calculator

Some people choose lottery numbers randomly, or they play numbers that are meaningful to them, like loved ones' birthdays. Other people are more methodical and calculating (no pun intended), and for those people, there are programs like PowerLotto5. This software allows users to perform a variety of different analyses on previous winning lottery numbers, ostensibly helping to predict the numbers that are most likely to win in the future.

PowerLotto5 is definitely geared toward people who have at least some familiarity with statistics and who like to geek out on numbers. There is a Help file with a glossary, but … Read more

PCalc is a high-powered scientific calculator that goes beyond the features found in the built-in Mac OS scientific calculator. Scientists, mathematicians, or just serious students will find quite a few bonus features comparable to those found in standalone programmable scientific calculators which PCalc's interface mimics--including quick one-key conversions, constants organized by field (from astronomical to physicochemical), an optional RPN mode that matches modern calculators, and decimal, hexadecimal, octal, and binary modes. You can also write your own functions and conversions, maintain multiple calculators (all with different states), and use PCalc's slightly lower-powered Dashboard widget for quick calculations. PCalc … Read more

Numbers for iPad works well for creating spreadsheets and organizing data while away from your desktop, with a multitude of useful tools and a smart interface design to make your spreadsheet work easier. The app comes with a Getting Started file that walks you through everything from basic spreadsheet use to more complicated features using an intuitive tabbed interface. As you learn the various features, the Getting Started file directs you to try them on your own as you go--an excellent way to learn the ins and outs of Numbers.

The touch interface makes interacting with spreadsheets easy. Add rows … Read more

Options for computer-based personal finance management have proliferated in recent years, both in terms of software and Web-based services. Personal Financial Statement Software is, as the name implies, another entry into this field, and we can't say we're terribly impressed with it. It looks nice and works well enough, but its features simply don't compare with many of the other options that are available.

The program's interface is well-designed and attractive, and it's quite easy to use. A wizard-style dialog guides users through the process of entering their assets and liabilities, and users are able … Read more

Biorhythms blend physiological science with alternative philosophies, some new, other ancient, to yield insights into one's personal development, relationships, and even future. Adherents believe that studying biorhythms can help you prepare for bad days and be ready for your best days. BinaryMark's BioRhythms Calculator 2010 is an interesting piece of software that can help you monitor, track, and analyze your biorhythms and use the results to improve your life. It can apply biorhythm readings for you or your friends and family to 15 built-in rhythms ranging from the traditional Chinese I Ching patterns to Primary, Secondary, Intuitive, and … Read more

In the grand tradition of the Ginsu Knife, App Genie is 27, 27, 27 apps in one! Even if you find only a handful of them useful, you're definitely getting your 99 cents' worth.

App Genie's one-screen interface displays 20 attractive icons, which unfortunately are arranged randomly rather than alphabetically. Thus, finding what you're after (like, say, the tip calculator) is more difficult than it should be.

A few of these apps (like Tool Case) have various sub-apps, bringing the total number of tools to 26. After running App Genie a couple times, you'll see a … Read more

Time Zone Calculator is an extremely basic program that allows you to calculate the time difference between two global locations. There's not much to it, but it performs the task that it's designed for.

The program's interface is extremely basic, consisting of a single screen. There are two drop-down menus from which you select your base location and remote location; there's a long list of locations, which is organized alphabetically. The program allows you to view the time difference between the two locations in three ways; the difference between the current times, the difference when the … Read more

Soccer betting games like Toto, Lotofoot, and TotoCalcio are played by millions around the world, but they're particularly popular in countries where soccer mania rules--which is most of the world outside of the US, where "football" means shoulder pads, not penalty kicks. TotoCalculator 2 is an easy-to-use program that improves your odds of winning association football betting games.

TotoCalculator's main interface is a plain but familiar Windows dialog box. Pop-up options dialogs handle truly copious settings. The input window features a color-coded spreadsheet format listing matches between major English and European professional soccer teams, as well … Read more

If you're too deep into your food coma to adequately calculate how much each party owes for the bill, tap open Tip Calculator. The free app, like others in its class, is simple, but rapidly breaks down the total each diner owes. Thankfully, this tip calculator requires that you only type in the number of people and the total bill; then select a preset tip percentage or add your own. Tip Calculator reads out the tip amount, the total bill, and how much each diner owes. Having the app remember your usual tip setting between sessions would improve it, … Read more