I understand and consider it for future releases.
Thank you for clarifications.

This is how I would prefer it:

2017-04-15 21_53_42-Myibidder (Online) - maxrev_de.png

Many users add items in bulk, then they check what they want to snipe from that list.
Some just add for watching purposes, while others may add it as a backup in case if other snipes failed.
These are the most popular conditions, but there are many other situations where items is being added without setting up a snipe.

For Windows client there is a way to add snipe amounts quickly:
If you navigate to the "My Bid" cell and press "F2", you can edit your snipe in-place. Once you hit "Enter", it will be saved on the remote server.

I think its a little bit complicated to add an item and edit that new entry afterwards to select my bid amount. Maybe you think about adding a second field with the (optional) bid amount.

And I think its strange that the app asks me if it should activate the bid after I added one. I mean.. why should I add a bid without using it for sniping?!