Calculate84 User Reviews

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Amazing app done right

Donโ€™t listen to these morons this app is a life saver, there are basically no ads and it does everything an actual TI-84 would. This is the Mona Lisa of calculator apps, Iโ€™ve gotten all of my engineering Comrades to download it, have heard nothing but praise. A must download for any stem student!

Wow

Oh my goodness this is beautiful extraordinary app with bright extravagant colors and amazing numbers love it no cap straight facts 5 stars

Works well and well prices

As the title says, it works incredibly well and it is priced competitively. Used the free version for quite a while and decided to support the devs as I see they are keeping polishing the app with regular updates. Thank you!

Great for online school

If youโ€™re an online student thereโ€™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, itโ€™s the small stuff that makes your life ever so slightly easier that you tend to remember. If you donโ€™t need a physical calculator your best bet is down loading this app.
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Definitely would recommend

Honestly, Iโ€™ve tried so many graphing calculator apps and none of them have replicated using a real Ti84, but when I downloaded this app, I chose to use it over my physical calculator. The haptic feedback feels so good and the graphing features rival those of the popular graphing platform DESMOS. As I said in my title, I would definitely recommend this for anyone looking to simulate their graphing calculator experience on their iPhone. Thank you devs.
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No apps

One significant shortcoming is that none of the TI-84 apps are available (if you press the APPS button the only option is quit).

Great calculator but some bugs

This calculator is a great way to avoid spending $120-$200 on a Ti84 calculator. However I have found some bugs when it come to running some of the statistic test such as 2propztests etc. however for the majority of your functions, you canโ€™t get a better calculator. -response to developer: The errors I found were in the statistics tests under โ€œSTAT โ€”> TESTSโ€: 3,4,6,9,0,B,and E. Basically any distribution with 2 samples or lists would not provide z score, p value, etc or necessary test statistic/parameters. (It would merely summarize the data I entered and not provide the solution.) -2nd response: Hereโ€™s one but I wonโ€™t do one for all the tests I listed as they run on similar principals. 2-sampleZtest Standard deviation 1: 4 Standard deviation 2: 5.1 X bar 1: 13.6 N1: 200 X bar 2: 11.6 N2: 11.6 Null hypothesis: not equal to mu โ€”โ€”- Expected answer: Z=4.36โ€ฆ P=1.28โ€ฆ* 10^-5 X bar 1 : 13.6 X bar 2: 11.6 N1: 200 N2: 200 โ€”โ€”โ€” Received answer: It used to summarize the entered data but now appears the same p and z values are now presented. Thanks for resolving the issue.
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Response from developer

๐Ÿ‘ glad the bugs got resolved!

Works for a lot but not everything

I use it all the time for school work but Iโ€™m unable to find a button for sinusoidal regression, that the Texas Instruments ti-84 has. As sinreg

Great app

Great price, thank you

Great app, needs additions.

I love the app, and even got the paid version simply because I love the app, but there a lot of things that have yet to be added. There are no applications, so it would be wonderful if there was a way to download different TI applications for different uses. For instance, the app used for finding rational roots quickly.
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