Calculator Max 4+

Modern All-in-One Calculator


    • 4.2 • 39 Ratings
    • $0.99
    • Offers In-App Purchases


Calculator Max makes both simple and complex calculations easy. It offers all calculators you’ll ever need in one carefully designed, uncluttered and easy-to-use package.

Switching between calculators is buttery-smooth and natural. The basic calculator with big buttons swiftly handles everyday tasks. The more advanced scientific calculator is loaded with all important mathematical functions and constants.

A history tape with your entries is comfortably accessible in all calculator modes. Thanks to it, you never lose track of what you’ve entered and the entries can be reused effortlessly in your calculations. The tape can also be exported to common formats and shared or printed.

On the large screen of any iPad it is pure joy to make handwriting notes or draw your ideas right in the app. Write down any math equation and let the app calculate it for you in the blink of an eye. Or reuse any handwriting which you can easily convert to editable text.



— Basic calculator with history tape
— Scientific calculator packed with functions and constants
— History tape with the calculations at your fingertips in all modes
— Extensive rounding options (e.g. two decimal places for accounting)
— Up to 5 memory slots for frequent numbers
— Plain Text, Monospaced Text, CSV, PDF and image export formats
— Advanced export, share and print options
— Scribble Pad on iPad for easy math equations solving, handwritten notes and sketches


— Side tape and detachable tape layouts for easier long records handling
— Clean and uncluttered interface
— Universal app for all your iPhones, iPads and Macs
— User interface precisely adapted for each device capabilities


— Handcrafted design themes with dark mode and translucency support
— Fully adjustable windows with all standard macOS features
— Carefully selected sound sets

What’s New

Version 4.4

— Run smoothly on macOS 14 Sonoma
— Stability and performance improvements

Ratings and Reviews

4.2 out of 5
39 Ratings

39 Ratings

Renard M ,

Great Multi-function Calculator

This is more than just your standard calculator. There are 4 modes to choose from. The one I find most useful is the Tape Mode. It is great for itemized calculations.

There are just a couple of small issues that prevent me from giving it a perfect 5-star rating. The first is that while having a Scientific Mode is great, having a Scientific Mode with a graphing screen would have made any other calculator app obsolete. Secondly, there is no backspace key. This would make it so much easier to fix the most common typos. Instead, you must clear and re-enter the entry altogether. Not a huge problem, but just a bit inconvenient.

LagoonSurfer ,

Was A great Tape Calculator

Prior to the update this was just the best classic tape calc. It was straightforward and worked really well. The update is buggy to say the least. The last several times I tried the basic now-handicapped version (keep in mind I had previously paid for the app) — which the update converted my paid version to — it was completely non-functional. By that I mean it would not function as a calculator. I emailed the developer and they did not respond. I was just looking for instructions on how to make the now-hobbled app I had always used just be a calculator.

This brings me to the next concern. If the update was going to turn my paid-for app into a nothing-app there should have been some warning. This was underhanded I feel. I don’t mind paying a developer for their hard work. But don’t steel my previous purchase. Let me know what you are doing and I will decide. I have since found a replacement tape calc app (10 Key Universal Calc) and was happy to pay 3 times the cost of the ‘key’ to make CrowdCafe’s app a calculator again. (Still only talking $6).

Bobjtx ,

Good app made bad! Don’t update! Don’t buy!!

This was a good app that was intuitive and easy to use. Calculators should be quick and easy to use, as this one used to be. However, This latest “modern” update turns an easy to use app into an obtuse mess. Grey fonts on a light grey background make reading difficult. Minimized / no borders around anything make icons and functions bleed together. Hiding the tape so one can now “scroll it” instead of just looking at it when it was normally visible, is just dumb, and makes one hunt for something that just used to be there. Save yourself frustration and stay with the current version. Do NOT update like I did.

Also, given the history of this developer, do NOT buy! Most likely, in a couple of years the developer will release another update that will again invalidate your previous purchases. I don’t trust companies that take away features you paid for, just so they can charge you again for an app that was previously working fine. Off to find a replacement.

App Privacy

The developer, CrowdCafé, 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 Not Collected

The developer does not collect any data from this app.

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


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

More By This Developer

You Might Also Like

Calculator M+
Print Calculator
Basic Calculator Pro
Calc Pro HD – iPad Calculator
Calculator Plus - PRO