Repeater-START, the only open-source offline repeaters mapping app, is available on Github. A working Android phone port is also available.
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Repeaters in grid square DM04WD

This is a listing of repeaters in this grid square.
You can read more about Maidenhead locator/grid squares here from the ARRL website.
If you find one of your local repeaters to be missing, please add it to the list.

Mhz

Repeater Callsign	Frequency	Offset	Encode	Decode	Nearest City	Restriction (if any)
KB6THO	439.025Mhz	0Mhz	110.9	110.9	Pasadena, CA USA		Favorite