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UI
Glyph
Very Basic. Android L (Lollipop)
done, check mark, good
Black
512x512
ok, Accept, Choose
iOS7 optimized
Outline
Social Media
thumbs-up, Communication, Agree
social-network, ok, thumbs-up
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Social media
Smooth
Icocentre Free Icons
done, Check, ok
Network & communications
Communication & Technology
ok, speech bubble, Bubble
Social Glyph
ok, Odnoklassniki
480x480
Travel & hotels
Meanicons
meanicons, ok, okay
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Mobile apps
Free Retina Icon Set
ok, Face, pleasure
60x60
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Photography & graphic design
3D
32x32 Free Design Icons
yes, mark, Apply
32x32
Business & finance
Pixel
24x24 Free Pixel Icons
ok
24x24
Snipicons
ok, Circle
Lynx Black
ok, Dialog
Free Mobile Icon Kit
ok, smile
64x64
Mixed
Flat UI Icons Free
yes, Check, checkmark
Check, Accept, yes
Signs & symbols
Free 3d Glossy Interface Icon Set
yes, mark, validation
Accept, ready, tick
Computer & hardware
Blue Bits Basic and Bonus
ok, yes, Check
256x256
Email, Check, ok
profile, ok, Check
Pulse Pack
no, 51lll, ok
ok, no
