Table 1.

Participant inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
Android or iPhone smartphone or tablet with an active data plan and/or connected to a home WiFi network	History of urinary incontinence, acute urinary retention, recurrent urinary tract infections, nephrolithiasis, obstructive kidney disease, urethral stent
Age ≥65 years	Active cancer treatment or medical condition that would limit the patient's life expectancy to <6 months
Diagnosis code for BPH or other micturition problem based on ICD-10 (N40.1 or R39198)	Dementia, bipolar disorder, schizophrenia, active suicidality, active substance use disorder
Taking tamsulosin 0.4 to 0.8 mg daily for ≥12 months	Current participation in another smartphone app-based clinical study
LURN 10-Item Symptom Index (SI-10) ≤ 10 (none/mild to moderate symptoms)	Planning to relocate from study area within 6 months
Downloaded an app from the Google Play or App Store within the past year	Impaired vision that limits the use of smartphone apps
Ability to speak and read English	Unwilling to temporarily stop tamsulosin

BPH, benign prostatic hyperplasia; ICD, International Statistical Classification of Disease and Related Health Problems; LURN, Lower Urinary Tract Dysfunction Research Network.