I was introduced by a friend about this apps that is available now in Malaysia. It is called MyTeksi. It is a very simple app to use and the function of this app is, well, to book a taxi.
It uses GPS location from your mobile/smart phone/device and from there will locate any nearby taxi. Or, you can enter a specific address. These locations can be saved for future reference and as favorites/bookmark. This apps allows you to make future bookings or immediate response.
After you keyed in your desired destination, the apps will 'contact' the available taxi and once it gets a response from any of them, it will send you a confirmation notice.
In this confirmation notice, you will get an estimated fare, taxi's plate number, driver's name and contact number and a picture of the driver too.
I had a trip recently and needed a taxi to fetch me at 5.30am to the airport. So, i tried booking one from MyTeksi two days before my departure date and it took me less than 5 mins to complete the whole transaction with a confirmation notice given almost immediately.
When the day arrived, i was, honestly, anxious and afraid that the taxi will not arrive. I even told myself that i should have not use the apps for work travel. But i kept my fingers crossed and thankfully the taxi arrived on time. I must say i was very impressed!
The taxi was new or looked like new or very well maintained and i felt confident that i would reach the airport safely. (Yes, i had experiences where the taxi was about to fail halfway through to the airport)
A 5.30am, i don't really feel like talking but the taxi driver was friendly and asked about the apps. I gave my positive feedback and i think he was quite happy with it too. Upon arriving at the airport, the meter showed almost the same estimated fare as per the confirmation notice, which was good. Since i booked a service before 6.00am, there was a midnight surcharge. This is something MyTeksi could consider to add into their apps for any potential surcharges.
You may want to follow them on twitter for more updates @MyTeksi