MeccaMeter calculates the iPhone position anywhere in the world to the nearest ten metres. Primarily it uses GPS but if this fails it resorts to cellular and finally Wi-Fi. It then uses an algorithm to calculate the shortest great circle distance from the device position to Kaaba. It then calculates the heading based on the initial track of the great circle route.
The user is presented with a compass with a needle overlay. The green end of the arrow point towards Mecca. The user then rotates the device until the device points in the same direction as the heading to Mecca. When established on the heading the device vibrates.
The heading is based on the initial track of the great circle route from the device position to Mecca. The great circle route is the shortest distance across the surface of the earth between two points. This can be up to 90 degrees different from Rhumb lines which are a line of constant track between points.
Aircraft turbulence is categorised as either light, moderate or severe. Air traffic controllers routinely ask pilots to report the level of turbulence that their aircraft is experiencing. These reports are called ride reports. Ride reports are used by other aircraft to decide which route and altitude to take to avoid the turbulence. These reports are necessary for both passenger comfort and safety. Some operators require their pilots to report flight in severe turbulence as an aircraft engineering inspection may be required. Pilot assessment of turbulence levels are often subjective and inaccurate.
The International Civil Aviation Organisation (ICAO) category definitions for turbulence are:
1.1g < Light < 1.3g
1.3g < Moderate < 1.5g
1.5g < Severe
RideReporter continually measures the acceleration that the device is experiencing. The device can be used in any oriention as it takes input from all three accelerometers on the iPhone. The instananeous g reading is displayed on a scale with a needle. RideReporter continually records the highest g reading within the last five seconds and gives a text readout overlay based on the reading.
Have you ever found yourself lost in town and looking to find out where you are? Have you ever found yourself at a bar or restaurant and need to know the address of the venue so you can order a taxi? If you have then this this the app for you. SpiPhone will calculate all addresses within 20 Meters and display the addresses in a table.
iSpi is the app that identifies major landmarks in the top tourist destination cities in the world. Find a viewpoint with an unobstructed view of the city you are in. It works best in open areas so avoid using in enclosed spaces. Open iSpi and select the city. The app will then access the camera on the device. At the centre of the screen is a viewfinder rectangle. Pan the device horizontally and when it recognises landmarks in the viewfinder area an information label will appear identifying the landmark. iSpi currently works in the following cities:
Buenos Aires, Argentina
Cape Town, South Africa
Chiang Mai, Thailand
Chicago, United States of America
Dubai, United Arab Emirates
Hong Kong, China
Kuala Lumpur, Malaysia
London, United Kingdom
Los Angeles, United States of America
New York, United States of America
Prague, Czech Republic
Queenstown, New Zealand
Rio de Janeiro, Brazil
Riyadh, Saudi Arabia
Saint Petersburg, Russia
San Francisco, United States of America
Seoul, South Korea
Siem Reap, Cambodia
Singapore, Republic of Singapore