Brisbane City Council data shows more than one in four paid parking spaces now need a driver to use a mobile app to pay.
Advocates have warned the push for app-only parking risks widening the digital divide.
A spokesperson for Brisbane City Council said there are "no plans to remove all parking meters in Brisbane".
The latest council data shows of the roughly 9,000 metered parking spaces within Brisbane City Council, 2,483 are in pay by app only zones.
Elissa Ferguson lives near the Wesley Hospital in the inner-north suburb of Auchenflower, where about 60 per cent of paid parking spots are app-only.
Ms Ferguson said she "often" comes across visitors to the hospital confused by how to pay for parking.
Ms Ferguson said together they worked out that the woman had before downloaded the app but could not access it because she had forgotten her password.
Ms Ferguson said eventually she had to point the woman in the direction of a parking meter she knew was located at the top of a nearby street.
In Newstead, retiree Margaret McCormack was running late for an appointment when she found a parking spot.
Seal Chong Wah is the Greens Councillor for Paddington Ward, which includes suburbs with high numbers of pay by app parking.
CEO of the Council on the Ageing Australia, Patricia Sparrow, said she has seen a move towards digital only practises "right across the board".
Ms McCormack said she used to have paying for parking "down to a fine art" when regularly visiting the Mater Hospital in Brisbane.