Apple and Google have developed a friendly rivalry over the past few years, but things are quickly heating up as Apple prepares for its Worldwide Developer's Conference on June 11 where the company is expected to debut its iOS Maps app.

The two tech giants once played nice, when Apple integrated the Google Maps app in its iPhone, iPad and iPod touch. But recently, Apple has been phasing Google Maps out -- likely in anticipation of the debut of its rumored maps app.

Apple-centric blog 9to5Mac reported the rumors of Apple's expected switch to its own navigation system earlier this month, citing trusted sources. The Apple app is expected to feature 3D similar to the widely used Google Street View.

However, Google has some own news of its own; the company will reveal what's in store for the next dimension of Google Maps later this week on June 6.

Apple's move away from Google has been a long time coming. Apple first began running the Google Maps software on iOS in 2007, but began purchasing mapping and navigation companies in 2009, starting with Placebase. In 2010, Apple bought mapping company Poly9 and, most recently, it acquired 3D mapping company C3 Technologies.

Check out the video above for a quick recap of the Apple-Google maps controversy.

Related on HuffPost:

If you're partial to Google Maps, check out the gallery below to see some of the craziest sightings.
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  • 'Atlantis' Underwater City, Atlantic Ocean

    <a href="http://www.huffingtonpost.com/social/Jenius"></a><a href="http://www.huffingtonpost.com/social/Jenius">Jenius</a>:<br />

  • Italy's Big Pink Bunny

    View it at <a href="http://maps.google.com/?ie=UTF8&t=k&om=1&ll=44.244273,7.769737&spn=0.002206,0.004227" target="_hplink">Google Maps</a>. (Via <a href="http://www.pcworld.com/article/134186/in_pictures_the_strangest_sights_in_google_earth.html" target="_hplink">PCWorld</a>)

  • Mystery Figure

    Via <a href="http://www.youtube.com/watch?v=Wr0qiivJZgI&feature=player_embedded" target="_hplink">YouTube</a>.

  • Blue Tree, Australia

    View it at <a href="http://googlesightseeing.com/maps?p=2005&c=&t=k&hl=en&ll=-34.073198,150.75777&z=19" target="_hplink">Google Sightseeing</a>.

  • Bottomless Pit, Libya

    Via <a href="http://www.techeblog.com/elephant/photo.phtml?post_key=160547&photo_key=35314" target="_hplink">TechEBlog</a>.

  • Iraq's Mysterious Red Lake

    View it at <a href="http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=33+23%2746.08%22+N+44+29%2717.03%22E&sll=33.550551,-44.483643&sspn=4.046476,9.799805&ie=UTF8&ll=33.396999,44.488063&spn=0.007918,0.01914&t=h&z=16&iwloc=addr" target="_hplink">Google Maps</a>. (Via <a href="http://www.time.com/time/specials/packages/article/0,28804,1881770_1881787_1881782,00.html" target="_hplink"><i>TIME</i></a>)

  • Comet

    Via <a href="http://www.techeblog.com/elephant/photo.phtml?post_key=160547&photo_key=35336" target="_hplink">TechEBlog</a>.

  • 'UFO'

    Via <a href="http://www.techeblog.com/elephant/photo.phtml?post_key=160547&photo_key=35315" target="_hplink">TechEBlog</a>.

  • 'The Badlands Guardian,' Alberta, Canada

    View it at <a href="http://maps.google.com/maps?f=q&source=s_q&hl=en&geocode=&q=50+00%2737.76%22+N+110+07%2700.86%22W&sll=33.225406,-111.595216&sspn=0.003967,0.00957&ie=UTF8&ll=50.010952,-110.11513&spn=0.006095,0.01914&t=h&z=16" target="_hplink">Google Maps</a>. (Via <a href="http://www.canada.com/globaltv/edmonton/story.html?id=977b4fcb-81ad-4c44-bbfa-baaa800c6dc5&k=30095." target="_hplink">canada.com</a>)

  • The Firefox, Oregon

    View it at <a href="http://maps.google.com/?ie=UTF8&om=1&z=16&ll=45.123785,-123.113962&spn=0.012112,0.024097&t=h" target="_hplink">Google Maps</a>.

  • KFC Mapversiting, Nevada

    Read more about this advertising strategy <a href="http://www.foxnews.com/story/0,2933,229308,00.html" target="_hplink">here</a>. View the real thing at <a href="http://maps.google.com/maps?ll=37.646,-115.7507&spn=0.01,0.01&t=p&q=37.646,-115.7507" target="_hplink">Google Maps</a>.

  • Capsized Boat, Iraq

    View it at <a href="http://maps.google.com/maps?ll=30.541634,47.825445&z=16&hl=en&t=h" target="_hplink">Google Maps</a>.

  • Triple Rainbow, South Carolina

    Via <a href="http://www.rodsbot.com/google-earth-3665.htm" target="_hplink">RodsBot.com</a>.

  • Desert 'Crop Circle,' Nevada

    View it at <a href="http://maps.google.com/maps?ll=37.401437,-116.86773&z=15&hl=en&t=h" target="_hplink">Google Maps</a>. (Via <a href="http://www.pcworld.com/article/134186/in_pictures_the_strangest_sights_in_google_earth.html" target="_hplink">PCWorld</a>)

  • 'Eat Pecans,' New Mexico

    View it at <a href="http://googlesightseeing.com/maps?p=585&c=&ll=32.241354,-106.707501&spn=0.006405,0.009673&t=k&z=0&hl=en" target="_hplink">Google Sightseeing</a>.

  • Crop Circle

    Via <a href="http://www.techeblog.com/elephant/photo.phtml?post_key=160547&photo_key=35292" target="_hplink">TechEBlog</a>.

  • Truck Accident, North Dakota

    Via <a href="http://googlesightseeing.com/2007/03/truck-crash/" target="_hplink">Google Sightseeing</a>.

  • Expletive

    Via <em><a href="http://www.theregister.co.uk/2006/02/10/giant-profanity/" target="_hplink">The Register</a></em>.

  • Concentric Shapes

    Via <a href="http://www.youtube.com/watch?v=Wr0qiivJZgI&feature=player_embedded" target="_hplink">YouTube</a>.

  • Pac Man

    Via <a href="http://www.gearthblog.com/blog/archives/2006/11/crop_circles_in_goog.html" target="_hplink">Google Earth Blog</a>.

  • Jesus Loves You, Idaho

    View it at <a href="http://maps.google.com/maps?f=q&hl=en&q=43%C2%B038%2743.00%22N+115%C2%B059%2733.50%22W&ie=UTF8&z=18&ll=43.645268,-115.992622&spn=0.002756,0.007178&t=k&om=1" target="_hplink">Google Maps</a>. (Via <a href="http://www.dvhardware.net/article14647.html" target="_hplink">DarkVision Hardware</a>)

  • World Peace, Ontario, Canada

    View it at <a href="http://www.rodsbot.com/google-earth-3660.htm" target="_hplink">RodsBot.com</a>.

  • Dino Maze, England

    View it at <a href="http://maps.google.com/maps?hl=en&t=k&ll=52.55885,-1.057756&z=17" target="_hplink">Google Maps</a>.

  • Swastika Building

    View it at <a href="http://maps.google.com/maps?f=q&hl=en&q=Coronado+CA&t=k&ll=32.676138,-117.157763&spn=0.001508,0.002596&om=1" target="_hplink">Google Maps</a>.

  • Greenland Oddity

    <a href="http://www.huffingtonpost.com/social/tobiasaurusrex"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/641629-tiny.png?20100701194750" /></a><a href="http://www.huffingtonpost.com/social/tobiasaurusrex">tobiasaurusrex</a>:<br />At 70* North, 40* West in Greenland, there is a massive, marbled prism sumberged in the snow, and a censored block as well.

  • Freeway love for Gina

    <a href="http://www.huffingtonpost.com/social/tarzan1234"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/tarzan1234">tarzan1234</a>:<br />Sighted on freeway 520 in Seattle, Washington

  • Strange Patterns Over Myton, Utah

    via Patrick B.

  • Kenya Multiple Swastika Buildings

    <a href="http://www.huffingtonpost.com/social/kipper84"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/kipper84">kipper84</a>:<br />This is in Nairobi Kenya close to Kenyatta Hospital

  • Abandoned Ships from the Aral Sea

    <a href="http://www.huffingtonpost.com/social/Quwhellyicquid"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/1015319-2-tiny.png?20100715131311" /></a><a href="http://www.huffingtonpost.com/social/Quwhellyicquid">Quwhellyicquid</a>:<br />Ships now are on dry land since the Aral Sea has dried up

  • Area 52 - Nelis Air Force Base

    <a href="http://www.huffingtonpost.com/social/the_odyssey"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/1179470-tiny.png?20100823235041" /></a><a href="http://www.huffingtonpost.com/social/the_odyssey">the odyssey</a>:<br />Greek columns on a building in Nevada: http://maps.google.com/?ie=UTF8&ll=37.678399,-116.670154&spn=0.002654,0.005584&t=h&z=18

  • Area 52 Pyramid?

    <a href="http://www.huffingtonpost.com/social/the_odyssey"><img style="float:left;padding-right:6px !important;" src="http://i.huffpost.com/profiles/1179470-tiny.png?20100823235041" /></a><a href="http://www.huffingtonpost.com/social/the_odyssey">the odyssey</a>:<br />Pyramid looking thing and censored area in the Nellis Air Force Base / Area 52: http://maps.google.com/?ie=UTF8&ll=37.835547,-116.727076&spn=0.021183,0.044675&t=h&z=15

  • Subdivision in Canadian Wilderness

    <a href="http://www.huffingtonpost.com/social/Paul_Nodwell"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/624261743/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Paul_Nodwell">Paul Nodwell</a>:<br />Must be a google earth glitch Lat 45.63d x long -78.333

  • Lake Huron Sunken Ship

    via <a href="http://maps.google.com/maps?hl=en&ie=UTF8&ll=43.005428,-82.408721&spn=0.002758,0.004801&t=h&z=18" target="_hplink">Google Maps</a>

  • 'Missing' Planes

    Via <a href="http://maps.google.com/?ie=UTF8&t=k&om=1&ll=40.219488,-76.854939&spn=0.001016,0.001722&z=19">Google Maps</a>

  • Giant Human Shadow Close to Area 51

    <a href="http://www.huffingtonpost.com/social/zman977"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/zman977">zman977</a>:<br />A giant human like shadow close to Area 51 with other weird things by it. The shadow measures out to be about 90 feet.