A new smartphone app will make it more convenient for commuters in Singapore to apply for concession card replacements.

Users can snap their photos using their camera phones and upload them using the free TransitLink Mobile Services app, which was launched officially on Wednesday. Payment can be made through eNets using credit or debit cards.

Currently, applications for concession cards - meant for students, full-time national servicemen and elderly people - can be made online, by snail mail, or at the six concession card replacement offices around the island.

The app combines this e-service function with a public transport guide that allows users to check the estimated arrival times of buses and travelling time on trains.

It was first released a month ago on the Android operating system but was recently available on the iOS as well.

"We are always on a look-out to increase the convenience of our customers using our services," said Ms Corrine Ng, TransitLink's vice-president of corporate and marketing communications.

"With the high penetration of smartphones in Singapore, we believe that it is only natural for us to tap modern technology to increase the reach and accessibility of our services."

Other e-services provided include submitting refund claims, enquiring about a lost concession card, and applying for a new senior citizen concession card.

Information on the nearest ticketing offices and add-value machines are also available.

Said university undergraduate Justin Lim, 21, who takes public buses every day: "It's really very easy to use, convenient and really helps a lot as it caters to all buses."