Pricing Options on Bulksender charges a flat fee per transaction, each network has a different ceiling on the amount of tokens which can be sent in a single transaction. A full list of each network fee is listed below.

Ethereum0.035 ETHper 200 addresses
Binance0.02 BNBper 30 addresses
Avalanche1 Avaxper 200 addresses
Fantom40 FTMper 200 addresses
Polygon20 Maticper 200 addresses
Tron100 Tronper 100 addresses