trademarks are within a field of business, so two different trademarks could use the same name as long as they're in distinct fields with little chance of confu

trademarks are within a field of business, so two different trademarks could use the same name as long as they're in distinct fields with little chance of confusion I was thinking the 'field of business' would be mobile app development but my mobile app uses a different name so theoretically if the above statement is true I should be OK. Thanks for the feedback!