Table 2.

Number of participants who have used any type of smoking cessation apps in the past.

		Made quitting attempt
Type of smoking cessation app	Used by number of participantsa	Yes n (%)	No n (%)	χ2 (P)
Smoking counters (eg, count smoke free days or number of smoked cigarattes)	174	143 (82.2)	31 (17.8)	7.9 (.005)
Motivation (provide motivational messages)	113	86 (76.1)	27 (23.9)	0.0 (.99)
Text information (provide text info about smoking cessation)	76	59 (77)	17 (22)	0.1 (.75)
Combination of different types	68	46 (67)	22 (32)	2.4 (.12)
Hypnosis	51	42 (82)	9 (17)	1.0 (.29)

^aSome participants have used more than one app.