**Category:**Education**Release Date:**2013-06-18**Current Version:**3.3.0**Adult Rating:**4+**Developer:**Desmos**Compatibility:**Android

Explore math with Desmos! Plot functions, create tables, add sliders, animate your graphs, and more -- all for free. At Desmos, we imagine a world of universal math literacy and envision a world where math is accessible and enjoyable for all students. We believe the key is learning by doing. To achieve this vision, we’ve started by building the next generation of the graphing calculator. Using our powerful and blazingly-fast math engine, the calculator can instantly plot any equation, from lines and parabolas up through derivatives and Fourier series. Sliders make it a breeze to demonstrate function transformations. It's intuitive, beautiful math. And best of all: it's completely free. Features: Graphing: Plot polar, cartesian, or parametric graphs. There’s no limit to how many expressions you can graph at one time - and you don’t even need to enter expressions in y= form! Sliders: Adjust values interactively to build intuition, or animate any parameter to visualize its effect on the graph. Try typing y=mx+b and adding sliders to get started. Tables: Input and plot data, or create an input-output table for any function. Statistics: Find best-fit lines, parabolas, and more. Calculus: Graph derivatives (d/dx) and explore key concepts by building secant and tangent line sliders. Graph Maclaurin Series (okay, all kinds of Taylor Series, but that guy gets no love...) Evaluate a definite integral (int) in an instant, or plot an integral with varying bounds. Zooming: Scale the axes independently or at the same time with the pinch of two fingers, or edit the window size manually to get the perfect window. Points of Interest: Touch a curve to show maximums, minimums, and points of intersection. Tap the gray points of interest to see their coordinates. Hold and drag along a curve to see the coordinates change under your finger. Scientific Calculator: Just type in any equation you want to solve and Desmos will show you the answer. It can handle square roots, logs, absolute value, and more. Inequalities: Plot cartesian and polar inequalities. Offline: No internet access required. Visit www.desmos.com to learn more and to see the free online version of our calculator.

#### Play all day 5/5

By hungry_hippos1My friend jace and I play all the time#### Absolutely Phenominal 5/5

By BossToxicNinja324This app has saved my grades hundreds of times over the past few years.#### It could be nearly perfect by adding a camera 4/5

By IndianMathGuyWe all know typing big problems takes forever and if the app creators can add a camera to scan the problem it would save sooooo much time. Other than that the app is amazing. It automatically changes from degrees to radians which is always appreciated.#### Amazingly practical 4/5

By nathansveeDisclaimer: not an expert. Using a graphical calculator first time in my life. For all I care, I carry functionality with me in the same device I use to browse the web, text, call and communicate with others. As far as I can tell the functionality is super intuitive and seems to be working along with my exercises in the college level book I am reading. Terrific tool indeed!#### Great app 5/5

By NovaStorm93It is leagues beyond traditional calculators in schools, TI-73, TI-84, TI-83 are all nothing compared to this FREE phone app. It can make and hold simple variables, graph almost anything, and has easy to understand messages to show errors. It is the only calculator I trust to make and manage phone calls.#### Awesome but needs additional features 5/5

By MutterbafoonnnThis is the best graphing app on the store however updates containing new features are scarce. I think support for more greek letters as variables would be great, as well as an option to whether, for example, π or e are treated as constants or variables. The Lambert W Function would be awesome (F⁻¹(xe^x)) and also the Riemann Zeta Function (convergence of sum of 1/n^x from n=0 to infinity). The ability to put minuses and plusses in subscript. The addition of the gamma constant ~0.577 and the omega constant which is the principle solution to 1 = xe^x.#### Please add fractions 4/5

By VEA_5!This app is very helpful but it would be more if y’all could put fractions to be used#### Garbage 1/5

By FatherdewittI found this and felt relieved that I could find the answers to difficult graph questions but all this did was waste my time and give me nothing. It couldn’t even jot down points and the equations I wanted solve weren’t solved. Don’t download.#### Amazing. 5/5

By Nai AlcenoThis is an excellent app. Help you all the time and you can see the points in the graphic, really helps when you are looking how many zeros there are in the equations.#### The best. One small suggestion/request! 5/5

By NW420Everyone I know I’m the math department uses Desmos. It’s incredibly user friendly and versatile😀 I was stoked to download it on the iPad. One small request- please put in a theta key (for polar equations)!#### Life 5/5

By WHY ?!?!?!Best app to have on your starting Sophomore honors math throughout college.#### Besides the lack of 3d and an ugly icon 5/5

By dextmlthis is a fantastic math app, it replaces my calculator as well#### Great app!!! 5/5

By LukePoppyOMG it is the best graphing app!!!#### Where’s the yellow? 2/5

By lindsay6789I tried to make a rainbow graph but there was no yellow and therefore I couldn’t. The best solution is a color wheel selection tool so graphs can be whatever color people want them to be. I gave this 2 stars though because the domain tool is nice.#### Great but could use one extra feature 4/5

By A disgruntled PAP Bio studentI’ve frequently used this app all through high school and college, and found it pretty useful save for one relatively minor flaw. When using it on an iPad Pro, I’d rather be able to use a Smart Keyboard than the in-app keyboard to type stuff in, especially since I don’t have to switch modes somehow to type letters instead of numbers. Hopefully a later version can account for this.#### Cool 4/5

By Z NyaninjaThis app is helpful and amazing. I just think we should be able to draw lines or connect points with a line. That would be the best. That’s all.#### Glitching recently 2/5

By GAM1NG MAST3RWhenever I use this app, go to another without closing this one, then come back to this one, the app is almost guaranteed to freeze. Then, when I close and reopen the app, any functions that I have graphed are gone. I'm only giving this two stars because this wasn't a problem until recently.#### Perfection 5/5

By Universe DragonThe desktop site was INSANELY useful in my calculus course, and now it’s an app. AMAZING. Definitely recommend for upper-level math classes.#### It’s a calculator. 5/5

By aidan1321It’s just a calculator#### Amazing 5/5

By 6373826I always used to use the website to help with graphs, and the app promises all of the features of the website and works beautifully!!#### So fun and easy 5/5

By isaiah potterI’m in algebra in the 8th grade and I have found that app helpful and easy- GREAT APP#### Perfect 5/5

By strqqExactly what I needed.#### Horrible 5/5

By HdthcdyiThis is probably the worst thing I have ever used on the App Store#### Spectacular 5/5

By SnaavyThis app is fantastic and does everything I wanted it to. Thank you for the simple graphing calculator!#### Love it, but I have suggestions 5/5

By ChrisModeThe app is great, it’s user friendly, simple, and functional, but there some things that could be added to make it even better Phi: could you add the number ϕ for the golden ratio so you don’t have to put g=(1+√5)÷2in order to get it Could you add the ± and ≈ symbols for more “ambiguous” functions Could you add Boolean function symbols like ¬(not), &(and), ∨(or), and ⊻(xor)#### Amazing Where Mathematical Innovation can Reach 5/5

By reybakoWhat an amazing App! I started playing with it during my summer vacation to first do a regression analysis of a country's electricity load (demand) curve. Once I got the best fit, I used Desmos to find the area (energy) under the curve for different hours during the day (peak, shoulder and valley). Amazing how easy and fun it was to do it. Watch the YouTube tutorials; you will be shocked. Great App. Keep up the good work and thanks for such a powerful tool. I tried many other Apps. This is the best I found.#### Great 5/5

By azzziiiiiThis app is super awesome I highly recommend it#### Great graphing calculator 5/5

By AlexC042101Great graphing calculator I use it everyday.#### Good, but 5/5

By Recon798The app is great, and I would highly recommend it. That being said, it would be great to have an option to change the keyboard size. Right now it is almost unusable small.#### Don't waste you time look somewhere else 1/5

By Frequent traveler2012Tried my best, as worthless as worthless could be#### Poosaucy 5/5

By mathacademystarTrash#### Logs me out every time I close the app 4/5

By ＪＡＣＯＢＩＳＬＩＦＥSigned in with Google in the app, but after closing the app, the app will forget who I am. I have long account log in credibility, so please don't do this to me!#### Desmos is my life 5/5

By sk8723I need say no more#### Best Graphing Calculator 5/5

By bobpawTI 🤮 Desmos 😍#### Wonderful for school and understanding how formulas work 5/5

By MGA studentThis app is wonderful and a large part of why I don’t hate math and now actually understand what I’m doing. I can check my answers agents the original problem to check my solution and through messing around changing signs in an equation I am been able to visualize equations that would otherwise be as number soup to me. I can’t wait for possible future updates it would be useful to be able to have an option to see the center points of conic figures as well as the foci. This is a great app and well made and I hope to see future improvements such as this.#### Yeah sure 5/5

By Master of the TRUTHThis app works pretty great considering my middle school math teacher told me to get it. I only know how to do a couple of things tho, since I’m only in algebra 1 advanced, so idk if some higher level things work or not.#### Flawless 5/5

By icemycoffeeThis application works so flawlessly, I cannot wait to see what is next!#### Fantastic! 5/5

By EngineeringUndergradThis app is great! What can’t it do?! Why buy an expensive graphing calculator when you can download this app? The interface is more like what you see in class or your text book, and you don’t have to learn TI coding for it to do what you want. I have used it quite a bit for college algebra, trigonometry, precalculus, and calculus. I tutor math and it really helps visualize some of the function manipulations. It is a very powerful tool and a fantastic teaching aid. In lecture, my professors have asked to borrow my iPad so they can project the Desmos app’s graph for the whole class to see. The pinch and zoom feature is really nice and so are the sliders for variables. I do my homework using Notability and can copy and paste (or screenshot and paste) the graph right into my homework assignments. I also just discovered the derivative function. This might be wishful thinking, but it would be nice if there was an iPad/stylus interface where you could sketch a graph into Desmos and maybe have its derivative/integral shown. Overall the app is fantastic, I highly recommend it to any/all students taking math. It has taken my understanding of certain math concepts to a whole new level!#### ???? 2/5

By giordanromeythe latest update says “now with ios 9 support” but it ain’t mf 2015#### Black bars on top and bottom on iPhone X 1/5

By HaobepaHave the developers ever heard of uneven screen degradation on OLED screens? It’d be really cool if the app was actually optimized for the X instead of those #000000 black bars.#### Perfect 5/5

By A_jaleelEasy and powerful Helped me a lot🌷#### Mr silva! 5/5

By Atwoods biggest fanMr silvas class rocks with this brand new tool. Totally tubular dude!#### It won’t open 1/5

By MyshlWhenever I try to open it, it just keeps on loading forever. I can’t use it at all.#### Best School Graphing calculator 5/5

By Half of my bean saladI'm in a math 108 course in college, and this is the easiest, cheapest, sleekest graphing calculator around. User interface is bueno and well thought out. I can easily do my Maths now#### I found glitch 4/5

By thinbuddhaIf you zoom way out and then zoom in, your creation is stretched#### Blazing fast 5/5

By Eli LuberoffDesmos is bae#### Great app but… 3/5

By #JawesomeWhenever I try to get I to the app, it either crashes, or doesn’t let me in. I use des is on the computer all the time, but when I needed a relient portable calculator, the app didn’t do much.#### Can’t get inverse tangent 4/5

By BillReidHSBThe inverse tan function appears to be faulty (though I’m not a mathematician). For example, the simple trig coordinate problem tan to the -1 (inverse tan) (4/3) to find polar coordinates for the rectangular coordinates ithe point (3,4) returns 0.927... insread of the expected 53 degrees. A different calculator give the correct answer (53 degrees).#### Wow works great 5/5

By BxndjahsbisjshshhejaisjhdhsI love it so much and it helped me prepare for my math test. Thanks so much! I aced it!

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