Finally you won't have to pull out your iPhone to make quick calculations any more!

• Complications for quick launching from a watch face.
• Supports different region decimal/thousands separators "," or "." vice versa.
• Makes use of the full Apple Watch 38mm, 42mm, 40mm, 44mm screen, displays equation in title.
• Result number formatting for easier reading.

Install the app on your Apple Watch in the Watch app under "My Watch" tab.

Optimised for the latest iPhones and comes with a large iPad calculator also!

What’s New

Version 3.5

• compatibility for new software

Ratings and Reviews

la_guera777 ,

Did not work

I purchased the app and it didn’t work on my watch. I tried restarting both my phone and watch and nothing worked. I emailed the manufacturer. I’m waiting on the response.

Developer Response ,

Please make sure watchOS has been updated and the app is installed under "My Watch" on your iPhone's Watch app first.

meites ,


I’ve looked at a ton of these apps .. this is the best layout for me. All the basic functions on one screen without having to go back and forth ... also handy is keeping the function key a different color after it’s depressed.

The only thing that would make it a bit better would be a horizontal tape at the top.

Autobob ,

Terrible!!! Maybe not!!

Well I just wasted $.99!!!!!
On second thought, and after a few minutes this works great I may update this as we go along, so far I would recommend it!


RIEU Limited
28.2 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© RIEU Ltd. 2018


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like