Twin User Reviews

Top reviews

Too simple

The idea of two calculators with movable results is great. But I wish it was a twin scientific calculator. As it stands, it is not very useful for anything beyond very simple calculations.

Response from developer

Thank you very much for downloading and for your valuable review. Your comment will be considered for future development. For your reference, this app was developed with the desire that many people would like to use it easily. For example, when go to shopping and find a product for 987 yen for 3 pieces and 1245 yen for 4 pieces while shopping, this App would be able to calculate "Which is cheaper? ","How much cheaper" easily. (Details please see https://twincalc.jp/en/ ) Therefore, so far this app does not have complicated functions like scientific calculation. If you need to do complex scientific calculations, please use the preinstalled calculator App in your iPhone with landscape mode.

Works great. Please add support for portrait orientation.

This is a very useful app. The only thing missing is the ability to use it without turning my phone. Please add support for portrait orientation.

Response from developer

Thank you for your happy comment. We are very glad to read that. According to your requests, we are now developing to realize. Please wait for a moment. Thank U 7 Oct New App that two calculators can be used for both vertical and horizontal position has been released. Please download. Tks

Convenience and Precision

The idea seems simple of having two calculators, but the result of how they work together is superior.

The ability to calculate two things side by side is helpful when comparing prices, performing complex conversions, validating finances, etc.

Wonderful idea, pure genius!

Response from developer

Thank you for downloading our App. We are happy to hear your compliment. Thank you!

Simple. Effective. Why didn’t I think of that!

What a novel concept. On the surface it seems redundant but after considering how often we use math and I find myself pulling up the calculator I realized just how amazingly efficient this calculator layout is.

Simply a brilliant idea turned into a wonderfully useful app that will save me a ton of time in day to day life!
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Response from developer

Thank you for downloading. Also, thank you for your nice comment. I am very happy.

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