Inclusion Criteria:

        Subjects who meet all of the following criteria are eligible to participate in this study

          -  Histologically-verified, previously untreated low-risk mixed superficial and nodular
             BCC or nodular BCCs < 1 cm in diameter on scalp, extremities, or trunk.

          -  ≥ 18 years of age

          -  Owner of a smartphone (Android or iPhone). Patients without a working smartphone will
             not be considered eligible for this study.

          -  Being able to download application on their phone

          -  Being able to take pictures of their treated BCC (with or without assistance)

          -  Female subjects of childbearing potential must be confirmed not pregnant by a negative
             urine pregnancy test prior to trial treatment. (Female subjects are considered of
             childbearing potential unless they have been hysterectomized or have undergone tubal
             ligation or have been post-menopausal for at least one year prior to the first visit)

          -  Legally competent, able to give verbal and written informed consent

          -  Subject in good general health and willing to participate comply with protocol
             requirements.

          -  Superficial and nodular BCC

        Exclusion Criteria:

        Subjects meeting any one of the following criteria are not eligible to participate in this
        study

          -  High-risk BCC (H area, >1 cm in M area, or >2 cm in L area)

          -  BCC subtype morpheaform

          -  Diagnosed with gorlin syndrome

          -  Receiving immunosuppressive medication

          -  Subjects with a known allergy to ALA

          -  Individuals with other interfering skin diseases in the area of treatment

          -  Subjects with a tattoo in the treatment area which may interfere with or confound the
             evaluation of the study

          -  Subjects with a history of keloids which is deemed clinically relevant in the opinion
             of the investigator

          -  Lactating or pregnant women

          -  Patient who are taking prescription pain medications or can not stop OTC pain
             medications.