# Quadratic Formula Calculator vs RS VooM

The clearest difference is in-app purchases: RS VooM at none against Quadratic Formula Calculator's 1. RS VooM also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Quadratic Formula Calculator sells 1 one-off in-app purchase. RS VooM asks for nothing beyond the download.

## The numbers

| Metric | Quadratic Formula Calculator | RS VooM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (71 ratings)](https://appshunter.io/ios/app/quadratic-formula-calculator/id1425311468/reviews)** | — |
| Number of ratings | **71** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 61 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Edward Prokopik](https://appshunter.io/developer/1077587110) | [Real See International US Intelligent Technology Company Limited](https://appshunter.io/developer/1819406836) |

## What reviewers say

### Quadratic Formula Calculator

[App page](https://appshunter.io/ios/app/quadratic-formula-calculator/id1425311468)

This app simplifies solving quadratic equations by allowing users to input coefficients a, b, and c. It quickly displays the solutions for x, including support for imaginary numbers. Users can also switch between light and dark themes for a personalized experience.

**Highlights:** Input coefficients a, b, and c, Displays solutions for x, Supports imaginary number solutions, Light and Dark modes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $1.99 | one-time |


### RS VooM

[App page](https://appshunter.io/ios/app/rs-voom/id6758929640)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quadratic Formula Calculator free?

Quadratic Formula Calculator is free to download, with in-app purchases available.

### Is RS VooM free?

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

### Do Quadratic Formula Calculator or RS VooM have ads?

Quadratic Formula Calculator shows ads; RS VooM does not.

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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.*