0 have ads?

Neither Electrical Calc Pro nor Watts 2.0 shows ads.

### Which is updated more often, Electrical Calc Pro or Watts 2.0?

Electrical Calc Pro ships an update every 5 weeks, and Watts 2.0 every 2 weeks. Most recently, Electrical Calc Pro was updated on October 5, 2026 and Watts 2.0 on October 19, 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.*