Missing one word form 12 word seed phrase(correct order)

Hello

I have a problem, got a new iphone and the phantom app transferred over but only in watch only mode

I wrote down my 12 word seed phrase but missed one word. What an idiot

Its in the correct order and I think I missed the last word

Is there anything I can do other than try all 2048 different words.

Found some different things using python or btc recover but all so complicated. Do they work… please help?

Only £500 on there so not the end of the world but really annoying.