Your first month is free, with no card needed. This is what it costs after that.

Each parent has their own subscription. Your access never depends on your co-parent.
Manon is priced in your own currency.
Yes — each parent has their own subscription. That is deliberate: your access never depends on your co-parent. Your first month is free.
Now. Your first month is free, and nothing starts charging without you choosing it.
You choose a plan to carry on. If you do not, you can still open Manon, read everything and export your record. Sending, adding or changing anything needs a subscription.
At any time. Your records remain yours and the export stays available, because a record you can lose by cancelling is not a record.
Your own. Manon detects your region and shows the local price, formatted the way your country writes it.