Calculator‪₊‬ 4+

Basic, Scientific, Plus Calc

Impala Studios

Designed for iPad

    • 4.7 • 1.6M Ratings
    • Free
    • Offers In-App Purchases


Calculator and Math Solver is the ultimate mathematics tool with everything you need to do basic calculations, complete homework or assignments, study for exams and even manage expenses. Easy to use and boasting an intuitive design, it's like having your very own private math tutor in the palm of your hand!

Trusted for 10+ years with over 210M downloads, the app covers multiple topics such as basic MATH, ALGEBRA, PRECALCULUS, CALCULUS and TRIGONOMETRY.

• Switch between basic, scientific and fractional calculations
• Upload, share and save your work
• Check and mark your homework
• Take photos, upload images or write in your equations to get instant answers from the math solver tool
• Share results with friends or other app users
• Study for exams hassle free
• Get currency conversion prices
• Available in 20 languages
• Featured by the App Store, Digital Trends and the Educational AppStore

Rotate your device to access all scientific buttons. Or if you prefer calculating in portrait mode, simply swipe left.

Keep track of all of your previous calculations with the History tape. Copy, forward or share with groups.

Maximize your productivity with the split view (supported on iPad devices)

Have fun calculating your numbers in style! Choose from over 70 colors and design themes, from Halloween and Christmas to Valentine’s Day, St Patrick’s Day and more.

• All new math solver
• Multiple lock screen widgets for quick access
• Basic, scientific or fraction calculators
• Currency converter
• Equation edit function
• Voice dictation
• Degrees or radians calculations
• Made for iPad & iPhone and Apple Watch

Love the app? Show your support by rating us It helps us build an even better product!

• 3 day FREE TRIAL
• AD-FREE with no hidden purchases
• Unlimited math problems
• Unlimited fraction calculations & currency conversions (including Bitcoin)
• Premium Customer Support

Subscriptions automatically renew each month 24-hours before the end of the current period and your iTunes account will be charged unless auto-renew is turned off at least 24-hours before the end of the current period. You can turn off auto-renew any time from within the app. Any unused portion of a free trial will be forfeited if you purchase a subscription.

*Math solving and step-by-step explanations available in English only.

If you have any suggestions or are unable to find the answers to any of your questions our support team is ready and happy to help. Simply email

Terms & Conditions: Privacy Policy:

The Calculator (C) 2000 Impala Studios.

What’s New

Version 8.7.0

In this latest update you'll find:
• minor bug fixes and performance improvements.
Thanks for your support, and enjoying using our app!

Love the app? Then don't forget to rate us!

Ratings and Reviews

4.7 out of 5
1.6M Ratings

1.6M Ratings

DJ Dumbi ,

Does not copy history result equation and result right

Update: I copy and paste my equation and result and it comes out a different number than I had calculated. Flaw in copy and paste on both choices. It has made me a little more frustrated in getting the result right. Weird functions and full screen ads. Luckily I have not purchased this app for no ads, I have removed the app and try again in the uncertain future. It was good till I had to wait a couple of more seconds for the X button to appear on the ads, fairly intrusive to calculate my tips from each individual cocktail waitress that has tipped me out. Nice clean layout but I think I'll stick with my Samsung S5 2nd phone calculator for the meantime.

Everything about this calculator is what the hard working waiters and tip receiving workers need to balance their day to day earnings quickly and correctly without pen and paper. The calculator just works and doesn't crash during use. Just need it to replace Apple's dumb calculator that just calculates and not help with historical calculations or messups. Double Thumbs up!

Developer Response ,

Thank you for contacting us regarding this issue. Fortunately, we are already aware of this issue and are planning to have this fixed as soon as possible. I can't make any promises about when this fix will be ready, but we'll do our best to solve this problem as fast as we can.

Our apologies for the inconvenience.

Eli Hoffman ,

Please just make a one time in-app purchase fee!

I absolutely love this app, since use it for school and it is just very simple to use while also being able to use more complex equations! My only problem is the fact that I have to pay a monthly fee just to use other calculator features that are on normal calculators is just ridiculous! I understand that you guys want to make money, but do you really, like really need to make people pay a monthly fee just to be able to calculate fractions! I would be absolutely fine if it was a one time fee, but why a monthly fee!? This is one of the top most downloaded calculator apps on the App Store if not the best one, not to mention the little adds at the bottom (not distracting at all) that you make money off of adds which shows you already make quite a bit of money off of more than half a million user, yet you have to go even farther to make me pay for a monthly fee for features in every ordinary high school level calculator! I would rather have to pay 5-7 dollars once for all of the other features instead of being fed off of for multiple years to come of using this app. I would rate this app 5 stars right off the bat if it got rid of the monthly charge and maybe even replaced it with a one time fee. Please address this concern, and thank you so much for your time.

naraabou ,

Pretty cool app!

I definitely recommend this app to people who would wish to customize their calculator in a way to make it more ✨decorative✨ and plus, you can use it like a normal calculator. Just with ads on the bottom of your screen, but they are not full screen ads that appear out of nowhere so that’s good, well, for me at least. Just to remind the people reading this, if you looked at other reviews, they might have said you need to pay to do certain stuff, which, indeed, you have to, I just got this app a week ago, so I don’t know much. When your using this app, you have to pay to be able to use the currency and fraction feature, but if your not planning to pay anything, they’ll let you try it out 3 times and then you can’t use it anymore. Overall this app is pretty good! I just took away one star cause I kinda wish they could have added more tries to use the fraction and currency feature, or in some way sort of remind us that we even HAVE a limited amount of tries, when I first used this app, I had no idea we had tries when I used the currency feature, so when it said you had to pay I was so confused. IM GONNA SAY THIS AGAIN, overall, this app is pretty good!

App Privacy

The developer, Impala Studios, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Purchases
  • Identifiers
  • Usage Data
  • Other Data

Data Linked to You

The following data may be collected and linked to your identity:

  • Purchases
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • User Content

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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