diff --git a/.gitignore b/.gitignore
index b47393f..f16df8f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -86,6 +86,9 @@ __pycache__/
 
 # Distribution / packaging
 .Python
+# Artefactos del icono macOS (regenerables desde assets/icon.png con build.sh)
+assets/icon.icns
+assets/icon.iconset/
 build/
 develop-eggs/
 dist/
diff --git a/README.md b/README.md
index 49009cd..d239941 100644
--- a/README.md
+++ b/README.md
@@ -88,9 +88,26 @@ fuente se ejecuta con `python -m jlauncher`).
     patchelf (Nuitka usa `install_name_tool`).
 - `git` en el PATH.
 
-### macOS
+### macOS (.app + .dmg)
 
-Compila en el propio Mac (Nuitka no compila cruzado): `./build.sh` genera
-`jlauncher-v…-darwin-arm64.tar.gz`. Como el binario no va firmado, la primera vez quizá
-debas hacer `xattr -dr com.apple.quarantine jlauncher` o abrirlo con clic derecho → Abrir.
-Lánzalo desde terminal (`./jlauncher`).
+Compila en el propio Mac (Nuitka no compila cruzado). En macOS, `./build.sh` no genera un
+binario suelto sino una **app nativa**:
+
+```bash
+./build.sh
+# -> dist/jlauncher.app
+# -> dist/jlauncher-v<versión>-macos-<arch>.dmg   (arrastrar la app a Aplicaciones)
+```
+
+El icono es provisional y se construye a `assets/icon.icns` desde `assets/icon.png`
+(regenerable con `QT_QPA_PLATFORM=offscreen .venv/bin/python assets/make_icon.py`). Para
+cambiarlo, sustituye `assets/icon.png` por un PNG cuadrado 1024×1024 y recompila.
+
+A diferencia del onefile, la `.app` **no** escribe junto a sí misma (rompería al moverla a
+`/Applications`): guarda sus datos en
+`~/Library/Application Support/jailgames/jlauncher/` (`jlauncher_data/`, `settings.json` y
+una copia editable de `games.toml`, sembrada la primera vez desde el bundle).
+
+La app va **sin firma Developer ID** (firma ad-hoc), así que Gatekeeper avisará la primera
+vez: ábrela con **clic derecho → Abrir**, o ejecuta
+`xattr -dr com.apple.quarantine /Applications/jlauncher.app`.
diff --git a/assets/icon.png b/assets/icon.png
new file mode 100644
index 0000000..2d6f380
Binary files /dev/null and b/assets/icon.png differ
diff --git a/assets/make_icon.py b/assets/make_icon.py
new file mode 100644
index 0000000..3aa00fc
--- /dev/null
+++ b/assets/make_icon.py
@@ -0,0 +1,99 @@
+"""Genera un icono provisional para jlauncher (PNG 1024x1024).
+
+Dibuja un «squircle» con degradado y un triángulo de «play» (es un lanzador de juegos).
+Se ejecuta sin pantalla con la plataforma offscreen de Qt:
+
+    QT_QPA_PLATFORM=offscreen .venv/bin/python assets/make_icon.py
+
+Salida: assets/icon.png. El .icns lo construye build.sh con iconutil.
+"""
+
+from __future__ import annotations
+
+import os
+from pathlib import Path
+
+os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
+
+from PySide6.QtCore import QPointF, QRectF, Qt  # noqa: E402
+from PySide6.QtGui import (  # noqa: E402
+    QBrush,
+    QColor,
+    QGuiApplication,
+    QImage,
+    QLinearGradient,
+    QPainter,
+    QPainterPath,
+)
+
+SIZE = 1024
+
+
+def render() -> QImage:
+    img = QImage(SIZE, SIZE, QImage.Format_ARGB32)
+    img.fill(Qt.transparent)
+
+    p = QPainter(img)
+    p.setRenderHint(QPainter.Antialiasing, True)
+
+    # «Squircle»: rectángulo con esquinas redondeadas estilo macOS (~22% del lado).
+    margin = SIZE * 0.06
+    rect = QRectF(margin, margin, SIZE - 2 * margin, SIZE - 2 * margin)
+    radius = rect.width() * 0.2237
+    body = QPainterPath()
+    body.addRoundedRect(rect, radius, radius)
+
+    grad = QLinearGradient(rect.topLeft(), rect.bottomRight())
+    grad.setColorAt(0.0, QColor("#4b3bd6"))
+    grad.setColorAt(1.0, QColor("#7b2ff7"))
+    p.fillPath(body, QBrush(grad))
+
+    # Barras verticales tenues: guiño a «jail».
+    p.save()
+    p.setClipPath(body)
+    p.setPen(Qt.NoPen)
+    p.setBrush(QColor(255, 255, 255, 26))
+    bars = 5
+    bar_w = rect.width() * 0.052
+    gap = (rect.width() - bars * bar_w) / (bars + 1)
+    x = rect.left() + gap
+    for _ in range(bars):
+        p.drawRoundedRect(QRectF(x, rect.top(), bar_w, rect.height()), bar_w / 2, bar_w / 2)
+        x += bar_w + gap
+    p.restore()
+
+    # Triángulo de «play» centrado, blanco con esquinas redondeadas.
+    cx, cy = rect.center().x(), rect.center().y()
+    r = rect.width() * 0.26
+    tri = QPainterPath()
+    tri.moveTo(QPointF(cx - r * 0.55, cy - r * 0.95))
+    tri.lineTo(QPointF(cx - r * 0.55, cy + r * 0.95))
+    tri.lineTo(QPointF(cx + r * 1.0, cy))
+    tri.closeSubpath()
+
+    pen_brush = QColor("#ffffff")
+    stroker_pen = p.pen()
+    stroker_pen.setColor(pen_brush)
+    stroker_pen.setWidthF(r * 0.28)
+    stroker_pen.setJoinStyle(Qt.RoundJoin)
+    stroker_pen.setCapStyle(Qt.RoundCap)
+    p.strokePath(tri, stroker_pen)
+    p.fillPath(tri, pen_brush)
+
+    p.end()
+    return img
+
+
+def main() -> int:
+    QGuiApplication([])
+    out = Path(__file__).resolve().parent / "icon.png"
+    img = render()
+    if not img.save(str(out), "PNG"):
+        print(f"[icon] no se pudo guardar {out}")
+        return 1
+    print(f"[icon] generado {out} ({SIZE}x{SIZE})")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/build.sh b/build.sh
index 031f813..4100244 100755
--- a/build.sh
+++ b/build.sh
@@ -1,6 +1,8 @@
 #!/usr/bin/env bash
-# Compila jlauncher a un binario standalone con Nuitka y empaqueta un tar.gz de release.
-# Requisitos del sistema: python3-dev, gcc, patchelf (ver README).
+# Compila jlauncher con Nuitka y empaqueta un release.
+#   - Linux: binario onefile + tar.gz.
+#   - macOS: jlauncher.app (con icono) dentro de un .dmg arrastrable a /Applications.
+# Requisitos del sistema (no los instala el script): ver README (compilador C, git…).
 set -euo pipefail
 
 HERE="$(cd "$(dirname "$0")" && pwd)"
@@ -13,7 +15,6 @@ if [ -z "$VERSION" ]; then
 fi
 ARCH="$(uname -m)"
 OS="$(uname -s | tr '[:upper:]' '[:lower:]')"
-RELEASE_NAME="jlauncher-v${VERSION}-${OS}-${ARCH}"
 
 if [ ! -d .venv ]; then
   echo "[build] creando venv…"
@@ -39,25 +40,113 @@ echo "[build] versión: v${VERSION}"
 echo "[build] limpiando artefactos previos…"
 rm -rf dist build app.build app.dist app.onefile-build
 
-echo "[build] compilando (PySide6 onefile; puede tardar varios minutos)…"
-.venv/bin/python -m nuitka \
-  --onefile \
-  --assume-yes-for-downloads \
-  --enable-plugin=pyside6 \
-  --include-package=jlauncher \
-  --output-dir=dist \
-  --output-filename=jlauncher \
-  --remove-output \
-  --lto=yes \
-  app.py
+# ---------------------------------------------------------------------------
+# Construye assets/icon.icns desde assets/icon.png (regenerable con make_icon.py).
+# ---------------------------------------------------------------------------
+build_icns() {
+  local png="assets/icon.png"
+  local icns="assets/icon.icns"
+  if [ ! -f "$png" ]; then
+    echo "[build] generando icono provisional (assets/icon.png)…"
+    QT_QPA_PLATFORM=offscreen .venv/bin/python assets/make_icon.py
+  fi
+  echo "[build] construyendo ${icns}…"
+  local iconset="assets/icon.iconset"
+  rm -rf "$iconset"; mkdir -p "$iconset"
+  local s
+  for s in 16 32 128 256 512; do
+    sips -z "$s" "$s"           "$png" --out "$iconset/icon_${s}x${s}.png"     >/dev/null
+    sips -z $((s*2)) $((s*2))   "$png" --out "$iconset/icon_${s}x${s}@2x.png"  >/dev/null
+  done
+  iconutil -c icns "$iconset" -o "$icns"
+  rm -rf "$iconset"
+}
 
-echo "[build] copiando games.toml junto al binario…"
-cp games.toml dist/games.toml
+if [ "$OS" = "darwin" ]; then
+  # -------------------------------------------------------------------------
+  # macOS: app bundle + DMG
+  # -------------------------------------------------------------------------
+  build_icns
 
-echo "[build] empaquetando release ${RELEASE_NAME}.tar.gz…"
-tar -czf "dist/${RELEASE_NAME}.tar.gz" -C dist jlauncher games.toml
+  echo "[build] compilando jlauncher.app (PySide6; puede tardar varios minutos)…"
+  .venv/bin/python -m nuitka \
+    --standalone \
+    --macos-create-app-bundle \
+    --macos-app-icon=assets/icon.icns \
+    --macos-app-name=jlauncher \
+    --macos-app-version="$VERSION" \
+    --macos-signed-app-name=com.jailgames.jlauncher \
+    --company-name=jailgames \
+    --product-name=jlauncher \
+    --product-version="$VERSION" \
+    --assume-yes-for-downloads \
+    --enable-plugin=pyside6 \
+    --include-package=jlauncher \
+    --output-dir=dist \
+    --output-filename=jlauncher \
+    --remove-output \
+    app.py
 
-echo "[build] hecho:"
-ls -lh "dist/jlauncher" "dist/games.toml" "dist/${RELEASE_NAME}.tar.gz"
-echo "[build] el binario crea jlauncher_data/ y settings.json junto a sí mismo."
-echo "[build] distribuir: descomprimir el tar.gz (jlauncher + games.toml juntos)."
+  # Según la versión, Nuitka nombra el bundle a partir del script de entrada
+  # (app.py -> app.app). Lo normalizamos a jlauncher.app.
+  APP="dist/jlauncher.app"
+  if [ ! -d "$APP" ]; then
+    PRODUCED="$(find dist -maxdepth 1 -name '*.app' | head -n1)"
+    if [ -z "$PRODUCED" ]; then
+      echo "[build] Nuitka no produjo ningún .app en dist/" >&2
+      exit 1
+    fi
+    rm -rf "$APP"
+    mv "$PRODUCED" "$APP"
+  fi
+
+  echo "[build] sembrando games.toml en Contents/Resources…"
+  cp games.toml "$APP/Contents/Resources/games.toml"
+
+  # Bundle ad-hoc (sin Developer ID): quitamos quarantine para abrir sin fricción local.
+  xattr -dr com.apple.quarantine "$APP" 2>/dev/null || true
+
+  DMG="dist/jlauncher-v${VERSION}-macos-${ARCH}.dmg"
+  echo "[build] empaquetando ${DMG}…"
+  STAGE="$(mktemp -d)"
+  cp -R "$APP" "$STAGE/"
+  ln -s /Applications "$STAGE/Applications"
+  rm -f "$DMG"
+  hdiutil create -volname "jlauncher" -srcfolder "$STAGE" \
+    -ov -format UDZO "$DMG" >/dev/null
+  rm -rf "$STAGE"
+
+  echo "[build] hecho:"
+  du -sh "$APP" | sed 's/^/[build] /'
+  ls -lh "$DMG"
+  echo "[build] la app guarda datos en ~/Library/Application Support/jailgames/jlauncher/."
+  echo "[build] distribuir: el .dmg (arrastrar jlauncher.app a Aplicaciones)."
+  echo "[build] sin firma Developer ID: primera apertura con clic derecho → Abrir."
+else
+  # -------------------------------------------------------------------------
+  # Linux (y resto): binario onefile + tar.gz
+  # -------------------------------------------------------------------------
+  RELEASE_NAME="jlauncher-v${VERSION}-${OS}-${ARCH}"
+  echo "[build] compilando (PySide6 onefile; puede tardar varios minutos)…"
+  .venv/bin/python -m nuitka \
+    --onefile \
+    --assume-yes-for-downloads \
+    --enable-plugin=pyside6 \
+    --include-package=jlauncher \
+    --output-dir=dist \
+    --output-filename=jlauncher \
+    --remove-output \
+    --lto=yes \
+    app.py
+
+  echo "[build] copiando games.toml junto al binario…"
+  cp games.toml dist/games.toml
+
+  echo "[build] empaquetando release ${RELEASE_NAME}.tar.gz…"
+  tar -czf "dist/${RELEASE_NAME}.tar.gz" -C dist jlauncher games.toml
+
+  echo "[build] hecho:"
+  ls -lh "dist/jlauncher" "dist/games.toml" "dist/${RELEASE_NAME}.tar.gz"
+  echo "[build] el binario crea jlauncher_data/ y settings.json junto a sí mismo."
+  echo "[build] distribuir: descomprimir el tar.gz (jlauncher + games.toml juntos)."
+fi
diff --git a/jlauncher/paths.py b/jlauncher/paths.py
index 0ae48bb..d50f58e 100644
--- a/jlauncher/paths.py
+++ b/jlauncher/paths.py
@@ -9,11 +9,16 @@ Ejecutando desde fuente usamos la raíz del proyecto (la carpeta que contiene ``
 from __future__ import annotations
 
 import os
+import shutil
 import sys
 from pathlib import Path
 
 CONFIG_NAME = "games.toml"
 
+# Carpeta de soporte en macOS cuando corremos como .app: ~/Library/Application Support/…
+APP_SUPPORT_VENDOR = "jailgames"
+APP_SUPPORT_APP = "jlauncher"
+
 
 def is_compiled() -> bool:
     """True si corremos como binario Nuitka (define ``__compiled__`` en cada módulo)."""
@@ -34,14 +39,62 @@ def base_dir() -> Path:
     return Path(__file__).resolve().parent.parent
 
 
+def macos_app_bundle() -> Path | None:
+    """Ruta del .app si corremos como bundle de macOS (``…/jlauncher.app``); si no, None.
+
+    En un app bundle el ejecutable vive en ``…/jlauncher.app/Contents/MacOS/jlauncher``,
+    dentro de un árbol no escribible al instalarse en ``/Applications``. Detectarlo nos
+    deja redirigir datos y settings a ``~/Library/Application Support``.
+    """
+    if not is_compiled() or sys.platform != "darwin":
+        return None
+    exe = Path(sys.executable).resolve()
+    for parent in exe.parents:
+        if parent.suffix == ".app":
+            return parent
+    return None
+
+
+def support_dir() -> Path:
+    """Carpeta de soporte escribible en macOS (.app); se crea si no existe."""
+    root = (
+        Path.home()
+        / "Library"
+        / "Application Support"
+        / APP_SUPPORT_VENDOR
+        / APP_SUPPORT_APP
+    )
+    root.mkdir(parents=True, exist_ok=True)
+    return root
+
+
+def writable_base() -> Path:
+    """Base donde escribir datos/settings: Application Support si .app, si no base_dir()."""
+    if macos_app_bundle() is not None:
+        return support_dir()
+    return base_dir()
+
+
 def config_file() -> Path:
-    """Ruta a games.toml (junto al ejecutable / raíz del proyecto)."""
+    """Ruta a games.toml.
+
+    En .app vive en Application Support (editable y persistente); se siembra la primera vez
+    desde ``Contents/Resources/games.toml`` del bundle. Si no, junto al ejecutable / raíz.
+    """
+    bundle = macos_app_bundle()
+    if bundle is not None:
+        target = writable_base() / CONFIG_NAME
+        if not target.exists():
+            seed = bundle / "Contents" / "Resources" / CONFIG_NAME
+            if seed.exists():
+                shutil.copy2(seed, target)
+        return target
     return base_dir() / CONFIG_NAME
 
 
 def data_root(data_dir: str = "jlauncher_data") -> Path:
     """Carpeta raíz de datos; se crea si no existe."""
-    root = base_dir() / data_dir
+    root = writable_base() / data_dir
     root.mkdir(parents=True, exist_ok=True)
     return root
 
diff --git a/jlauncher/settings.py b/jlauncher/settings.py
index dee18b3..c931de9 100644
--- a/jlauncher/settings.py
+++ b/jlauncher/settings.py
@@ -1,4 +1,4 @@
-"""Preferencias persistentes en settings.json, junto al ejecutable."""
+"""Preferencias persistentes en settings.json, junto a los datos de la app."""
 
 from __future__ import annotations
 
@@ -6,7 +6,7 @@ import json
 from dataclasses import asdict, dataclass, field
 from pathlib import Path
 
-from .paths import base_dir
+from .paths import writable_base
 
 SETTINGS_NAME = "settings.json"
 
@@ -43,7 +43,7 @@ class Settings:
 
 
 def settings_path() -> Path:
-    return base_dir() / SETTINGS_NAME
+    return writable_base() / SETTINGS_NAME
 
 
 def load_settings() -> Settings: