Phase Calc vs n Matrix Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Phase Calc
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.
- 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
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Phase Calc for iOS is an advanced engineering app for most electrical designs, expecially symmetrical component analysis and three-phase power system calculations. Built for students, teachers, technicians, and engineers, it combines a polished mobile experience with a powerful technical workflow for fast, accurate analysis of unbalanced three-phase systems in the field, lab, or classroom. The app performs both phase-to-sequence and sequence-to-phase transformations, with support for inputs in polar and rectangular form. It quickly resolves three unbalanced phase quantities into their positive-, negative-, and zero-sequence components, making it a practical tool for protection studies, fault analysis, system modeling, relay validation, and coursework. More than a single-purpose calculator, Phase Calc is packed with specialized calculators, technical reference libraries, and built-in formulas to support everyday power systems work. Whether you are checking values, reviewing theory, or working through engineering problems more efficiently, the app puts essential tools in one place. Results can be exported instantly, including vector data for plotting and graphical analysis, as well as technical report exports for documentation, review, and sharing. With powerful capabilities in a streamlined interface, Phase Calc delivers a complete mobile toolkit for three-phase analysis on iPhone and iPad.
n Matrix Calculator
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Application Functions 1. Calculation for a single matrix Find determinant, inverse matrix, eigenvalues, and eigenvectors of any square matrix. 2. Matrix calculation using expression Input any square matrix to A, B, C, and D, respectively, and calculate values based on mathematical expressions such as (8A-6B)*1C+9D 3. Calculation of simultaneous equations Calculates simultaneous equations expressed in matrix form as Ax = b, where A is a square matrix and b is a vertical vector. Features of the application 1. All functions support complex numbers. Complex matrices, eigenvalues and eigenvectors are supported even when they are complex numbers. 2. Arbitrary square matrices can be calculated. Supports not only basic matrices such as 2 x 2 and 3 x 3, but also high-dimensional matrices such as 100 x 100. 3. Copy and paste from spreadsheet software Calculations can be performed by copying and pasting cells from spreadsheets such as Excel and Numbers. Please be careful of line breaks after pasting. 4. Fast calculation speed Even for a 100 x 100 matrix, determinant, inverse matrix, rank, eigenvalue, and eigenvector can be calculated in only 1 second. 5. Can be used offline You can perform matrix calculations anytime, anywhere. How to use 1. In case of inputting an actual matrix or CSV Use newlines and commas to represent matrices as follows. 2,6,7 8,11,3.5 65,3,11 Please do not include spaces. 2. In case of executable matrix and Space input Use line breaks and commas to represent matrices as follows 2 6 7 8 11 3.5 65 3 11 This input method allows you to copy and paste spreadsheet cells Do not include more than two spaces. 3. For complex matrix and CSV input Use line breaks and commas to represent matrices as follows 1+2i,-3i 4,0 Please do not include spaces. Please add coefficients, even if they are i or -i i → 1i -i → -1i 4. For complex matrix and Space input Use line breaks and commas to represent matrices as follows 1+2i -3i 4 0 Do not put more than two spaces. Please add a coefficient, even if it is i or -i i → 1i -i → -1i
Screenshots
Verdict
Phase Calc and n Matrix Calculator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Phase Calc costs $1.99 and n Matrix Calculator $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, n Matrix Calculator monthly. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | Phase Calc | n Matrix Calculator |
|---|---|---|
| Price | $1.99 | $1.99 |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Donnie Herman | Sota Takasugi |
In-app purchases
Phase Calc
No in-app purchases
n Matrix Calculator
No in-app purchases
Questions
Is Phase Calc free?
Is n Matrix Calculator free?
Do Phase Calc or n Matrix Calculator have ads?
Which is updated more often, Phase Calc or n Matrix Calculator?
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