Download Equation Solver apk 3.1 free for Android smartphone
Posted by Alex Gwyn in Tools  Jan. 23, 2014  68 Comments
Apk file size: 1.7 MB
Finally an app that can solve for all types of equations and isn't just limited to a formula!
Equation Solver is an app that can solve for one variable in any equation, it is extremely versatile and a must for anyone in school or anyone that deals with equations on a daily basis.
Please note all variables must be lowercase!
Functions supported:
+, , *, /, ^ (exponent), sin, cos, tan, asin, acos, atan, sqrt (square root), abs (absolute value), ln, log
Instead of depending on hard coded formulas, Equation Solver finds the answer through a brute force method. This allows the app to solve for all sorts of problems in a relatively short amount of time!
Please email me at alagoapps@gmail.com if you have any questions/concerns or bugs. Please attempt to contact me before leaving a bad rating to see if I can help.
Known Issues
 None at this time
Permissions
 Internet is only needed for the advertisement, NOTHING else. This app does not rely on an internet connection to solve equations and can function offline.
(If you have an interest in a $.99 adfree version shoot me an email at alagoapps@gmail.com)
Whats new

2.21
Fixed an issue where the icon would not appear on some devices
2.22
Fixed bug where some devices couldn't enter multiple variables
Fixed an issue with the icon (again)
3.0
UI and graphical overhaul
Custom Keyboard
Added History
Added Sharing
3.0.2
Slight fix in solving engine
3.1
Fixed Bugs in solving engine
Made settings swipe to open
Slight UI changes
Added "pi" to the keyboard
Alex Gwyn part of our Tools and have average installs from 100000 to 500000. Last Update Jan. 23, 2014. Google play rating is 73.9246. Current verison is 3.1. Actual size 1.7 MB.
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68 Comments
Frida Shroyer
It works. Inputting values with exponents is cumbersome and not entirely intuitive. That being said, I did figure it out and was able to finish writing the homework assignment for tomorrow.
Maria Rodriguez
All right.... Well you can only do equations on here and I'm not sure if the answers are even right.
mark parsons
Very good but Will solve for any variable in an equation but I would have liked to see the rearranged equation that it used. For V=IR you can ask to solve for R. It will prompt for the values of V & I then give the answer. I would have likedalso to see the equation the app used ie R=V/I.
Kareem McClam
Best Ever This really helps when i have h/w for math class I would give a five but everything needs improvement
WhatThe Fuska
Not quite there There's no option that I can see at least that allows exponents or square roots etc. If that were to implemented this soon would be perfect
lollipopyx
Add graph function maybe? It's a really good way to double check my answers and all but would be better if a graph function was added. :)
Xavier Hains
App made in heaven Thank you! You don't know how much time I saved. Before I got this, I thought it was going to take me an hour or so to finish my math homework and now it took 7 minutes to finish 20 questions of twostep equations. That I thank you for.
Sheng Hong Pang
Nice app└(^o^)┘ It solves quadratic equation very well, and I can check my answer with this app. Moreover, the size of the app is smaller than others.
Nigel Pounder
Good work works well for me. Would be even better if you could build a libary
Chris Grim
Doesent work with numbers to a negative power for example if u put in 2^2 wanting to to the power of 2 it takes it as 2^12 because it has no variation between negative or minus symbols
opal mines
Division There's no division? And all of my problems are written like a fraction of sorts, there's no option for that either
KARLA VANESSA
Amazing My teacher is giving this and he let us use calculator but... yeah he don't know I'm using this calculator ~~~ Thanks T__T
Tom Fitzsimmons
Easy to enter quite complex equations but most of the time answer is "illegal variable" so have to proceed to solve myself  defeats the purpose of the app!
Steve McCollum
Good as far as it goes... Would like a factorial function to make certain probability calcs possible.
Carter Peterson
Great app It does just leave sometimes but all you have to do is reopen it
shivang rathode
Not working properly I have to solve linear equation in one variable but this is showing wrong answer
lexi love
Thanks Thank u so much this helps me all the time love it
John Perez
...! This is the best app ever, I needed it to solve those problems I had a hard time with. I wish I could give it 6 stars
jackie ling
It was working great when I first download this app. Now i'm using it again and it will solve my equation.
Hannah Weizenegger
Question.., Is there an option for fractions? Because I just put the / sign so plzzz tell me if I'm wrong.
Evelyne Cooper
It's okay It helps alot, it will be better if u add factions and negative signs too. Thank you.
Niels Saavedra Tapia
Excellent very good app, but seems that you don't have euler constant or exponential function (e=2.72...)
Imrish Ken
Disappointed I thought it would show the work but turns out it doesn't
RexpertheKinG Nuttin
Pretty good but... This app is great at solving equations if you know how set it up but I would like to see the equation being solved.Other then that this app is great
moustafa saad siddiqui
Its good but please add a multiplication and division sign
Josh Lenon
Works great Would give 5stars if it showed the steps
Hurree Brookline
It is really bad(example numbers like 2315 )it can t solve :(:(:(
Stampy Jr
Best way to do algebra Whooooooooooooooooop Yeah!
George Grund
Good app Some problems with Logarithmic equations, but its not incorect
Pranay Sajdeh
Great Solves equations pretty well it seems :)
Rohan Amberkar
Algebra Need a way to solve for x in terms of another variable
TEO AGULAR
Get it It helps you with the hw get its free and it works
Rupam Bhattacharya
Good one Can it have a feature of showing how to solve the problems? Please
tasmiya iqbal
Its ok Doesn't have the squared button...!!?
suvranil dutta
The Perfect Woooow it's fantastic... Just what a great mathematical program u did... It is a great help for me.. Thank you very much...
Nauman Tariq
Math Tools A must have application for teachers
Genet Geleta
Not downloading Does not download please fix
Mark Landis
Equation solver Just needs to add < >
Dakavin Pannell
Thanks I don't care if i get wrong answer
Sachin Pandit
Good one.. Given 5 stars to appropriate efforts.. Putting number in equation lil clumsy. GuI can be improved
Kyle Elzinga
Great app.,Especially for a free app.. No ads
Benidck Barsomo
Differential Equation Not Supported I cant solve some problems in D.E (e.g xy*dx(x^2+2y^2)*dy=0) please let me know how it works , if ever .
Desmond Thang
Great app It's great for basic equations, which is what I do. I'm not too good at equations and love to use this app to help double check my answers.
Tom Polk
This works well for me. I've looked for years for an app that would let me type in an equation with multiple variables like I could with Solver on my 20yearold HP 95LX palmtop computer. This is the first app I've found that does exactly that. I reserve five stars for perfect apps, so my four star rating is excellent. What makes this not perfect for me is that it's not as intuitive and as fast as the tiny executable in the HP 95LX. HP's old Solver runs blistering fast on a 5 MHz 8088 processor, allows for multiple character variables and uppercase, has a nice running list of multiple equations, and is generally more intuitive. Beats me why no one has been able to come up with something as elegant twenty years later, but this Equation Solver comes pretty close.
deva yekula
Just good Yeah it solves simple equation's but not compound and it takes lots of time to show the answer but it done very well you can dwnld ds . and u have to change bound for large answers
Kamryn Johanns
Amazing When ever I need help on my algebra homework this app can solve it all!
Robin Henkle
Too basic Only good for equations that have integer answers otherwise it just estimates the answer, not very mathematical
Mike Lins
No square roots! If there are no square roots or indexes, then what makes this app different from the stock Android calculator?
Mark Ortega
Not sure I'm not sure if it is giving me the right answers to multi step equations with distributive property
Macaulay Hamp
Good but should make it so u can see how the question is worked out
suharyanto 1269
Useful Help me to calculations some mathematics formula which i use everyday :)
Paolo Vila
Yo u cantor donde fractions It is a great application an really simple to use but you cannot solve fractional ecuations with it
Kate Sanchez
Love it I have no more trouble of doing my HW no more
Kavon Jones
Best app ever!!!!!!!!! This app did all the equations I typed in and when I checked them my self they were all right this app saves so much time.
longinus overman
Pretty good app I would've given this a 3 star rating but apparently, the competition is not so stiff among the free calculator market. Downside: it only answers questions within 100 to 100. Upside: it doesn't crash like the other 5, supposedly superior, apps I loaded and erased
Venessa Emmanuel
Needs upgrade No bad but i cannot seem to find to work inequalities with < andandsigns.
Jonathan Clarke
Haha Doesn't show steps. This is worthless. Who the hell wants knowledge without understanding
Edgar Ruiz
Its a good app I use it to double check my work there is still a couple equations it won't answer but other than that this app is great it helps me do my math homework
Alahna Bennett
Aaaaahhhh Where is the divided by sign?I wil rate 5 stars if someone tells me. Or algo could tell me.
rishi dhawan
Complex roots The calculator doesnt give results of eqns which involves complex roots ... Fix this and I would give 5★
Shafiq Ayach
Good Extremely useful we study equations at high school and it helps me to check after words have I done any mistakes keep up the good work!!!
Katie Marie
Thrilled Can't believe I found this app. Homework struggles=GONE.
Patrice Andamo
Necessity This app is just what I need. Kinda hard to input stuff but it works.
Kamal Mahmoud
I disliked it It's so bad. It doesn't give answers more than 100000. It's so slow for large numbers.
Wajeeh Ul Hassan
Normal Normal but it doesn't shows the whole procedure some times but it is time saving.
Somesh Sharma
Now it's become very buggy It crashes all the time for quadratic equations
Qiushi Liang
Its good but.. Its good app and its helpful. However sometimes it just can not solve equation with a extremely small number. For example the acidity, 1E14. Its just can not solve it.
Mina Gram
I LOVE THIS APP!!! I take forever with math but always second guess myself and I never want to back track my work this app is perfect!!!