I think you’re looking for a mix of consumables and non-consumables here.
Your hammer and saw are non-consumables - that is, these are items that can be restored by the user when they delete and then re-install the app. They are useful tools that don’t have a shelf life.
You then have three consumables: a single nail, a pack of 10 nails, and a pack of 50 nails. Just explain to the user that if they delete the app, they’ll lose any nails they’ve bought. (If you define nails as non-consumables, every time the user runs out of nails in the game, all they’ll have to do is hit the ‘restore purchases’ button and the nails will reappear in their inventory.)
I think you’re looking for a mix of consumables and non-consumables here.
Your hammer and saw are non-consumables - that is, these are items that can be restored by the user when they delete and then re-install the app. They are useful tools that don’t have a shelf life.
You then have three consumables: a single nail, a pack of 10 nails, and a pack of 50 nails. Just explain to the user that if they delete the app, they’ll lose any nails they’ve bought. (If you define nails as non-consumables, every time the user runs out of nails in the game, all they’ll have to do is hit the ‘restore purchases’ button and the nails will reappear in their inventory.)