Low-cost and Low cost

Low-cost adjective - That you have the financial means for.

Low cost and low-cost are semantically related In some cases you can use "Low cost" instead an adjective phrase "Low-cost".

Low-cost and low cost are semantically related in moderate topic. Sometimes you can use "Low-cost" instead an adjective phrase "Low cost", if it concerns topics such as inexpensive, not high priced.