Difference between Quickly and Soon

QUICKLY vs SOON: ADJECTIVE

Just prior to something; shortly.
Without hesitation; promptly or speedily.
Before the usual or appointed time; early.
In the near future; shortly.
In the near future
With willingness; readily.
Immediately.
In a short time; shortly after any time specified or supposed.
Without the usual delay; before any time supposed; early.
Promptly; quickly; easily.
Readily; willingly; -- in this sense used with would, or some other word expressing will.
Immediately at or after another event.
As soon as; or, as soon as the time referred to arrives.
At some uncertain time in the future.
As soon as any; among the earliest; too soon.
Immediately, instantly
Within a short time; quickly
Early

Readily; willingly; gladly: in this sense generally accompanied by would or some other word expressing will, and often in the comparative sooner, ‘rather.’
Synonyms and
Betimes, etc. (see early), promptly, quickly.
Lief.
Early; speedy; quick.
Early; before the usual, proper, set, or expected time.
Early; before the time specified is much advanced: when the time, event, or the like has but just arrived: as, soon in the morning; soon at night (that is, early in the evening, or as soon as night sets in); soon at five o′ clock (that is, as soon as the hour of five arrives): an old locution still in use in the southern United States.
Quickly; speedily; easily.
In a short time; at an early date or an early moment; before long; shortly; presently: as, winter will soon be here; I hope to see you soon.
At once; forthwith; immediately.
(idiom) (no sooner … than) As soon as.
(idiom) (sooner or later) At some time; eventually.

Expediently, Readily, Immediately, Instantly, Fast, Slowly, Soon, Easily, Swiftly, Chop chop, Cursorily, Apace, Promptly, Speedily, Rapidly

Later, Once, Before, Slowly, Promptly, Someday, Speedily, Immediately, Swiftly, Imminently, Sometime, Quickly, Before long, Presently, Shortly

Before, Briskly, Sooner, Suddenly, Efficiently, Hastily, Readily, Immediately, Fast, Slowly, Soon, Swiftly, Cursorily, Apace, Rapidly

Forthwith, Pronto, Next, Later, Once, Before, Slowly, Someday, Immediately, Swiftly, Sometime, Quickly, Before long, Presently, Shortly

The cost of medical school adds up quickly.
Actually the blogging is spreading its wings quickly.
Quickly convert a Data URL to an image.
You will convert txt to html very quickly.
Your course is completed quickly and in person.
Hey man, how quickly was your application verified?
He quickly reviewed my application and I paid.
One reason is to quickly eliminate shoddy research.
Also, unless told otherwise, donors will assume funds collected quickly in the wake of a tragedy will be spent just as quickly.
Technology changes quickly and often requirements based on technology change just as quickly.

You should receive your first job alert soon.
Europe soon, although I would absolutely love to.
Soon afterward photographers from Canada and Australia followed.
European Jews, who believe rescue will come soon.
But everything will be back to normal soon.
How soon may I begin to notarize documents?
You know the money is coming very soon.
Biopsy or autopsy tissue: Collect autopsy specimens as soon as possible and biopsy specimens as soon after onset of symptoms as possible.
The setup of the custom list and workflow required for this functionality will be posted soon as soon as someone requests it.
This CD was soon to become their lasting momento as the band split soon after, and were promptly then played by Radio One!