diff --git a/frontend/src/views/apps/MemoryApp.vue b/frontend/src/views/apps/MemoryApp.vue
index c2aa588..837c808 100644
--- a/frontend/src/views/apps/MemoryApp.vue
+++ b/frontend/src/views/apps/MemoryApp.vue
@@ -16,6 +16,7 @@ import {
   VolumeX,
   Zap,
 } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import { computed, onBeforeUnmount, onMounted } from 'vue'
 
 import { playMemorySound } from '@/features/games/memory/audio'
@@ -135,7 +136,10 @@ onBeforeUnmount(() => {
       </div>
       <div class="memory-header__actions">
         <Sparkles :size="23" aria-hidden="true" />
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           :aria-label="phone.t(memory.soundEnabled ? 'Apps.memory.mute' : 'Apps.memory.unmute')"
           :title="phone.t(memory.soundEnabled ? 'Apps.memory.mute' : 'Apps.memory.unmute')"
@@ -143,7 +147,7 @@ onBeforeUnmount(() => {
         >
           <Volume2 v-if="memory.soundEnabled" :size="18" aria-hidden="true" />
           <VolumeX v-else :size="18" aria-hidden="true" />
-        </button>
+        </k-button>
       </div>
     </header>
 
@@ -182,7 +186,10 @@ onBeforeUnmount(() => {
 
     <section v-else class="memory-game">
       <div class="memory-stats">
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           class="memory-menu-button"
           :aria-label="phone.t('Apps.memory.backToMenu')"
@@ -190,7 +197,7 @@ onBeforeUnmount(() => {
           @click="returnToMenu"
         >
           <ChevronLeft :size="18" :stroke-width="2.6" aria-hidden="true" />
-        </button>
+        </k-button>
         <div>
           <span>{{ phone.t('Apps.memory.time') }}</span>
           <strong>{{ formatTime(memory.elapsedMs) }}</strong>
@@ -199,9 +206,9 @@ onBeforeUnmount(() => {
           <span>{{ phone.t('Apps.memory.moves') }}</span>
           <strong>{{ game.moves }}</strong>
         </div>
-        <button type="button" @click="restart">
+        <k-button component="button" clear rounded type="button" @click="restart">
           {{ phone.t('Apps.memory.restart') }}
-        </button>
+        </k-button>
       </div>
 
       <div
diff --git a/frontend/src/views/apps/MinesweeperApp.vue b/frontend/src/views/apps/MinesweeperApp.vue
index 63b1612..c148ff0 100644
--- a/frontend/src/views/apps/MinesweeperApp.vue
+++ b/frontend/src/views/apps/MinesweeperApp.vue
@@ -7,6 +7,7 @@ import {
   Volume2,
   VolumeX,
 } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import {
   computed,
   onBeforeUnmount,
@@ -208,7 +209,10 @@ onBeforeUnmount(() => {
         <span>{{ phone.t('Apps.minesweeper.eyebrow') }}</span>
         <h1>{{ phone.t('Apps.minesweeper.name') }}</h1>
       </div>
-      <button
+      <k-button
+        component="button"
+        clear
+        rounded
         type="button"
         :aria-label="
           phone.t(
@@ -221,7 +225,7 @@ onBeforeUnmount(() => {
       >
         <Volume2 v-if="minesweeper.soundEnabled" :size="18" aria-hidden="true" />
         <VolumeX v-else :size="18" aria-hidden="true" />
-      </button>
+      </k-button>
     </header>
 
     <section v-if="minesweeper.menuOpen" class="minesweeper-menu">
@@ -275,7 +279,10 @@ onBeforeUnmount(() => {
       }"
     >
       <div class="minesweeper-toolbar">
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           class="minesweeper-toolbar__icon"
           :aria-label="phone.t('Apps.minesweeper.backToMenu')"
@@ -283,7 +290,7 @@ onBeforeUnmount(() => {
           @click.stop="minesweeper.showMenu()"
         >
           <ChevronLeft :size="19" :stroke-width="2.7" aria-hidden="true" />
-        </button>
+        </k-button>
         <div>
           <span>{{ phone.t('Apps.minesweeper.mines') }}</span>
           <strong>{{ minesRemaining }}</strong>
@@ -292,14 +299,17 @@ onBeforeUnmount(() => {
           <span>{{ phone.t('Apps.minesweeper.time') }}</span>
           <strong>{{ formatTime(minesweeper.elapsedMs) }}</strong>
         </div>
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           class="minesweeper-toolbar__icon"
           :aria-label="phone.t('Apps.minesweeper.restart')"
           @click="restart"
         >
           <RotateCcw :size="17" :stroke-width="2.5" aria-hidden="true" />
-        </button>
+        </k-button>
       </div>
 
       <div
diff --git a/frontend/src/views/apps/NeonDropApp.vue b/frontend/src/views/apps/NeonDropApp.vue
index 1f24c40..2ec58a7 100644
--- a/frontend/src/views/apps/NeonDropApp.vue
+++ b/frontend/src/views/apps/NeonDropApp.vue
@@ -9,6 +9,7 @@ import {
   VolumeX,
   Zap,
 } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
 
 import { playNeonDropSound } from '@/features/games/neon-drop/audio'
@@ -206,7 +207,10 @@ onBeforeUnmount(() => {
         <span>{{ phone.t('Apps.neonDrop.eyebrow') }}</span>
         <h1>{{ phone.t('Apps.neonDrop.name') }}</h1>
       </div>
-      <button
+      <k-button
+        component="button"
+        clear
+        rounded
         type="button"
         :aria-label="
           phone.t(
@@ -219,7 +223,7 @@ onBeforeUnmount(() => {
           v-else
           :size="18"
         />
-      </button>
+      </k-button>
     </header>
 
     <section v-if="neon.menuOpen" class="neon-menu">
@@ -274,13 +278,16 @@ onBeforeUnmount(() => {
 
     <section v-else-if="game" class="neon-game">
       <div class="neon-toolbar">
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           :aria-label="phone.t('Apps.neonDrop.backToMenu')"
           @click="neon.showMenu()"
         >
           <ChevronLeft :size="19" />
-        </button>
+        </k-button>
         <div>
           <span>{{ phone.t('Apps.neonDrop.score') }}</span
           ><strong>{{ game.score }}</strong>
@@ -289,7 +296,10 @@ onBeforeUnmount(() => {
           <span>{{ phone.t('Apps.neonDrop.lines') }}</span
           ><strong>{{ game.lines }}</strong>
         </div>
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           :aria-label="phone.t('Apps.neonDrop.pause')"
           @click="togglePause"
@@ -299,7 +309,7 @@ onBeforeUnmount(() => {
             :size="16"
             fill="currentColor"
           /><Play v-else :size="16" fill="currentColor" />
-        </button>
+        </k-button>
       </div>
 
       <div class="neon-play-area">
diff --git a/frontend/src/views/apps/NumberMergeApp.vue b/frontend/src/views/apps/NumberMergeApp.vue
index c1d6cbf..4edeea0 100644
--- a/frontend/src/views/apps/NumberMergeApp.vue
+++ b/frontend/src/views/apps/NumberMergeApp.vue
@@ -5,6 +5,7 @@ import {
   Volume2,
   VolumeX,
 } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import { computed, onBeforeUnmount, onMounted, ref, type CSSProperties } from 'vue'
 
 import { playNumberMergeSound } from '@/features/games/number-merge/audio'
@@ -135,7 +136,10 @@ onBeforeUnmount(() => window.removeEventListener('keydown', handleKeydown))
         <span>{{ phone.t('Apps.numberMerge.eyebrow') }}</span>
         <h1>{{ phone.t('Apps.numberMerge.name') }}</h1>
       </div>
-      <button
+      <k-button
+        component="button"
+        clear
+        rounded
         type="button"
         :aria-label="
           phone.t(
@@ -155,7 +159,7 @@ onBeforeUnmount(() => window.removeEventListener('keydown', handleKeydown))
       >
         <Volume2 v-if="numberMerge.soundEnabled" :size="18" aria-hidden="true" />
         <VolumeX v-else :size="18" aria-hidden="true" />
-      </button>
+      </k-button>
     </header>
 
     <section v-if="numberMerge.menuOpen" class="number-merge-menu">
@@ -210,7 +214,10 @@ onBeforeUnmount(() => window.removeEventListener('keydown', handleKeydown))
 
     <section v-else-if="game" class="number-merge-game">
       <div class="number-merge-toolbar">
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           class="number-merge-toolbar__icon"
           :aria-label="phone.t('Apps.numberMerge.backToMenu')"
@@ -218,7 +225,7 @@ onBeforeUnmount(() => window.removeEventListener('keydown', handleKeydown))
           @click="numberMerge.showMenu"
         >
           <ChevronLeft :size="19" :stroke-width="2.7" aria-hidden="true" />
-        </button>
+        </k-button>
         <div>
           <span>{{ phone.t('Apps.numberMerge.score') }}</span>
           <strong>{{ formatScore(game.score) }}</strong>
@@ -227,7 +234,10 @@ onBeforeUnmount(() => window.removeEventListener('keydown', handleKeydown))
           <span>{{ phone.t('Apps.numberMerge.best') }}</span>
           <strong>{{ formatScore(numberMerge.bestScore) }}</strong>
         </div>
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           class="number-merge-toolbar__icon number-merge-toolbar__restart"
           :aria-label="phone.t('Apps.numberMerge.newGame')"
@@ -235,7 +245,7 @@ onBeforeUnmount(() => window.removeEventListener('keydown', handleKeydown))
           @click="requestNewGame"
         >
           <RotateCcw :size="17" :stroke-width="2.5" aria-hidden="true" />
-        </button>
+        </k-button>
       </div>
 
       <div
diff --git a/frontend/src/views/apps/SkyFlappyApp.vue b/frontend/src/views/apps/SkyFlappyApp.vue
index 1adbc4c..8df78dc 100644
--- a/frontend/src/views/apps/SkyFlappyApp.vue
+++ b/frontend/src/views/apps/SkyFlappyApp.vue
@@ -2,6 +2,7 @@
 
 <script setup lang="ts">
 import { ChevronLeft, Pause, Play, RotateCcw, Volume2, VolumeX, Wind } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import { computed, onBeforeUnmount, ref, watch, type CSSProperties } from 'vue'
 
 import { playSkyFlappySound } from '@/features/games/sky-flappy/audio'
@@ -116,9 +117,9 @@ onBeforeUnmount(() => {
   >
     <header v-if="flappy.menuOpen" class="flappy-header">
       <div><span>{{ phone.t('Apps.skyFlappy.eyebrow') }}</span><h1>{{ phone.t('Apps.skyFlappy.name') }}</h1></div>
-      <button type="button" :aria-label="phone.t(flappy.soundEnabled ? 'Apps.skyFlappy.mute' : 'Apps.skyFlappy.unmute')" @click="toggleSound">
+      <k-button component="button" clear rounded type="button" :aria-label="phone.t(flappy.soundEnabled ? 'Apps.skyFlappy.mute' : 'Apps.skyFlappy.unmute')" @click="toggleSound">
         <Volume2 v-if="flappy.soundEnabled" :size="18" /><VolumeX v-else :size="18" />
-      </button>
+      </k-button>
     </header>
 
     <section v-if="flappy.menuOpen" class="flappy-menu">
@@ -141,10 +142,10 @@ onBeforeUnmount(() => {
 
     <section v-else-if="game" class="flappy-game">
       <div class="flappy-toolbar">
-        <button type="button" :aria-label="phone.t('Apps.skyFlappy.backToMenu')" @pointerdown.stop="flappy.showMenu()" @click.stop="flappy.showMenu()"><ChevronLeft :size="19" /></button>
+        <k-button component="button" clear rounded type="button" :aria-label="phone.t('Apps.skyFlappy.backToMenu')" @pointerdown.stop="flappy.showMenu()" @click.stop="flappy.showMenu()"><ChevronLeft :size="19" /></k-button>
         <div><span>{{ phone.t('Apps.skyFlappy.score') }}</span><strong>{{ game.score }}</strong></div>
         <div><span>{{ phone.t('Apps.skyFlappy.best') }}</span><strong>{{ flappy.highScore }}</strong></div>
-        <button type="button" :aria-label="phone.t('Apps.skyFlappy.pause')" @click="togglePause"><Pause v-if="game.status === 'playing'" :size="16" fill="currentColor" /><Play v-else :size="16" fill="currentColor" /></button>
+        <k-button component="button" clear rounded type="button" :aria-label="phone.t('Apps.skyFlappy.pause')" @click="togglePause"><Pause v-if="game.status === 'playing'" :size="16" fill="currentColor" /><Play v-else :size="16" fill="currentColor" /></k-button>
       </div>
 
       <button type="button" class="flappy-stage" :class="{ 'flappy-stage--crashed': game.status === 'over' && !gameOverVisible }" :aria-label="phone.t('Apps.skyFlappy.flap')" @pointerdown.stop.prevent="flap">
diff --git a/frontend/src/views/apps/SnakeApp.vue b/frontend/src/views/apps/SnakeApp.vue
index a84302f..bd376ae 100644
--- a/frontend/src/views/apps/SnakeApp.vue
+++ b/frontend/src/views/apps/SnakeApp.vue
@@ -4,6 +4,7 @@ import {
   Pause,
   Play,
 } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import { computed, onBeforeUnmount, onMounted, watch } from 'vue'
 
 import {
@@ -205,7 +206,10 @@ onBeforeUnmount(() => {
 
     <section v-else class="snake-game">
       <div class="snake-game__meta">
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           class="snake-game__back"
           :aria-label="phone.t('Apps.snake.backToMenu')"
@@ -213,12 +217,15 @@ onBeforeUnmount(() => {
           @click="returnToMenu"
         >
           <ChevronLeft :size="18" :stroke-width="2.7" aria-hidden="true" />
-        </button>
+        </k-button>
         <div>
           <span>{{ phone.t('Apps.snake.score') }}</span>
           <strong>{{ game.score }}</strong>
         </div>
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           v-if="game.status !== 'game-over'"
           type="button"
           class="snake-game__pause"
@@ -233,7 +240,7 @@ onBeforeUnmount(() => {
         >
           <Play v-if="game.status === 'paused'" :size="18" fill="currentColor" />
           <Pause v-else :size="18" fill="currentColor" />
-        </button>
+        </k-button>
       </div>
 
       <div
diff --git a/frontend/src/views/apps/TowerStackApp.vue b/frontend/src/views/apps/TowerStackApp.vue
index ecdc347..780879f 100644
--- a/frontend/src/views/apps/TowerStackApp.vue
+++ b/frontend/src/views/apps/TowerStackApp.vue
@@ -8,6 +8,7 @@ import {
   Volume2,
   VolumeX,
 } from 'lucide-vue-next'
+import { kButton } from 'konsta/vue'
 import {
   computed,
   onBeforeUnmount,
@@ -185,14 +186,17 @@ onBeforeUnmount(() => {
         <span>{{ phone.t('Apps.towerStack.eyebrow') }}</span>
         <h1>{{ phone.t('Apps.towerStack.name') }}</h1>
       </div>
-      <button
+      <k-button
+        component="button"
+        clear
+        rounded
         type="button"
         :aria-label="phone.t(tower.soundEnabled ? 'Apps.towerStack.mute' : 'Apps.towerStack.unmute')"
         @click="toggleSound"
       >
         <Volume2 v-if="tower.soundEnabled" :size="18" aria-hidden="true" />
         <VolumeX v-else :size="18" aria-hidden="true" />
-      </button>
+      </k-button>
     </header>
 
     <section v-if="tower.menuOpen" class="tower-menu">
@@ -232,18 +236,21 @@ onBeforeUnmount(() => {
 
     <section v-else-if="game" class="tower-game">
       <div class="tower-toolbar">
-        <button
+        <k-button
+          component="button"
+          clear
+          rounded
           type="button"
           :aria-label="phone.t('Apps.towerStack.backToMenu')"
           @pointerdown.stop="tower.showMenu()"
           @click.stop="tower.showMenu()"
-        ><ChevronLeft :size="19" /></button>
+        ><ChevronLeft :size="19" /></k-button>
         <div><span>{{ phone.t('Apps.towerStack.height') }}</span><strong>{{ game.blocks.length - 1 }}</strong></div>
         <div><span>{{ phone.t('Apps.towerStack.score') }}</span><strong>{{ game.score }}</strong></div>
-        <button type="button" :aria-label="phone.t('Apps.towerStack.pause')" @click="togglePause">
+        <k-button component="button" clear rounded type="button" :aria-label="phone.t('Apps.towerStack.pause')" @click="togglePause">
           <Pause v-if="game.status === 'playing'" :size="17" fill="currentColor" />
           <Play v-else :size="17" fill="currentColor" />
-        </button>
+        </k-button>
       </div>
 
       <button