If you are looking for a calculator, be it scientific, statistical, or simple public school level but the RPN and emulating HP/Casio interface makes whatever you found worthless, then this is what you look for.

Sleep Cycle is a simple time calculator that makes it easy to manage sleep cycles, so that you wake up well-rested.

The goal of the card game "Best Number" is to bet your own cards against the opponents in a set of rounds, for the largest amount of coins.

Quick Budget is the simplest way to manage any kind of budget list.

* Calculate tips and split bills quickly & easily with Tip Calculator!

* Calculate tip and split the bill with Tip Calculator - the ultimate tip calculator!

* This tip calculator not only calculates tip quickly and easily but also helps to split the bill between any number of people.

* Specify your own custom tip percent

* Enter a value on the tip calculator and see changes to the tip percentage, tip amount, total amount and

amount payable per person.

A very Smart Calculator for Smart People

All the calculations needed to maximize profit.

Simple and smart Tip Calculator.
Calculate tip easily. Also calculates tip shared between several people.

Simple tip calculator that allows you to split the bill by any number of people.

A handy tip calculator!

Unit Converter & Currency Rate is a simple but powerful tool. It will help you to convert everything you need in your every day life, featuring currency rates updated daily! Unit Converter & Currency Rate includes many units and if you want us to add more, feel free to email us! The output format can be easily adjusted according to your needs (scientific format, decimal places).

Free , simple and fast currency converter .
* Easy to use
* Quick 50 currency rates calculator
* Auto update exchange rate
* Offline mode
* Currency banknotes photos and info
* Random money facts
* Filter countries
* Perfect for travelling

Unsure of what Body Mass Index is? It is a reference index (invented by Belgian scientist Jacques Quetelet and adopted by the World Health Organization) based on your weight and height used to evaluate the risks associated with excess weight in adults.

Fast and easy calculations for your health and fitness

CalInverse is calculator with modular arithmetic and theory of numbers.
Functions include:
*Greatest common divisor (GCD) (Euclidean algorithm);
*Least common multiple (LCM);
*Bezout's lemma;
*Modular multiplicative inverse;
*Chinese theorem for a system of 2, 3, 4 equations.
The program does not require access to the internet.

ON RULER is a helpful measuring tool for quick measure of small object's length. It helps you to measure the dimension of objects conveniently and accurately with your phone at anytime and anywhere.

Time machine is timesheet application for simple time tracking. Ideal for freelancers, and everyone who needs to track time spent working on their projects, control their time, or just want simple stopwatch.

ON DIAMETER is the best diameter measuring tool on android. This measuring tool will help you to measures the diameter and area of any circular objects on the device's screen.

Ladytimer Ovulation and Period Calendar tracks and predicts menstrual cycle days, helping women to become pregnant or avoid pregnancy.

English, Deutsch, español, français, italiano, português, 日本語, 中文, русский

* Super easy to use
* Lots of calendar options: symptoms, moods, weight, etc
* Portable to any smartphone
* Text and voice notes
* Period history
* Community
* Share data with your doctor or partner
* LadyCloud automatic backup and sync
* Baby gender forecast

Play "Four In A Line" online with players all over the world or play offline with machine AI.