# Parametric Factorization — user reviews

> 5 indexed App Store user reviews of Parametric Factorization by Glindemann, Sennoun, Langer GbR, rated 2.90/5 from 8 ratings.

- Source: https://appshunter.io/ios/app/parametric-factorization/id1493935902/reviews
- App overview in markdown: https://appshunter.io/ios/app/parametric-factorization/id1493935902.md
- Rating breakdown: 5★ 3 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 4

## Most critical reviews (5 lowest-rated)

### 1/5 — Bad

*2021-01-06*

✌🏽

**Developer response:** This app only provides results when there is a real solution. No "real" solution means that the result would be a complex number. Complex numbers are not supported because there would be an infinite amount of results. Another limitation is that the result for "B" and "D" are calculated as integers. Otherwise there would be an infinite amount of incomprehensible results. For a better understanding how the app works try the predefined input example from the history function. To show that the predefined input example is not a hacky fake, here are some more possible inputs that lead to a result: a = 8; b = 2; c = -3 a = 1; b = 2; c = 1 a = 1; b = -3; c = -10 But Factoring Quadratic Trinomials follows a self-invented algorithm that usually is not part of common school lectures. Maybe factoring by AC method might be more useful to you: https://apps.apple.com/us/app/id1500086077 Good luck!

### 1/5 — ちょっと使えない

*2020-05-18*

式がaxとかで制限されてるからaxyの場合の式とかが使えないから入れた意味がなかった

説明下手ですみません

**Developer response:** メッセージありがとうございます。 一部の変数を整数に制限することにしました。 この理由は、多くの方程式には無限に多くの解があるためです。 宜しくお願いします

### 1/5 — Rating app

*2020-05-01*

It doesnt give you answers nor does it help you understand.

**Developer response:** I am sorry that the usage is not clear enough. This app only provides results when there is a real solution. No "real" solution means that the result would be a complex number. Complex numbers are not supported because there would be an infinite amount of results.

Another limitation is that the result for "B" and "D" are calculated as integers. Otherwise there would be an infinite amount of incomprehensible results.

For a better understanding how the app works try the predefined input example from the history function.

To show that the predefined input example is not a hacky fake, here are some more possible inputs that lead to a result:
a = 8; b = 2; c = -3
a = 1; b = 2; c = 1
a = 1; b = -3; c = -10

But Factoring Quadratic Trinomials follows a self-invented algorithm that usually is not part of common school lectures. Maybe factoring by AC method might be more useful to you:
https://apps.apple.com/us/app/id1500086077

Good luck!

### 4/5 — It works well

*2021-04-20*

It works well but for certain problems it says no solution when you can still factor it

**Developer response:** Thank you very much for your feedback! Yeah, there were some problems with the algorithm we had to fix. Next week we will release an update with some good changes. Decimals will be supported too. Kind regards

### 5/5 — Great app!!

*2022-02-02*

Absolutely amazing one of the best apps for factoring

**Developer response:** Thank you very much for your feedback! With the upcoming update the app will be much better!

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*