The difference between Improve and Revamp

When used as verbs, improve means to make (something) better, whereas revamp means to renovate, revise, improve or renew.

Revamp is also noun with the meaning: a renovation, revision or improvement.

check bellow for the other definitions of Improve and Revamp

Improve as a verb (transitive):

To make (something) better; to increase the value or productivity (of something).

Examples:

"Painting the woodwork will improve this house."

"Buying more servers would improve performance."
Improve as a verb (intransitive):

To become better.

Examples:

"I have improved since taking the tablets."

"The error messages have improved since the last version, when they were incomprehensible."
Improve as a verb (obsolete):

To disprove or make void; to refute.
Improve as a verb (obsolete):

To disapprove of; to find fault with; to reprove; to censure.

Examples:

"to improve negligence"

"rfquotek Chapman"
Improve as a verb (dated):

To use or employ to good purpose; to turn to profitable account.

Examples:

"to improve one's time;&emsp; to improve his means"

Revamp as a verb (transitive):

To renovate, revise, improve or renew; to patch.

Examples:

"They plan to revamp the historical theater in the old downtown."