Piet Jonas

Wednesday, July 5, 2017

Tip Calc - New App for iOS and Android

This app calculates helps you calculating the right tip. Enter the net amount, tap on a percentage and you are done. You can modify the tip and the total sum with the tap of a finger create an even sum for either tip or total.

Available for:

Free version for iPhone and iPad

Android phones and tablets

Free version for Android phones and tablets

More features:

default percentage
currency symbol

http://tipcalc.speedymarks.com

Friday, July 8, 2016

Humidity - New App for iOS and Android

This application shows the current relative outdoor humidity, measured by a nearby weather station for which it uses your current location.
The background color changes with the humidity value.

Available for:

iPhone, iPad and Apple Watch

Android phones and tablets

Free version for Android phones and tablets

Features:

The humidity is automatically updated
The location is automatically updated when you move
Wipe the steamed up screen to see through

The Apple Watch App

http://humidity.speedymarks.com

Wednesday, June 15, 2016

Altimeter - New App for iOS, Android and the watches

This altimeter either uses GPS or the built in barometer (if available) to determine your current elevation on earth. While GPS provides the absolute altitude as long as you see the sky it is not very accurate. With the help of the barometer we can calculate the altitude indoors and outdoors with a much higher accuracy. But we need a reference altitude to calibrate the barometer altitude. This calibration will degrade over time as the air pressure changes with the weather.

Available for:

iPhone, iPad and Apple Watch

Android phones, tablets and Wear Watches

Free version for Android phones and tablets

Features:

GPS and barometer based altitude
set a base altitude as starting point and get the altitude difference (e.g for hiking or biking)
calibrate the barometer altitude (connect the current air pressure to your current altitude)
calibrate with the help of GPS, the standard sea level air pressure or to any altitude you want
time difference to the last calibration
warning when it is time to calibrate
switch between metric and imperial units

The Apple Watch App

By running Altimeter on your Apple Watch you have the current altitude always on hand without taking out your phone. You can choose between GPS and barometer altitude. For a quick direction you can use the glance view.

The Wear App

By running Altimeter on your Android Wear watch you have the current altitude always on hand without taking out your phone. You can choose between GPS and barometer altitude.

By setting Altimeter as your watchface you have the altitude always on hand when you activate your watch (without loosing the ability to read the time). Just flick your wrist.

http://altimeter.speedymarks.com

Thursday, June 9, 2016

The Euro 2016 is about to start..

.. and here is the app to stay in touch:

See the schedule and countdown to upcoming and current soccer games of the 2016 UEFA Football Eurocup in France.

Features:

Share event dates
Add events to your calendar
Switch between modern light and dark traditional design
Runs on the Apple Watch:

http://worldcup.speedymarks.com

Monday, March 21, 2016

Roll a dice on the watch

The new version of my Letter Dice app runs now on the Apple Watch as well.

The new app has more predefined dice (A-Z, 0-9, ...) and supports the iPad multitasking (split view,...) of iOS9.

http://letterdice.speedymarks.com

Sunday, March 20, 2016

Cook your easter eggs with Boiling

It is widely known, that the boiling temperature of water isn't constant. It depends on the air pressure. Only for the mean pressure at sea level it will be 100°C (212°F). Therefore with rising altitude the boiling temperature will drop quickly. On Mount Everest it is 68°C (154 °F) only. Why bother? The time to cook eggs depends on the temperature, which means above sea level it takes longer to cook them to perfection.
So far you could have used my Boiling app to calculate the boiling temperature for any altitude. But many modern smartphones come with a internal pressure sensor (e.g. the iPhone 6, the Nexus 4). So with the new version of Boiling you can calculate the water boiling temperature for your current air pressure which not only depends on your current altitude but on the current weather as well.