# Phase Calc vs Gnist

The clearest difference is update cadence: Gnist at fortnightly against Phase Calc's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Phase Calc costs $1.99 and Gnist $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, Gnist fortnightly. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Phase Calc | Gnist |
| --- | --- | --- |
| 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 | **Fortnightly** |
| Monetization | Paid | — |
| Size | 13 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Donnie Herman](https://appshunter.io/developer/837266303) | [VEGARD HELLAND BU](https://appshunter.io/developer/6780784892) |

## 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


### Gnist

[App page](https://appshunter.io/ios/app/gnist-electrical-calculator/id6782571492)

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

**In-app purchases:** none


## Frequently asked questions

### Is Phase Calc free?

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

### Is Gnist free?

Gnist costs $1.99, with no in-app purchases.

### Do Phase Calc or Gnist have ads?

Neither Phase Calc nor Gnist shows ads.

### Which is updated more often, Phase Calc or Gnist?

Phase Calc ships an update every 6 weeks, and Gnist fortnightly. Most recently, Phase Calc was updated on October 23, 2026 and Gnist on October 10, 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.*