Calculate84

Name: Calculate84
Rating: 4.77887 (23240 reviews)

Education

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Calculate84

Education

4.8

23.2K ratings

Age Rating

Seller

Century Light LLC

In-App Purchases

$6.99 – $12.99

View in App Store

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User Reviews for Calculate84

Used it for like 5 minutes and woah

I know how to use a ti-84, they’re expensive and I can’t take one home but I’ve got one on my computer that does the same thing. I needed to punch in a bunch of derivatives of inverse functions which is a pain to do on the computer. I resorted to using Photomath to try and get it to solve but that doesn’t work so on a whim I downloaded this app and omg. It does exactly that you’d expect, all the shortcuts are the same, it’s got the capability to do all the calculus I need, whoever reads this from development go pat the creators on the back because I am so thankful

**insert nickname***, Mar 26, 2022

Best at its price point

Super smooth and works almost exactly like a Ti-84 from my very limited testing. The Ui is well designed and there are no ever present intrusive ads. It was actually recommended by one of my teachers when I was in algebra 2 as a possible replacement for a calculator. Still, of course you can’t use something like this on a test, and as far as I can tell it only has linear regressions, which makes its use cases limited as years go by. Still, it is definitely worth downloading for younger students who don’t want to spend the equivalent of 60 popeye’s chicken legs for a calculator.

adsylrod, Aug 11, 2021

Honest devs

I loved this app and used it for years, but recently they added advertisements. Obviously this was an inconvenience, but the devs came clean and said that they just needed some cash to keep the app up. For devs to be honest like this is something that everyone should respect especially with Apple taking 30% of App Store purchases. I bought premium for life for the maximum amount. Thanks Calculate84 for being a great app with honest devs! I highly recommend showing at least some support to the devs by getting premium even if you do move the slider to the lowest amount.

ddaaadddd, Nov 08, 2022

Forgot my calculator when I needed it most

I am amazed, continuously, at what developers can do these days. I forgot my TI-84 at home when I had every intention of grinding through some stats homework at school (I’m in college and taking a few online classes). Obviously, it is no substitute on the exams, but when I figured out I could do combinations and permutations and summations, I was so happy!!! No more switching calculators between backpacks, I’ve found my solution. Keep working on the apps function and the developers will make money off of this. There is even a copy function if you click the equation (highlights pink) and you click enter, just like normal. I look forward to testing the limits of this calculator and seeing what changes can be made. Good luck!

Eaurius, Oct 15, 2021

This app is seriously awesome. Just one thing I would recommend for some forgettable people like me…

There’s functions such as the NormalCDF and NormalPDF functions. On my physical calculator, there is a menu that pops up to input numbers like it does with the PropZInterval function. It lists the Values, you put the numbers in, and then press calculate. It’s just slightly tedious having to enter in the numbers inside the parenthesis, because you have to remember where the numbers go. Some calculators have this option, some don’t. if this calculator could have that, I would be set for life on this app. Really an epic app. Thanks.

ejeisishhahahabxx, Apr 27, 2022

Great for online school

If you’re an online student there’s honestly nothing better than this app. Not only does it perfectly match store bought calculators, it actually makes using it simpler. For example, when finding the peak of a curve, with a normal calculator you have to find 2 points close to the peak, then click to find the max/min. With this app, it automatically tells you max and min of peaks and valleys in graphs. When problems have multiple steps, it’s the small stuff that makes your life ever so slightly easier that you tend to remember. If you don’t need a physical calculator your best bet is down loading this app.

Epicurelius, Sep 30, 2023

Really Underated

For my ipad Ive been looking for the best iPad calculator. After a lot of looking this has been the best one so far. Nice looking UI, very responisive, never any issue. Supports floating windows which is really convenient. No ads, excellent user experience and incredible functionality. Just like my old Ti-84 it is almost 1 to 1. Best calculator app hands down, especially for students. Loved using this for physics and calculus. Really underated, needs more recognization for what it offers.

Junnii_, Jan 02, 2021

Perfect! Except for missing regressions.

This puts all other graphing calculator apps (that I’ve tried, which is numerous) to shame, and this is mostly because it WORKS. There’s no inconveniences with the workflow, for instance I can actually return to the calculation view from the graph view simply by hitting clear. Many other apps require the 2nd button to be pressed, then quit. How annoying!Oof I just realized it only has linear regressions, though. That’s almost a deal breaker. Well a diff app can be used for that...

nicknamenicjname13748483&3&, Mar 18, 2021

This App A Life Savior

I was learning about graphing the line of best fit in school and the teacher give it for homework, but I don’t have a graphing calculator. The teacher says that we could come tomorrow at ILT (free work time) but I can’t because I has to go to Digi Tool and finish my photoshop assignment. That when I came up with an idea to go online and search for a graphing calculator. I try many many app but non of them let me do the “4:LinReg(ax+b),” I need to pay for it. You don’t know how happy and reliefs I feel when your app allow that. You save my grade, thank you!

Phoneworm, Nov 19, 2019

Amazing app. Better than my physical TI calc

I absolutely love this app. Works perfectly, can handle all graphing duties, better functionality than the actual physical calc with the ability to highlight/select previous answers and equations quickly/scroll/graph in different colors/auto max min intercept when tracing. All settings and modes work correctly. I’m almost at the end of my semester with chem/physics/trig and this app has been right there too without fail. It’s to the point I hate exams mostly because I’m forced to use my annoying TI calc.

pkpkpkok, Nov 18, 2021

Description

A MODERN GRAPHING CALCULATOR ON THE iPHONE 1. Fast, Interactive Touch-Screen Graphing 2. Everything is where you’d expect it to be 3.

Scrollable windows (no more spamming the up arrow keys) 4. Intelligent error messages 5. Convenient WHY MAKE ANOTHER GRAPHING CALCULATOR APP? 1. We (the creators), once relied on graphing calculators, and after installing countless, similar apps, we couldn’t find anything useable. Hence, we made our own. 2. Before launching on the App Store, we personally worked with a limited, yet sizable, number of students to continuously improve the app. HOW TO SEND FEEDBACK 1. Press the red feedback button.