Do you feel most checklist tools are too rigid and/or too specific to use? Pen-and-paper is still quite possibly The Method? This tool aims solving that: create list, use 2 types of checkmarks, and optionally let you tag a photo (by file, and by camera if your device offers it)

Free! Easy to use tip calculator. The perfect tool you need to calculate the desired tip with or without tax and split the bill between all your friends.

Free! Easy to use mortgage calculator or loan calculator. Use it to calculate mortgage payments, car payments or personal loan payments. Calculate monthly payments. Find out how much the loan is costing you by seeing how much the total loan payment is and how much of it is interest. Also view an amortize schedule of each loan payment and balance for the life of the loan.

Powerful & easy-to-use score keeper for board game, card game. Supporting changing more than one players' score in one time, and build-in calculator for complex case.
App-free version is comming soon~

It's a wild world out there. Want to know the status of an IP address? Let IP info Detective investigate it for you. Private I report will give you detailed information regarding the IP address in question. Read the report and decide for yourself. Useful if you need to know an IP address status in order to prevent, correct or defend ourselves or others in situations like using p2p networks, irc, chat, social networking or other internet activities.

iCalculators is an ultimate collection of tools(calculators) that makes our lives easier.

Calculators

Loan-Calculator

Scientific-Calculator

Numeral System Calculator

Tip Calculator

Sonoid is a sound meter application.

Screen on toggler is basically a replacement tool for the default search button on your android phone when you long press it. It allows you to quickly toggle your screen's timeout from always ON to your screen timeout's setting and vice versa.

New In V1.4
- Added new changelog dialog
- Removed titlebar from preferences page
- Added compatibility for Android 3.0
- Fixed some issues when Screen On Toggler is set to start on boot
- Fixed major issue when toggling screen timeout on/off

A subnet calculator for IP networks. Real-time updating and copy/paste support!

Mitsubishi Fault Codes

Perfect Airplane Toggle Widget

MorseCode Player is a tool for morse code making, playing and practicing.
It provides an easy way to learn morse code.

I am a widget not an app: remember it when you try to find me on your mobile.

My dial shows chinese numbers and I run with three hands: looking at me, you can see the seconds passing by.

I sleep as well when your mobile is sleeping...therefore be patient I need a little bit to wake up afterwards

TwitLonger extension for Twidere

Calculator with variables

This application allows the user to generate random whole and floating point numbers, as well as lottery numbers. Also has a boolean number generator, that allows the user to generate either 1 or 0, True or False, or Heads or Tails.

Countdown Finally, read out
The main function code table can be set to the final seconds of the mobile device to read out the current number of seconds remaining.
Such as: the use of coffee, you can not miss watching the last seconds and the best extraction time.

Who is a good guy
That is shaking the phone to see who is good

BMW Fault Codes

Welcome to the BMW fault codes database. You will find the most complete list of BMW trouble codes available. The code definitions are a good starting point when determining the cause of the service light and will help you repair the problem. BMW Diagnostic Trouble Codes (DTC) for 1996+ models OBD 2, OBD II.

Audi Fault Codes

Welcome to the Audi fault codes database. You will find the most complete list of Audi trouble codes available. The code definitions are a good starting point when determining the cause of the service light and will help you repair the problem. Audi Diagnostic Trouble Codes (DTC) for 1996+ models OBD 2, OBD II.