*Purpose: We previously conducted a pilot study demonstrating that patients who used the Donor App (DA) were 6.6 times more likely to generate a live donor (LD) inquiry than a control group. We sought to determine if DA had an effect on transplantation rates for these patients 5 years after receiving the App.

*Methods: We conducted a retrospective chart review of 53 patients who received DA during a 1-hour training session led by a clinician and 89 controls who did not use DA. Patients were followed since the earliest DA training session to their transplant date, death or last follow-up. We assessed the association between DA use and transplant using Cox regression, adjusting for candidate age/sex/ESRD diagnosis/race and treating DA as time-varying exposure.

*Results: Of 53 DA users, 26 were African American, 21 were Caucasian/other and 2 identified as other race. Mean (SD) age at time of intervention was 55 (46, 61) years and 55 (44, 61) years for controls. Of 142 patients, 4 received a LDKT and 63 received a DDKT (Table 2). After adjustment, DA recipients had twofold higher rates of LDKT (HR= _1.32.2 _3.8, p<0.01).

*Conclusions: Five years after the initial study, DA use was associated with substantially increased access to LDKT. Results suggest that mHealth initiatives like DA can improve access to transplantation for waitlist registrants.

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