Table 3.

Characteristics of Engagement Metrics in Smoking Cessation Apps (N = 100)

mHealth Literacy Strategies	% Present in Apps (or otherwise stated)
Plain Language	M = 5.69 (SD = 1.54)
Paragraph Length	58
Meaningful Headings	66
Non-Technical Language	82
Sentence Length	89
Personal Pronouns	89
Present Tense	91
Active Voice	94
Usability	M = 2.79 (SD = .95)
Search/Browse Bar	0
Screen Control Options	2
Homepage Accessibility	28
Linear Navigation Path	38
Navigation Menu	56
Images for Learning	72
Color Scheme	83
Interactivity	M = 1.86 (SD = 1.27)
Online Community Integration	16
Email Integration	28
Social Media Integration	48
Audio/Visual Multimedia	35
Tailored Content	59
TTM Processes of Change	% Present in Apps (or otherwise stated)
Cognitive/Affective Processes	M = 2.79 (SD = 1.06)
Consciousness Raising	50
Dramatic Relief	74
Environmental Reevaluation	79
Self-Reevaluation	74
Behavioral Processes	M = 2.83 (SD = 1.24)
Self-Liberation	36
Counterconditioning	63
Helping Relationships	71
Reinforcement Management	34
Stimulus Control	79

Note. Range of strategies used for the following mHealth literacy dimensions: plain language (min = 0; max = 7); usability (min = 0; max = 7); interactivity (min = 0; max = 5). Range of TTM processes of change for each category: cognitive/affective processes (min = 0; max = 4); behavioral processes (min = 0; max = 5).