The use by taxi drivers of several different apps at one time points to a shortage of total taxis in the marketplace.
That is according to Kieran Harte, General Manager of Uber in Ireland.
He was speaking as the company launched its Uber Reserve feature, where users can schedule a trip and pick-up time up to 30 days in advance.
It is currently available for Uber Black trips in Dublin.
Mr Harte told Newstalk Technology Correspondent Jess Kelly for Breakfast Business that drivers want to get the most trips.
"We certainly are seeing an increase of drivers using the app," he said.
"That's certainly happening in Dublin, and also in Limerick, Cork and Galway where we've recently launched.
"What we see is that drivers are indeed using multiple apps to give them the best opportunities of receiving the best trips that suit them.
"What we are seeing, rather than just the apps competing for drivers attention, it really does point to there is a shortage of total taxis in the marketplace.
"That's why it's harder to get a taxi on any of the apps you might be using".
'Broadening the eligibility'
Mr Harte said he believes there is a path forward.
"We're really keen to work with the Government and the NTA (National Transport Authority) to help address this problem," he said.
"The first thing we need to do is just encourage more drivers into the industry.
"We need to do that by broadening the eligibility of the vehicles that they can use to drive in the industry.
"We think that we need to bring in proportionate testing for drivers, so they don't need to study for up to six weeks to memorise all streets and local amenities in a region before they can get a licence to drive".
Mr Harte said this is something they are hopeful for.
"It is within the NTA's remit to broaden that vehicle criteria - so start allowing more vehicles to become hackneys and taxis.
"That will certainly help," he added.
