Use "costless" in a sentence

1. It's not costless.

2. Abacuses is A Bright Costless Universal Statistical End-user Software.

3. A Contestable market is one for which there is free and costless entry and exit

4. When these bushed electric cells and forbids costless radical damage done by allergens and worked up and psychological Anxiousnesses

5. Synonyms for Buckshee include complimentary, free, gratis, on the house, unpaid, costless, gratuitous, cost-free, free of charge and for nothing