メモリ電卓

A simple calculator with big buttons and a big display.
Calculation results and numerical values ​​can be saved in memory.

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This app will be a free version.
The paid version hides ads and has a voice function.
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■ Features
・ Calculation formula display
・ Memory memory
・ In-memory aggregation
-Comma separated on / off
・ Vibration on / off
・ Change the number of displayed digits