October 19, 2015

Unit Converter Pro (v2.3) manual

Hello. I'm android boy, working for Smart Tools co.,

Unit Converter pro is ad-free version with more features. Ads are replaced with useful messages(formula, unit name). It requires internet permission to update exchange rates.

The app would not include all units in the world. It shows only common units selected by users' feedback. And, the different unit sets appear depending on user's country and language.


※ Introduction video



※ Unit sections
 ① Basic : length (distance), area, weight (mass), volume (capacity)
 ② Living : exchange rate, temperature, time, speed, shoes, clothing, hat, ring
 ③ Science : pressure, force, work (energy), power, torque, flow, current, voltage, density, viscosity, concentration, astronomy
 ④ Misc. : angle, data, fuel efficiency, cooking, illuminance, radiation, prefix, binary (ASCII), time zone, blood sugar, AWG


 How to use
 1) Select a category (Basic / Living / Science / Misc.)
 2) Select one of 4 sections
 3) Select an unit by LONGCLICK on the list or click the selector
 4) Tap number input box, enter numbers with the keypad


※ Currency (exchange rates)
 - 111 currencies of 140+ countries, Bitcoin, XAU
 - [My currency] is set automatically depending on your telecom carrier and language.
 - You can select a region in the list on the app bar. All / Majors / Europe / ...

 - The refresh icon can get the latest exchange rates from our servers.
 - The exchange rates are based on Back of canadaFx-exchangeFX Exchange Rate etc.
 - Time delay occurs, at least 1-12 hours. The rates are for information purposes only.


※ Favorites
You can choose 4 favorite sections in Living, Science and Misc. categories.
Toggle checkboxes in the order you want (①-②-③-④).
When [Currency] section is selected, the favorites icon does not appear.


※ How to open "Torque" section
  ① go science category
  ② click the favorites icon on the app bar
  ③ release one of current 4 favorites

  ④ check Torque as a favorite
  ⑤ back to main
  ⑥ tap Torque section


※ Menu & Settings
The settings of pro version have more useful options.
① My Currency
② Region : select currency region
③ Layout : select currency layout
④ Custom list : make your own list of currencies

⑤ Decimal format
⑥ Accuracy
⑦ Vibration : vibration on/off on keypad


※ Custom list of currencies
 - Go menu > settings > custom list
 - USD is always the first.
 - Turn on currency checkboxes in the order you want.
 - You can select up to 7.


※ How to input fractions
In length and weight sections, this app has [. /] button on the keypad. You can input fractions with it.

ex1) 5 1/4 =>  [5] + [./] + [1] + [./] + [4]
ex2) 3/8 = 0 3/8 => [./] + [3] + [./] + [8]   (Look out!! 3/8 is less than 1.)


※ How to input "ft and inch" at the same time
Select "ft in" unit. For various inputs, you can use fractions. "lb oz" are the same.

ex1) 2' 3" : select [ft in], input [2] + [ ' " ] + [3]
ex2) 5' 8.5" : select [ft], 5' 8.5" = 5 17/24', input [5] + [./] + [1][7] + [./] + [2][4]
ex3) 1' 2 5/8" : select [inch],  1' 2 5/8" =  14 5/8", input [1][4] + [./] + [5] + [./] + [8]


※ How to input "deg min sec"
Select "deg min sec" or "deg" unit in angle section. You can input "deg min sec" with [.˚ '] button on the keypad.

ex1) 1˚ 23' 45.67" =>  [1] + [.˚'] + [2][3] + [.˚'] + [4][5] + [.˚'] + [6][7]
ex2) 0˚ 1' 2" =>  [.˚'] + [1] + [.˚'] + [2]


※ Data storage / flow ?
The app shows data storage and data flow in data section so as to save a tab. It is not a mistake. Similarly, it shows speed and running face units in speed section, too. By the way, do you know the difference of "kb", "kB", "kib", "kiB", "kbps"?
 b : bit
 B : byte
 k : kilo (1000)
 Ki : kibi (1024)
 M : mega (1000 x 1000)
 Mi : mebi  (1024 x 1024)
 kbps : kilo bit per second


※ Landscape mode
It supports landscape mode for tablet PCs. Select more menu (3 dots) at the top-right corner.


 FAQ
A. How can I convert from gram to litre?
Q. "gram" is weight unit, "litre" is volume unit. They cannot be converted. Volume x Density = Weight. Water 1kg = 1L, gasoline 1kg = ~0.70L

A. Where is "A(amp)" unit?
Q. Click the favorite icon (star) in Science category. Select [Current] checkbox.

A. "kg" is not weight unit, but mass unit.
Q. I know. weight = mass x Gravity. "mass" and "weight" are same in earth.
Above all, "weight" is a friendly word and the public do not understand "mass" perfectly.

A. I need more units such as micro, nano, deci ...
Q. Please open "prefix" section.


 What's new
 - v2.3.9 : Dark brown style, SCR, AMD, AWG, KGS, LYD
 - v2.3.8 : [lb oz], AOA, AZN, XAU, ZMW currencies
 - v2.3.7 : Ring, [ft in]
 - v2.3.6 : BYN, BWP, DZD, GYD, PGK currencies
 - v2.3.5 : dessert spoon
 - v2.3.4 : Concentration
 - v2.3.3 : Shoes, Chothing, Hat, kcmil
 - v2.3.2 : Custom currency list, new icon
 - v2.3.1 : ASCII, GEL, NIO, TTD, MMK, AFN, ETB
 - v2.3 : Material design, Bitcoin
 - v2.2 : Favorites
 - v2.1 : Currecies (exchange rates)
 - v2.0 : Released (Dec. 24, 2013)
https://play.google.com/store/apps/details?id=kr.aboy.unit

If you have any idea to improve it, feel free to contact me. androidboy1@gmail.com
Thank you.