# Parametric Factorization — Complete solution, all steps > Factors quadratic trinomials with step-by-step solutions and history. (iPhone/iPad app by Glindemann, Sennoun, Langer GbR.) - Source: https://appshunter.io/ios/app/parametric-factorization/id1493935902 (this page in markdown: same URL + `.md`) - Developer: [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) - Category: Education, Utilities - Price: Free with in-app purchases - Rating: 2.90/5 from 8 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 179 MB - Languages: American English, French (France), German (Germany), Hindi, Indonesian, Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China) and 1 more - Released: 2020-01-07 - Data updated: 2026-08-26 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/parametric-factorization/id1493935902/reviews.md ## What is Parametric Factorization? No tricks, no guessing. Factor quadratic equations using a parametric method – fully and clearly understandable. HOW IT WORKS Enter the coefficients a, b and c of the equation ax² + bx + c. The factorization is derived step by step in a systematic way. You can share results at any time. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything can be used for free. 24/7 access to your solutions. All solution steps are always shown completely. If you use the app more intensively, various purchase options are available. EXTRAS - Feedback for incorrect inputs - Manage your own solutions - Introduction to the app CONTACT Questions and feedback via Discord or directly in the app review. ## Key features - Factors quadratic trinomials - Detailed solution steps - Input history - Supports decimals and negative numbers - Shareable solutions - Ad removal option ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $1.99 | one-time | | +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time | | +1 Convenience Token / 6h, max. +2 | $0.59 | one-time | | +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time | | +150 User Tokens | $0.99 | one-time | | Lifetime Access | $1.99 | one-time | | +30 User Tokens | $0.29 | one-time | | +300 User Tokens | $1.49 | one-time | ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/parametric-factorization/id1493935902/reviews.md ### 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! ### 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 ### 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! ## Frequently asked questions about Parametric Factorization ### How does Factoring Quadratic Trinomials work? Factoring Quadratic Trinomials requires you to enter the values for a, b, and c of the quadratic trinomial. The app then uses its algorithm to transform it into a product of two binomials, showing detailed solution steps. ### What kind of numbers does Factoring Quadratic Trinomials support? The app supports positive and negative numbers, as well as decimals for the variables a, b, and c. This allows for a wide range of quadratic trinomials to be factored. ### Can I save my calculations with Factoring Quadratic Trinomials? Yes, all calculations are stored in a history function. You can easily access, delete, or sort entries in the history, and select past entries to load them automatically for recalculation. ### Is Factoring Quadratic Trinomials free to use? Factoring Quadratic Trinomials is free to download and use. There is an option to remove ads through an in-app purchase. ### What devices is Factoring Quadratic Trinomials available on? Factoring Quadratic Trinomials is available for iPhone, iPad, and iPod. It is designed for iOS devices. ### How often is Factoring Quadratic Trinomials updated? The latest version of Factoring Quadratic Trinomials is 3.0.0, last updated on February 18, 2026. While the last update date seems to be in the future, indicating potential for future updates, the app was initially released on January 7, 2020. ### What is the age rating for Factoring Quadratic Trinomials? Factoring Quadratic Trinomials has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger learners. ### How can I share my factored trinomials from the app? Once the app provides the final solution for factoring a quadratic trinomial, there is an option to share the result. This allows you to easily send your work to others. ## Version history (last 5 releases) ### 3.2.3 — 2026-08-14 The latest release 'Least common multiple' is linked in the menu section now. Minor performance and UI fixes. ### 3.2.2 — 2026-08-04 - the status bar on top is integrated into the current app design - the app flow was improved (pop-up information was balanced) ### 3.2.1 — 2026-07-16 Maintenance update. Improving performance. ### 3.2.0 — 2026-06-19 Bringing all apps to the same security standard. Critical storage behaviour for solutions has been fixed. By the way - I run many apps with different math topics. If you like this one: Check them out as well! I always do my best to keep a high standard on my apps. If something does not meet the expectations, do not hesitate to contact me. ### 3.1.6 — 2026-06-06 There were some major fixes and adjustments for a more stable behaviour of the solution storage and loading. Therefore some database changes were made in the background. There are no performance losses and the functionality does not change. The background tasks are only done once within milliseconds. Following behaviour may occur (only temporary): - stored calculations have to be tapped twice to load fully - the order of the stored solutions may change If there are some losses of solutions do not hesitate to contact me and tell me the number of lost solutions + affected app. I will find a solution for this. Kind regards, Alex (the Dev) ## Apps similar to Parametric Factorization | App | Rating | Price | Category | | --- | --- | --- | --- | | [GCD and GCF Simple Calculator](https://appshunter.io/ios/app/gcd-and-gcf-simple-calculator/id1492483841) | 4.5 (2) | Free | Education | | [Equation & System Solver](https://appshunter.io/ios/app/equation-and-system-solver/id1502274328) | 4.9 (11) | Free | Education | | [Simplify Fractions - Simple](https://appshunter.io/ios/app/simplify-fractions-simple/id6449391611) | — | Free | Education | | [Triangle Solver](https://appshunter.io/ios/app/triangle-solver/id1508047860) | 5.0 (2) | Free | Education | | [Simple square root calculator](https://appshunter.io/ios/app/simple-square-root-calculator/id6449826901) | 4.8 (15) | Free | Education | | [SymCalc - Symbolic Calculator](https://appshunter.io/ios/app/symcalc-symbolic-calculator/id1263938541) | 4.5 (168) | Free | Education | ## More apps by Glindemann, Sennoun, Langer GbR - [Pintrs EIGHT](https://appshunter.io/ios/app/pintrs-eight/id1043738177) - [Pintrs](https://appshunter.io/ios/app/pintrs/id1076171058) - [2048 Charming Easy](https://appshunter.io/ios/app/2048-charming-easy/id1154480597) - [Touch shapes in order](https://appshunter.io/ios/app/touch-shapes-in-order/id1185530946) - [Linear Equations Calculator](https://appshunter.io/ios/app/linear-equations-calculator/id1246761828) - [Chubby Mojis Animated Sticker](https://appshunter.io/ios/app/chubby-mojis-animated-sticker/id1258233753) All apps by Glindemann, Sennoun, Langer GbR: https://appshunter.io/developer/1024972809 --- *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.*