iPhone Screenshots


Sums is the new super intuitive gesture controlled calculator.
Making maths fast easy and fun!

Sums uses multiple gestures laid out like petals of a flower to make performing maths operations a much faster and more intesting task than with standard calculators.

With large easy to tap main keypad, sums is specially designed so it can be used one or two handed. All the standard maths functions like add, subtract, multiply and divide; are easy to access with a simple swipe gesture, and negating the current number quick and simple by rotating the device face down then back.

Calculations are recorded and can easily be reviewed with a downward gesture, and easily cleared by dragging the last item down or simply shaking the device from side to side.

The delete button is also special, as you'd imagine you can delete a number or decimal point, but it also lets you delete previous operations, so you can go back and edit the number you just entered. Its very easy and extremly practical, and works all the way back to the first calculation on the list!

In the full version there are gestures to access a memory store, so you can quickly and easily save important numbers and recall them at a later date, and and advanced scientific menu containing all the common trigonometric and arithmetic operations you need.

We've taken a lot of time to design and polish Sums so its an easy to use and fun experience, we hope you enjoy it too...


- Simple and intuitive swipe gestures
- Device flip gesture for number negation
- Calculation history tape
- Shake to clear history
- Multipurpose delete/undo

(in full version)
- Multiple memory stores
- Trigonometric and advanced arithmetic

What's New

Version 1.4

64bit updates

Ratings and Reviews

Gestures make things easy


At first i was confused as to how this made the calculator easier, but then it clicked...you swipe right to add, left to subract, up to calculate, and up right to multiply. After a few uses it becomes natural and easy.

I found this app because one of my favorite ipad apps is another of theirs, Fluidity, which is nothing like this, but which i have used for over a year, so this company is exciting.

As long as it remains snappy, this is my caculator of choice. Unfortunately my previous calculator app started taking too long to initialise.

Nicely designed app.


Great layout and surprisingly easy to learn gestures for the operations. If you only need quick add, subtract, multiply and divide, then this app is great. If you need more advanced functions, you'll have to buy the full version, only 69p.

Would have been 5 stars if the app allowed use of brackets. It doesn't, so you need to split the calculation up and store the results yourself. Only a problem for more complicated expressions, which probably isn't what this app was designed for.

Good app, worth the upgrade


Much faster and simpler than the usual calculator. 69p gives you significantly more functions like memory. You could argue that no one needs another free basic calculator, so pay 69p straight off and get something worthwhile.


Nigel Jenkins
3.1 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© 2017 nebulus design
In-App Purchases
  1. full version unlock £1.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

More By This Developer

You May Also Like