  We report on the results of femtoscopic analyses of Pb-Pb collisions at
$\sqrt{s_{NN}}$=2.76 TeV and pp collisions at $\sqrt{s}$= 7 TeV with identical
charged and neutral kaons. The femtoscopic correlations allow one to measure
the space-time characteristics of particle production using particle
correlations due to the effects of quantum statistics for identical particles
and final state interaction for both identical and non-identical ones. Small
contributions from resonance decays make kaon femtoscopy an ideal tool for the
correlation studies. In conjunction with pion and proton femtoscopy, they can
also reveal properties of collective dynamics in heavy-ion collisions. ALICE
results are compared with the existing world data on kaon femtoscopy in
different type of collisions. The theoretical expectations for pp and Pb-Pb
collisions are considered.
