OneThumb Keyboard

This is an easy-to-learn big-key keyboard with instant numbers. Don't install it if you want autocomplete or other extra features.
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OneThumb Keyboard (OTKB) is the familiar qwerty keyboard with a twist. It puts all the letters in the familiar qwerty order, but it has just 15 big letter keys. Each key tells you how to type its letters:
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> To type the large letter, touch the key.
> To type the upper letter, swipe up-left.
> To type the lower letter, swipe down-right.
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It's a little easier to touch than to swipe, so the designer took the letter frequency of the English alphabet into account when deciding which letters you type by touching & which you swipe. With the help of 10 digits & a few punctuation marks to stretch things out, 15 of the 16 most-used letters became touch letters. So you touch 88% of the time & swipe only 12%.
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Rotate your phone to landscape for a password keyboard. You can now enter all letters, numbers & symbols on a desktop keyboard without having to switch to a number/symbol keyboard. NOTE: Don't rotate in the middle of a word or password. The unfinished word may be deleted.
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This is a blue version of Qwerty6 Keyboard. Some of the coding of this app is based on the SlideType Keyboard by Alejandro Grijalba (in the Play Store). OTKB uses the QwertyX Keyboard Design (copyright © 2011 by Ernest Ruckle).
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SAFETY
There is no safer app than OTKB. The warning you'll see when activating OTKB is the same for all keyboard apps. Only word prediction keyboards collect your personal information.
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U S E R - G U I D E
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To Activate (Please read carefully)
OLDER PHONES: Phone Settings/Locale & text, Language & keyboard, or Language & input. Check OneThumb Keyboard. Long-touch in text-box or pull down Notifications, choose Input Method, & check OneThumb Keyboard.
ANDROID 4: Phone Settings/Language & input/Default/Set up input methods.
ANDROID 5 & 6: Phone Settings/Language & Input/Current keyboard/Choose keyboards.
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GET STARTED
Put your phone with OTKB showing next to your PC keyboard. Compare the 3 lines of letters. Notice the location of the numbers & these characters: !@&"-?$',. Rotate to landscape mode & note the 9 symbols keys on the right.
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HOW TO SWIPE
To type a Q, put your thumb on the middle of the QEW key & immediately move it towards the top of the phone. Lift your thumb when you've moved it about the height of the key. Swipe down for the W. A short, quick swipe is best. Also try swiping diagonally, up-right & down-left, not vertically.
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SPECIAL KEYS
> SHIFT - Touch to toggle shift mode. Swipe up to turn on caps-lock. Swipe down to turn off caps-lock. Rotate phone to landscape to enter all numbers & symbols.
> SPACE - Touch for a space. Swipe up for a period/full stop. Swipe down for enter/return. Long-touch for more punctuation marks.
> DELETE - The only key that repeats if you hold it down.
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POP-UP CHARACTERS
When you long-touch most of the keys, a small pop-up keyboard will appear. Most letter keys have accented letters for Spanish, French, German, Italian, Polish, Dutch, & more. Other keys have miscellaneous symbols.
> R key - `~#%^
> D key - currency symbols €£¥¢
> F key - bracket symbols ( ) [ ] { }
> H key - Spanish punctuation ¿¡«»
> M key - math symbols */=+<>
> SPACE key ;:|_
To exit a pop-up keyboard, touch the small x key or press your phone's BACK button.
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EXIT THE KEYBOARD
Press your phone's BACK button.
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MAIN MENU
To get to the Main Menu (Help, Settings, About), go to your phone's Apps drawer & touch the OTKB icon.
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MORE HELP
See the screenshots for some tips & http://www.qwertyxkeyboard.com/Q6KB.htm for more help. (OTKB works the same as Qwerty6 KB.)