# Multinomial vs StemFox Scientific Calculator

The clearest difference is in-app purchases: Multinomial at none against StemFox Scientific Calculator's 6. StemFox Scientific Calculator's advantage is update cadence (every 3 months vs every 47 months) and iOS requirement (15 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. StemFox Scientific Calculator sells 6 in-app purchases, starting at $2.99 per month. Multinomial asks for nothing beyond the download.

Multinomial ships an update every 47 months, StemFox Scientific Calculator every 3 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Multinomial | StemFox Scientific Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (11 ratings)](https://appshunter.io/ios/app/stemfox-scientific-calculator/id1411592118/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 90.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 3 months** |
| Monetization | — | Freemium |
| Size | 1 MB | 24 MB |
| Requires iOS | 18.6 | **15** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Reinhard MAENNER](https://appshunter.io/developer/578568275) | [Joshua Bryson](https://appshunter.io/developer/1367675392) |

## What reviewers say

### Multinomial

[App page](https://appshunter.io/ios/app/multinomial/id578568272)

**Features:** macOS Compatibility

**In-app purchases:** none


### StemFox Scientific Calculator

[App page](https://appshunter.io/ios/app/stemfox-scientific-calculator/id1411592118)

Streamline complex STEM calculations with a powerful calculator, textbook equation solver, and comprehensive unit converter. Designed for engineers, it reduces busywork and improves accuracy for homework and technical tasks.

**Highlights:** Advanced scientific calculator with 80+ functions, Textbook equation solver for any variable, Searchable equation database by chapter, Fast table lookup with linear interpolation, Comprehensive unit converter with 300+ conversions, Copy and paste functionality for values and equations

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly - Unlimited | $2.99 | per month |
| Yearly - Unlimited | $9.99 | per year |
| Donut | $0.99 | one-time |
| Drink | $2.99 | one-time |
| Taco | $4.99 | one-time |
| Pizza | $9.99 | one-time |


## Frequently asked questions

### Is Multinomial free?

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

### Is StemFox Scientific Calculator free?

StemFox Scientific Calculator is free to download, with in-app purchases available.

### Do Multinomial or StemFox Scientific Calculator have ads?

Neither Multinomial nor StemFox Scientific Calculator shows ads.

### Which is updated more often, Multinomial or StemFox Scientific Calculator?

Multinomial ships an update every 47 months, and StemFox Scientific Calculator every 3 months. Most recently, Multinomial was updated on November 6, 2026 and StemFox Scientific Calculator on November 2, 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.*