Difference between Frankly and Honestly

FRANKLY vs HONESTLY: ADVERB

In a frank manner; candidly.
In truth; honestly.
In a frank manner; freely.
In a frank, open or (too) honest manner.
In truth, to tell the truth.
(used as intensives reflecting the speaker's attitude) it is sincerely the case that

(used as intensives reflecting the speaker's attitude) it is sincerely the case that
Used as an intensive.
Honorably; becomingly; decently.
A circumlocution for to inherit; as, to come honestly by a feature, a mental trait, a peculiarity.
Frankly.
In an honest manner

In a frank or unreserved manner; without reserve or disguise; candidly: as, to confess one's faults frankly.
Freely; without hindrance or restraint; willingly.
Synonyms see frank, adjective

Clearly, Very, Simply, Downright, Totally, Truly, Actually, Quite, Genuinely, Admittedly, Utterly, Plainly, Really, Candidly, Honestly

Exactly, Definitely, Openly, Honesty, Truly, Certainly, Genuinely, Actually, Sincerely, Really, Honest, Truthfully, Aboveboard, Candidly, Frankly

Honest, Definitely, Indeed, Very, Simply, Downright, Totally, Truly, Actually, Quite, Genuinely, Admittedly, Utterly, Really, Honestly

Truth, Earnestly, Exactly, Definitely, Openly, Honesty, Truly, Certainly, Genuinely, Actually, Sincerely, Really, Honest, Aboveboard, Frankly

They kind of messed up the city, frankly.
Frankly speaking I have no idea about CFA.
Frankly, I have not reread the standard recently.
And frankly this is better for my boys.
Appendix, because frankly it may never be reviewed.
Yes and frankly I hate them for it.
Neko Atsume is, frankly, a perfect video game.
That is, frankly, very helpful to our committee.
Really, frankly, it was damned cheek of Poirot.
Borden, her and frankly frankly say that to me, for she is a mean goodfor nothing thing.