# Phase Calc vs Electrical Calculation Tools

The clearest difference is update cadence: Phase Calc at every 6 weeks against Electrical Calculation Tools's every 5 months. Electrical Calculation Tools's advantage is iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Phase Calc costs $1.99 and Electrical Calculation Tools $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Phase Calc ships an update every 6 weeks, Electrical Calculation Tools every 5 months. The most recent releases landed on August 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Phase Calc | Electrical Calculation Tools |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/phase-calc/id837266300/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | Paid | — |
| Size | 13 MB | 37 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Donnie Herman](https://appshunter.io/developer/837266303) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Phase Calc

[App page](https://appshunter.io/ios/app/phase-calc/id837266300)

This advanced engineering app performs complex electrical calculations for three-phase power systems. It offers tools for students, technicians, and engineers to analyze unbalanced systems, perform sequence transformations, and access reference libraries. Results can be easily exported for documentation and sharing.

**Highlights:** Symmetrical component analysis, Three-phase power system calculations, Phase-to-sequence and sequence-to-phase transformations, Polar and rectangular input support, Specialized calculators and reference libraries, Exportable results for documentation

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

**In-app purchases:** none


### Electrical Calculation Tools

[App page](https://appshunter.io/ios/app/electrical-calculation-tools/id6446797237)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Phase Calc free?

Phase Calc costs $1.99, with no in-app purchases.

### Is Electrical Calculation Tools free?

Electrical Calculation Tools costs $1.99, with no in-app purchases.

### Do Phase Calc or Electrical Calculation Tools have ads?

Neither Phase Calc nor Electrical Calculation Tools shows ads.

### Which is updated more often, Phase Calc or Electrical Calculation Tools?

Phase Calc ships an update every 6 weeks, and Electrical Calculation Tools every 5 months. Most recently, Phase Calc was updated on August 1, 2026 and Electrical Calculation Tools on September 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.*