The Feather pension insurance has 2 fees:
Monthly fee of 1.50 Euro. This is deducted each month from the total amount in the pension plan
Yearly fee of 0.5%. This is based on the total amount of money in the pension plan and the corresponding piece is deducted each month.
This means that:
What you see is what you have. The amount you see in the account is what you have
No hidden fees. There are no further hidden fees on taking the money out, pausing the plan or cancelling the plan.