# Good Grapher - scientific graphing calculator — user reviews > 126 indexed App Store user reviews of Good Grapher by Iurii Mozharovskyi, rated 4.60/5 from 122 ratings. - Source: https://appshunter.io/ios/app/good-grapher-scientific-graphing-calculator/id416996329/reviews - App overview in markdown: https://appshunter.io/ios/app/good-grapher-scientific-graphing-calculator/id416996329.md - Rating breakdown: 5★ 99 · 4★ 12 · 3★ 1 · 2★ 3 · 1★ 7 ## What do users think of Good Grapher? Overall sentiment: positive **Pros** - 👍 Excellent user interface and intuitive design - 📊 Powerful 2D and 3D graphing capabilities - 🚀 Fast performance and quick load times - 💰 Free app with premium features - 🔄 Easy equation history and recall functionality - 📱 Lightweight and doesn't require much storage - 🧮 Comprehensive scientific calculator functions - 🎓 TI-84/TI-89 equivalent replacement for students - ✨ No ads in free version (or minimal ads) - 🔍 Easy zoom and graph scaling features - 📈 Shows equation as you type - 🎯 Displays points of intersection on graphs **Cons** - ⚠️ Occasional calculation errors - 🐛 App crashes and stability issues - 📱 Not optimized for newer iPhone models - 🔐 Unnecessary location services permission request - ❌ Limited variable support (x variable issues) - ⚙️ Some buttons not intuitive - 🔧 Inconsistent handling of negative numbers - 📊 Graph deletion sometimes fails - 🎨 Display resolution outdated (iPhone 5 era) - ⏱️ Slow startup time in some cases - 🚫 Cannot be used during exams **Commonly reported bugs** - App crashes when deleting graphs - Incorrect cosine calculations - Unclosed parentheses handling issues - Negative number input not working in certain positions - Graph union display limited to 2 unions - Location services popup appears repeatedly - Music cuts out when app opens - Popup interruptions during entry in free version **Most requested features** - System of equations solver - Variable support (especially x variable) - Domain and points of discontinuity features - Spreadsheet-like table graphing capability - iPad optimization and compatibility - Improved negative number handling (e.g., 1*-1) - Number formatting with commas (1,000 instead of 1000) - Union display for multiple graph functions - Paid premium version option - More function options and advanced features ## Newest reviews (15 of 126) ### 4/5 — 좋은 ‘아플’ *2020-07-04* 정말 좋은 ‘어플’로 초기부터 사용했고, 많은 도움도 받았고, 유용하게 잘 써왔읍다. 고마워요...... ### 5/5 — Never use my TI84 anymore *2018-09-19* I’ve used the App Store since it first came out and this is the only app I’ve ever written a review for—it recognizes when “e” is euler’s number and when it’s a symbol for scientific notation, knows when “-“ means negative and when it denotes subtraction, the graphing is easy to use— all its features are brilliant, and before this, I had never found an app that can totally replace my TI-84. Cheers to the developer! ### 5/5 — Good *2018-09-11* This seems to be the only non-paid calculator on the app store with memory, individual deletion, and easy copying. Even if it couldn’t graph, it would still be by far the best calculator I’ve seen so far. ### 5/5 — ㅇㅇ *2017-09-26* 다른것보다 나아요 진짜 ### 5/5 — Step aside, TI! *2017-09-14* This app is the best! Points along the graph are easily identified, and derivatives are given, just touch and go. Graph scale can be zoomed in or out, no complicated string of keystrokes involved. The only reason I'm keeping my graphing calculator is because I can't use this app for a test. If you are a math student, Good Grapher is what you need! ### 5/5 — Literally GOODGRAPHER *2017-08-12* By using this application, you can draw beautiful graph, which you can't draw by yourself. ### 5/5 — Well done! *2017-07-15* My go to app for calculations ### 5/5 — Perfect TI-84 and more *2017-06-29* I was looking for a calculator app like the TI-84, this is the best I have found by far! I've seen zero ads, love it ### 5/5 — Very good *2017-06-08* This is an extremely versatile app that completely replaces or exceeds most graphing calculators. ### 5/5 — Muito fácil de usar *2017-03-30* Além de ter as funções calculadora científica e de fazer gráficos em 2D e 3D, ainda resolve equações polinomiais de até 4º grau e sistemas lineares de 2 ou 3 variáveis. Ajuda demais. ### 4/5 — Works Perfectly *2017-03-28* Gets the job done! I recommend it to students daily. ### 5/5 — Works awesome *2017-03-13* The app works perfect as a calculator app ### 5/5 — Good *2017-02-23* Works perfect without paying dime ### 5/5 — Great Calculator *2017-02-16* I have been using it for two weeks now and absolutely love it. ### 5/5 — Very Good *2017-02-03* This is my first review of any app. Excellent app. ## Most critical reviews (10 lowest-rated) ### 1/5 — doesn't give the right answers *2017-08-02, version 3.3.3* i was working on a problem that required me to give the cosine of an angle, and it gave the wrong decimal. it frustrated me for a long time and i don't think it is worth buying. ### 1/5 — Useless for me *2017-06-23, version 3.3.3* There's no x. I wanted (100-x) but there's no way to enter an x ### 1/5 — Not what it says it is *2017-02-10, version 3.3.3* It doesn't graph ### 1/5 — Big add in your solutions. *2015-12-03, version 3.3.2* Poor update ### 1/5 — Variables??? *2014-10-10, version 3.2.5* How is it a graphing calculator if I can't even use variables?? I need my Xs please. Even the sucky graphing apps allow me to enter variables. ### 1/5 — Horrible *2013-04-08* No graphing ### 2/5 — Good but doesn't show unions *2017-09-18, version 3.3.3* This app is great for everything but showing more than 2 unions on a graph ### 2/5 — Okay but there's no x input..? *2017-08-08, version 3.3.3* Needed to input an x variable but there was no leg for x ### 3/5 — good *2015-09-28, version 3.3.0* good woo yeah let's go ### 3/5 — Promising, but not ready for prime time. *2012-11-21, version 2.0.1* This graphing calculator has many strengths, including its nice interface and it's beautiful grapher. However, it is buggy and crashes too frequently for me to recommend it currently. For example, deleting graphs sometimes fails to remove them from the grapher and then crashes the application to the home screen. Also, this calculator does not handle unclosed parentheses gracefully. I hope the developers continue to improve this promising application. ## Most praised reviews (10 highest-rated) ### 5/5 — Excellent Calculator *2023-08-26, version 3.3.3* Great for single calculations and “chain” calculations. ### 5/5 — This is the best free graphing calculator in the app store *2020-10-29, version 3.3.3* Im surprised theres only a few people using this!! It literally has a 3d grapher and theres so many other features that makes this app extra helpful for a calculator! ### 5/5 — Good little pocket calculator *2020-10-05* As an engineering student this app always comes in handy whenever I don’t have my trusty Ti-84 on me, and it’s the closest equivalent I have found on the App Store so far. Once you get used to the layout it is a powerful app and I’m glad I have it. ### 5/5 — Perfect Calculator *2020-05-30* This is exactly the perfect calculator for iPhone. In terms of the calculator, it actually shows your the equation as you type it, shows your old equations, and you can pull down equations or values into your current equation. If you’re a mathematician or an engineer and need a real calculator, this is about as good as it gets. 2 wishes: - an option to solve system of equations (complex, but that’s still why I reach for my TI-nSpire CAS usually, before this) - optimize for iPhone X ... this app is still running at the iPhone 5 resolution... it’s worrying me that this app is dying off, and all we need is Apple to do what it does best and cut support for some sort of API that this thing uses or something like that. ### 5/5 — 손안의 공학계산기 *2020-05-27* 언제부턴가 계산기를 별도로 찾은 기억이 없다! 아주 편리하게 사용하고 있어요. ### 5/5 — It is pretty good. *2020-05-17* Very easy to use ### 5/5 — The best calculator for me *2019-07-13* This app is so useful, lightweight and simple to use! ### 5/5 — BEST COMPANION *2019-01-24, version 3.3.3* Can’t ask for more. It’s the best Math practice companion! ### 5/5 — 잘 사용하고 았습니다 *2018-11-19* 모바일 주계산기로 사용중입니다. ### 5/5 — 感動 *2018-11-12* 無料です。 なのに、グラフかけて、基本の方程式計算できて、出力もできる。 目的無しに触っていても楽しい神アプリ。 --- *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 2026-08-15.*