# SigiCalc vs Elements of Matter

The clearest difference is review sentiment: SigiCalc at 50% against Elements of Matter's 0%. SigiCalc also leads on price (Free vs $0.99) and rating (5.0 vs 1.0). Elements of Matter's advantage is update cadence (every 9 months vs every 48 months) and device support (5 vs 2). On ratings volume, ads and in-app purchases there is nothing between them.

SigiCalc is free to download; Elements of Matter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SigiCalc holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of SigiCalc's written reviews are positive against 0% of Elements of Matter's.

SigiCalc ships an update every 48 months, Elements of Matter every 9 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | SigiCalc | Elements of Matter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sigicalc/id522503444/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/elements-of-matter/id981951888/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 9 months** |
| Monetization | **Free** | Paid |
| Size | 3 MB | 56 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Siegware](https://appshunter.io/developer/443908611) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### SigiCalc

[App page](https://appshunter.io/ios/app/sigicalc/id522503444)

This app provides a graphical RPN calculator with an undo feature. Users can input mathematical equations and instantly visualize them with a plot. It's designed for simplicity and practicality in mathematical calculations.

**Highlights:** Graphical RPN calculator, Equation plotting, Undo functionality, Simple interface, Practical calculations

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

**In-app purchases:** none


### Elements of Matter

[App page](https://appshunter.io/ios/app/elements-of-matter/id981951888)

Access comprehensive data for every element on the periodic table. Explore detailed properties like atomic weight, melting point, and electron configuration with simple navigation.

**Highlights:** Detailed element information, Periodic table navigation, Atomic properties, Physical and chemical data, Discovery details

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SigiCalc free?

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

### Is Elements of Matter free?

Elements of Matter costs $0.99, with no in-app purchases.

### Which has better reviews, SigiCalc or Elements of Matter?

SigiCalc is rated higher. SigiCalc averages 5.0 out of 5 from 1 ratings, while Elements of Matter averages 1.0 from 1 ratings.

### Do SigiCalc or Elements of Matter have ads?

Neither SigiCalc nor Elements of Matter shows ads.

### Which is updated more often, SigiCalc or Elements of Matter?

SigiCalc ships an update every 48 months, and Elements of Matter every 9 months. Most recently, SigiCalc was updated on November 1, 2026 and Elements of Matter on November 1, 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.*