# Parametric Factorization vs ST STEPHEN HS

The clearest difference is in-app purchases: ST STEPHEN HS at none against Parametric Factorization's 8. ST STEPHEN HS also leads on iOS requirement (12.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Parametric Factorization sells 8 one-off in-app purchases. ST STEPHEN HS asks for nothing beyond the download.

## The numbers

| Metric | Parametric Factorization | ST STEPHEN HS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (8 ratings)](https://appshunter.io/ios/app/parametric-factorization/id1493935902/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 179 MB | 24 MB |
| Requires iOS | 15.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Surajit Nath](https://appshunter.io/developer/1248809417) |

## What reviewers say

### Parametric Factorization

[App page](https://appshunter.io/ios/app/parametric-factorization/id1493935902)

This application helps users factor quadratic trinomials by entering three variables. It provides detailed solution steps and stores all calculations in a history for easy access and sharing. Supports positive and negative numbers, as well as decimals.

**Highlights:** Factors quadratic trinomials, Detailed solution steps, Input history, Supports decimals and negative numbers, Shareable solutions, Ad removal option

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


### ST STEPHEN HS

[App page](https://appshunter.io/ios/app/st-stephen-hs/id6466209482)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Parametric Factorization free?

Parametric Factorization is free to download, with in-app purchases available.

### Is ST STEPHEN HS free?

ST STEPHEN HS is free to download, with no in-app purchases.

### Do Parametric Factorization or ST STEPHEN HS have ads?

Neither Parametric Factorization nor ST STEPHEN HS shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*