A smartphone (240, 250, 260; 336, 342, 345, 347, 351-1, 351-2, 357, 358, 360) comprising: a transceiver; a processor in communication with the transceiver, the processor being configured to: determine an association with a vehicle; in response to determining that the smartphone (240, 250, 260; 336, 342, 345, 347, 351-1, 351-2, 357, 358, 360) is associated with the vehicle: analyze at least one aspect related to a current operation or a current environment of the vehicle; and in response to the analysis, modify at least one aspect of operation of an app (339, 343, 346, 348, 354-356, 359), wherein the app (339, 343, 346, 348, 354-356, 359) is configured for execution in the smartphone (240, 250, 260; 336, 342, 345, 347, 351-1, 351-2, 357, 358, 360) or in a head unit (200, 270, 280) of the vehicle, wherein the processor is configured to analyze at least one aspect related to the current operation or the current environment of the vehicle by: weighting an alert related to the current operation or the current environment of the vehicle and determining a vehicle safe indicator based on the weighted alert, the vehicle safe indicator indicative of a degree of vehicle safety; accessing a look-up table, the look-up table correlating the determined vehicle safe indicators with allowed or disallowed functionalities or characteristics; and determining, based on the accessed look-up table and the determined vehicle safe indicator, a disallowed functionality or characteristic, wherein the processor is configured to, in response to the analysis, modify at least one aspect of operation of the app (339, 343, 346, 348, 354-356, 359) such that the operation of the app (339, 343, 346, 348, 354-356, 359) does not include the disallowed functionality or characteristic. a transceiver; a processor in communication with the transceiver, the processor being configured to: determine an association with a vehicle; in response to determining that the smartphone (240, 250, 260; 336, 342, 345, 347, 351-1, 351-2, 357, 358, 360) is associated with the vehicle: analyze at least one aspect related to a current operation or a current environment of the vehicle; and in response to the analysis, modify at least one aspect of operation of an app (339, 343, 346, 348, 354-356, 359), determine an association with a vehicle; in response to determining that the smartphone (240, 250, 260; 336, 342, 345, 347, 351-1, 351-2, 357, 358, 360) is associated with the vehicle: analyze at least one aspect related to a current operation or a current environment of the vehicle; and in response to the analysis, modify at least one aspect of operation of an app (339, 343, 346, 348, 354-356, 359), analyze at least one aspect related to a current operation or a current environment of the vehicle; and in response to the analysis, modify at least one aspect of operation of an app (339, 343, 346, 348, 354-356, 359), wherein the app (339, 343, 346, 348, 354-356, 359) is configured for execution in the smartphone (240, 250, 260; 336, 342, 345, 347, 351-1, 351-2, 357, 358, 360) or in a head unit (200, 270, 280) of the vehicle, wherein the processor is configured to analyze at least one aspect related to the current operation or the current environment of the vehicle by: weighting an alert related to the current operation or the current environment of the vehicle and determining a vehicle safe indicator based on the weighted alert, the vehicle safe indicator indicative of a degree of vehicle safety; accessing a look-up table, the look-up table correlating the determined vehicle safe indicators with allowed or disallowed functionalities or characteristics; and determining, based on the accessed look-up table and the determined vehicle safe indicator, a disallowed functionality or characteristic, weighting an alert related to the current operation or the current environment of the vehicle and determining a vehicle safe indicator based on the weighted alert, the vehicle safe indicator indicative of a degree of vehicle safety; accessing a look-up table, the look-up table correlating the determined vehicle safe indicators with allowed or disallowed functionalities or characteristics; and determining, based on the accessed look-up table and the determined vehicle safe indicator, a disallowed functionality or characteristic, wherein the processor is configured to, in response to the analysis, modify at least one aspect of operation of the app (339, 343, 346, 348, 354-356, 359) such that the operation of the app (339, 343, 346, 348, 354-356, 359) does not include the disallowed functionality or characteristic.