You are absolutely right.
Ukrainian adjectives have two degrees of comparison: comparative and superlative. Every degree has as well two forms: simple and hard.
First of all I would like to note that for beginners or even more
advanced Ukrainian speakers the "simple" form is actually more
difficult to understand and learn than the "hard" form. So feel free
to use the easiest form because they both are interchangeable, though
we prefer to use "hard" form with more abstract or relative
adjectives. Hard form is created by adding words більш (more), менш
(less) to the adjectives:
цікавий (interesting) — більш цікавий (more interesting), менш цікавий
розвинений (advanced) — більш розвинений (more advanced), менш
розвинений (less advanced)
The adjective does not change at all, all you need is to add a
specific word to it.
Pay attention that unlike English where words "more" or "less" are
used with adjectives with more than three syllables, Ukrainian
"більш", "менш" are used with any adjectives no matter how many
syllables they have.
As you can see this form of making comparative adjective is much
simplier than the previous one.