The most profitable plan for Turkey is the 20 GB plan at $19.34, offering a great balance of cost and data for longer stays. The 1 GB plan costs $3.54 for 7 days, ideal for short visits. For moderate usage, the 3 GB plan at $5.38 for 30 days is a solid choice. The 50 GB plan at $47.07 is perfect for heavy data users.