Mobile Apps - start.speedymarks.com

Recently I enhanced my overview page with all my mobile applications start.speedymarks.com. Now you can not only find links to all my mobile web and Apple App Store apps but to all Android, Palm and Windows Phone 7 apps as well:



In addition the apps can now be filtered by category.

piet.jonas.com updated

If you go to my personal home page piet.jonas.com you will find a new tool to browse all my mobile apps on the different platforms:



Have a look at the background which changes its color with the time of day.

New Project: Water Timer

Measure the time you take your shower (or to water the lawn) and calculate the amount of water used and how much you have to pay for it.

You can save a history of calculations locally on your phone and email them to yourself for backup and further processing.

water.speedymarks.com

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Water Timer - for iPhone and iPad

Measure the time you take your shower (or to water the lawn) and calculate the amount of water used and how much you have to pay for it.

You can save a history of calculations locally on your phone and email them to yourself for backup and further processing.

Pairs - for the iPhone and iPad

Train your memory and play a game of Pairs with the SpeedyMarks icons. It's free!

New Project: Pairs

Train your memory and play a game of Pairs with the SpeedyMarks icons.

How to play (in case you don't know):

• Tap one card
• Tap a second card
• If cards match, they are removed
• If cards don't match, they become hidden again
• Play until all cards are removed

pairs.speedymarks.com

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2 Player Games for the iPad

The 3 geo quiz apps for the iPad just got a new 2 player mode:

Country Quiz HD

State Quiz HD

Capital Quiz HD

So now you can test your own knowledge or play against someone else and see who knows more.

Weight Chart - for the iPhone and the iPad

Weight Chart helps to monitor your weight and waist circumference over time. Newer studies show that a waist to height ratio of over 0.5 increases the risk of cardiovascular diseases, a ratio over 0.6 significantly. It's a better measure than the well known body mass index (BMI) because it takes the distribution of fat into account more accurately.

New Project: Weight Chart

Weight Chart helps to monitor your weight and waist circumference over time. Newer studies show that a waist to height ratio of over 0.5 increases the risk of cardiovascular diseases, a ratio over 0.6 significantly. It's a better measure than the well known body mass index (BMI) because it takes the distribution of fat into account more accurately.

weightchart.speedymarks.com

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Thunderstorm - for the iPhone and the iPad

This application calculates the distance of a thunder storm by measuring the time between a lightning and the corresponding thunder.

New Project: Thunderstorm

This application calculates the distance of a thunder storm by measuring the time between a lightning and the corresponding thunder.

The speed of light is much faster than the speed of sound. By measuring the time between the lightning and corresponding thunder one can easily approach the distance by multiplying the duration with the speed of sound.

thunder.speedymarks.com

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My Position HD - for the iPad

Quickly see where and how high you are on earth. If you define a target you can see how far you still have to go and in which direction. It uses the a constant angle on a so called rhumb line or loxodrome, so it is not necessary to constantly adjust your bearing (as you would have to on the shortest path on a orthodrome)
This application is intended for a quick lookup without tracking your position in the background in order to save battery power. It works completely offline and can be safely used while roaming.