# calculacha! is an amazing calculator app from the creator of tweecha that lets you easily work out percentages!

English | Japanese

calculacha! is an amazing calculator app from the creator of tweecha that lets you easily work out percentages!

tweecha has been awarded #1 in Twitter app ranking.

For enquiries tweet @iam_o_sin (Please do not send emails or enquire within app reviews)

## Description

#### You can easily calculate percentages!

You can calculate percentages easily! Incredibly handy! Below are examples.

• Calculate the post-tax price of 5,500JPY (Japanese consumption tax is 8%): 5,500 + % = 5,940
• Work out the 25% off price of 10,000JPY: 10,000 – 25 % = 7,500
• What is 30% of 30,000JPY?: 30,000 * 40 % = 12,000
• 43% of 120,000,000 people : 120,000,000 * 43 % = 51,600,000

#### Yes it’s true! This calculator can talk!

It reads out loud the key you’ve pressed or a search result you’ve tapped!

*To enable text-to-speech you need a Japanese text-to-speech software such as N2 TTS.

• Install N2 TTS.
• Open voice setting screen (upon installation it opens automatically. To set later go to Android settings > voice input/output > set text-to-speech)
• Go to ‘Engine’, tick KDDILABS N2 TTS to enable.
• Set default engine to KDDILABS N2 TTS.
• Tap ‘Play Sample’ and check you can hear a Japanese voice.
• Enable text-to-speech in calculacha!
• Touch keys to check for sound.
##### I pressed the wrong key! Wrong digit! I want to do it again! Press clear button to cancel the last digit. Press and hold to clear all!

‘C’ button is the equivalent to ‘backspace’ key on a computer and deletes the last digit. Press hold to initialize value or calculation.

#### What would be a useful feature? Decimal calculation by typing in a denominator of a fraction.

For 1/2, key in 2/=, 1/3 is 3/=, 1/125 is 125/= and you get your decimals.

#### Type 1 million quickly! There is a ‘000’ button that lets you key in thousands.

You don’t see it much but this ‘000’ button is useful!

#### What was the last button I pressed? Displays last calculation on the top left side of the screen.

Displays status such as your calculation (*,/,+,-) and error (E), reset (C), calculation result (=).

#### I use plus-minus change button a lot.

It’s useful to have!

#### Displays 48 digits?! Changes font size automatically.

You see it a lot these days. I have built it in, too.

#### I know the one where you can do the last calculation again by pressing = button!

This function is available on most cauculators. After you pressed 1+5=, press = again and it adds 5 again.

#### Hold on, are there more hidden functions?!

Indeed, there are! You can change fonts! You can have Pi-chan on your screen! Find them!

You can also tweet. Find it in the menu!

Waiting…

I wish!

Fonts:

（N/A)

## Known Problems

• Show the AdMob banner with a probability of 1/2
• Show the website in English the device not in Japanese mode
• Show the AdMob banner the device not in Japanese mode
• Show the GameFeat ads in landscape
• Replaced English resources
• Website in English complete
• Replaced screenshots in English at play store
• Changed link to website in English at description at play store
• Changed app name in English form “DENTAKU CCHA” to “calculacha!”
• Changed tweet message in English
• Changed app name in English at play store

• The operation of up to # 24 minority

• Released at play store!

• Restored font setting at start-up.
• Restored text-to-speech setting at start-up.
• Restored Pi-chan display setting at start-up.

• Now allows landscape view.
• In case of no text-to-speech, N2TTS play store is displayed.
• Modified: resetting of display

• Usage analysis tweet
• Pi-chan appears somewhere (please find him as this is a hidden function)
• Prepared this introductory page for v0.5.0 release.

• Menu button is now always displayed (compatible with android 2.*, thanks to @takke’s article)
• Turned off text-to-speech at start-up
• Changed default font

• Changed app name from ‘DENTAKU CCHA’ to ‘DENTAKU CCHA!’ (provisional)
• Set app icon (used material available for commercial use)
• Switch between 15 different fonts (all changed to fonts that are available for commercial use. Try and find out how to change fonts!)
• Text-to-speech when pressing button (internationalized)
• Vibrate when pressing button
• Tap result to be read out loud (internationalized)
• Press and hold result and copy to clipboard
• Fixed to portrait view
• Minor adjustment to layout and color.

• Changed button design
• 9 different fonts available (Try and find out how you can change them!)