Which One Should Be Used?
'At the end' and 'in the end' are both correct and can be used. 'At the end refers to a point in time where an event or action comes to an end. 'In the end' talks about a conclusion after a series of actions or events.
At the end
'At the end' talks about a certain point in time in which an action or event is finished. It is used after a single event. Note that 'of' always follows 'at the end.' Have a look:
He was held captive and
In the end
'In the end' has a similar meaning to 'finally.' We use it to refer to events that occurred after a series of other events. This is commonly used to talk about conclusions. Note that we never use 'in the end off.' Have a look:
He had many failures but