# Trigonometric Identities Tutor > Educational app for memorizing trigonometric identities and related math concepts. (iPhone/iPad app by Joseph Kodet.) - Source: https://appshunter.io/ios/app/trigonometric-identities-tutor/id1452019703 (this page in markdown: same URL + `.md`) - Developer: [Joseph Kodet](https://appshunter.io/developer/1185360976) - Category: Education, Reference - Price: $2.99 - Rating: 3.00/5 from 1 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 59 MB - Languages: American English - Released: 2019-02-09 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/trigonometric-identities-tutor/id1452019703/reviews.md ## What is Trigonometric Identities Tutor? Trigonometric Identities Tutor is an app available for the apple iOS app store that will help you memorize the trigonometric identities most commonly used for High School, Community College, and University mathematics classes such as precalculus and calculus courses. The app will teach you the most common Trigonometric Identities as well as those for the hyperbolic functions, inverse functions and the most common derivatives and integral values for trigonometric identities. It will help you to memorize the values of the Unit Circle for the cosine and sine functions in terms of degrees and radians. Also, it will help you to memorize and recognize the most common graphical functions for trigonometric functions, logarithms and the most common functions taught in these introductory courses. An excellent study aid for these math courses. ## Key features - Memorize common trigonometric identities - Learn hyperbolic and inverse function identities - Study derivatives and integrals of trig functions - Practice unit circle values (degrees and radians) - Recognize trigonometric and logarithmic graphs - Aid for precalculus and calculus courses ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/trigonometric-identities-tutor/id1452019703/reviews.md ### 3/5 — it’s ok *2024-09-06* the app is okay. i am able to learn decently. i wish there was a practice mode, as i dont know a lot of these yet. when I guess on one that i dont know, it will highlight the answer for one second, and then quickly move on. there isn’t any time for me to learn it. maybe a “next” button would solve this problem, or a flashcards feature instead of only a quiz mode. the pictures are weird at times & hard to read. they seemed to be stretched to fit the button size, which warps some of the shapes. overall it’s an alright app, but definitely can stand some improvements. i do appreciate the creator though, as having a trig learning app is rare right now! ### 1/5 — It doesn’t open when i click on it *2020-03-27, version 1.0.1* Only see the loading page and then it jumps back to home. you seriously are charging money for this? If you’re not going to fix it and just scam people then keep all your other apps and delete this one. I have an iPhone 7, if it is not suitable for this iphone chances are it is not suitable for other devices. **Developer response:** The description states clearly which iPhone, iPod, and iPad devices that this app is suitable for. Per the user's complaint about the iPhone 7, I retested this app in the Xcode Simulator for both iPhone 7 & iPhone 7 plus. For both cases it opens & operates normally. Further, I tested this physically against an iPod touch 7th generation with similar processor specifications and it works fine ## Frequently asked questions about Trigonometric Identities Tutor ### What trigonometric identities does Trigonometric Identities Tutor cover? Trigonometric Identities Tutor covers common identities used in high school and university math, including those for hyperbolic functions, inverse functions, and common derivatives and integrals of trigonometric functions. ### Can Trigonometric Identities Tutor help with unit circle memorization? Yes, Trigonometric Identities Tutor helps users memorize the values of the Unit Circle for cosine and sine functions in both degrees and radians. ### What is the price of Trigonometric Identities Tutor? Trigonometric Identities Tutor is a paid app priced at $2.99. ### What devices is Trigonometric Identities Tutor available on? Trigonometric Identities Tutor is available for iPhone, iPad, and iPod devices. ### How often is Trigonometric Identities Tutor updated? The latest version, 1.0.8, was released on September 1, 2023. The app was originally released on February 9, 2019. ### What is the age rating for Trigonometric Identities Tutor? Trigonometric Identities Tutor has an age rating of 4+. ### Does Trigonometric Identities Tutor have ads? No, Trigonometric Identities Tutor does not contain advertisements. ### What is the user rating for Trigonometric Identities Tutor? Trigonometric Identities Tutor has a rating of 3.0 stars from 1 rating. ## Version history (last 5 releases) ### 1.0.8 — 2023-09-01 update for latest versions of iOS ### 1.0.7 — 2020-07-02 fixes for Trig Functions Graphs Quiz ### 1.0.6 — 2020-06-25 improved handling of answers and transitions to new questions for quizzes ### 1.0.4 — 2020-06-24 update to Swift 5, addition of a few more identities to common trigonometric identities quiz ### 1.0.3 — 2020-04-13 improved resolutions for images, minor aesthetic improvements, internal fixes & code rewrites ## Apps similar to Trigonometric Identities Tutor | App | Rating | Price | Category | | --- | --- | --- | --- | | [Vector Gem](https://appshunter.io/ios/app/vector-gem/id1537188969) | — | Free | Education | | [Geometry-Solver](https://appshunter.io/ios/app/geometry-solver/id1618839152) | — | Free | Education | | [Vectors and Planes](https://appshunter.io/ios/app/vectors-and-planes/id1605294727) | 4.5 (4) | Free | Education | | [Greek Mythology Pro](https://appshunter.io/ios/app/greek-mythology-pro/id1158877253) | 3.7 (3) | $4.99 | Education | | [Polyatomic Ion Flash Cards](https://appshunter.io/ios/app/polyatomic-ion-flash-cards/id582431809) | 3.8 (4) | $2.99 | Education | | [Implicit Differentiation Cal](https://appshunter.io/ios/app/implicit-differentiation-cal/id1607963477) | — | Free | Education | ## More apps by Joseph Kodet - [Citric Acid Cycle Tutor](https://appshunter.io/ios/app/citric-acid-cycle-tutor/id1185360977) - [Glycolysis Glucogenesis Tutor](https://appshunter.io/ios/app/glycolysis-glucogenesis-tutor/id1190613837) - [Pentose Phosphate Paths Tutor](https://appshunter.io/ios/app/pentose-phosphate-paths-tutor/id1196449524) - [Amino Acid Codons Tutor](https://appshunter.io/ios/app/amino-acid-codons-tutor/id1198324981) - [Electron Transport Chain Tutor](https://appshunter.io/ios/app/electron-transport-chain-tutor/id1207414830) - [Photosystems Tutor](https://appshunter.io/ios/app/photosystems-tutor/id1210779550) All apps by Joseph Kodet: https://appshunter.io/developer/1185360976 --- *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 2026-06-10.*