Intangible assets:

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets:

5. Intangible assets:

June 30, 2021	Cost		Accumulated depreciation		Net book Value
Ad Tech technology	$	1,877,415	$	876,127	$	1,001,288
Kidoz OS technology		31,006		24,116		6,890
Customer relationship		1,362,035		397,260		964,775
	$	3,270,456	$	1,297,503	$	1,972,953

December 31, 2020	Cost		Accumulated amortization		Net book Value
Ad Tech technology	$	1,877,415	$	688,386	$	1,189,029
Kidoz OS technology		31,006		18,948		12,058
Customer relationship		1,362,035		312,133		1,049,902
	$	3,270,456	$	1,019,467	$	2,250,989

Amortization expense was $139,018 (June 30, 2020 - $139,018) for the quarter ended June 30, 2021.