identify this tree

[naammanow]

I have this tree in my garden. About 6 meters tall. The leaves upper side are green and the bottom side is brown. It produces some kind of brown "apples" rather sweet. Anybody knows the name of it? I thought bit was called "appen tree" in the Thai language. I attach a picture. Thanks, By the way, it is not doing very well, leaves are not as big as they should be and it is not producing many new leaves, branches, etc. Ideas?

[Jotham79]

The fruit color is too dark, but they look like "wood apples" Ka-than. Could you cut one open?

[pigeonjake]

kra dook,

are they yellow first when old like this they have fallen down, cant eat,

but the wood of the tree is very very hard, and good for building

jake