diff --git a/apps/golf-gps/golf-gps.js b/apps/golf-gps/golf-gps.js
new file mode 100644
index 000000000..f593c877a
--- /dev/null
+++ b/apps/golf-gps/golf-gps.js
@@ -0,0 +1,301 @@
+var currentHole = 1,
+  totalShots = 0,
+  courseName = "",
+  latLast,
+  lonLast,
+  W = g.getWidth(),
+  H = g.getHeight(),
+  lat = Array(19).fill(0),
+  lon = Array(19).fill(0),
+  par = Array(19).fill(0),
+  score = Array(19).fill(0),
+  playON = false;
+
+require("Font7x11Numeric7Seg").add(Graphics);
+
+Graphics.prototype.setFontDroidSansMono52 = function() {
+  // Actual height 52 (53 - 2)
+  // 1 BPP
+  return this.setFontCustom(
+    E.toString(require('heatshrink').decompress(atob('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'))),
+    46,
+    atob("HCQnHCYmKCYmJyYmGw=="),
+    70 | 65536
+  );
+};
+
+Graphics.prototype.setFontDroidSansMono35 = function() {
+  // Actual height 35 (37 - 3)
+  // 1 BPP
+  return this.setFontCustom(
+    E.toString(require('heatshrink').decompress(atob('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'))),
+    46,
+    atob("FBkbFBsaHBobGxsbEw=="),
+    48 | 65536
+  );
+};
+
+var courseData = require("Storage").open("course-data", "r");
+
+var lastFix = {
+  lat: 0,
+  lon: 0,
+  alt: 0, // altitude in m
+  speed: 0, // km/h
+  course: 0, // heading in degree
+  time: 0,
+  satellites: 0,
+  fix: 0,
+  hdop: 0, // x5 ~ meter accuracy
+};
+
+const zeroPad = (num, places) => String(num).padStart(places, '0');
+
+function onGPS(fix) {
+  Object.assign(lastFix, fix);
+  if (lastFix.fix && playON) showPlayData();
+}
+
+function radians(degrees) {
+  return degrees * Math.PI / 180;
+}
+
+function readOneCourseData() {
+  // Clear previous data
+  lat = [];
+  lon = [];
+  par = [];
+  let l = courseData.readLine();
+  courseName = l;
+  // Read one course data & initialize score
+  for (let i = 1; i < 19; i++) {
+    l = courseData.readLine();
+    if (l !== undefined) {
+      const parts = l.split(',');
+      lat[i] = parseFloat(parts[0]).toFixed(6);
+      lon[i] = parseFloat(parts[1]).toFixed(6);
+      par[i] = parseInt(parts[2]);
+      score[i] = 0;
+    }
+  }
+}
+
+function distanceCalc(lat1, long1, lat2, long2) {
+  const distLat = (lat1 - lat2) * 111151.3; // 111151.3 = (2*6368500*pi)/360, 6368500 ~ Earth radius at latitude 42.3°
+  const averageLat = (lat1 + lat2) / 2;
+  const distLong = (long1 - long2) * 111151.3 * Math.cos(radians(averageLat));
+  return Math.sqrt(distLat * distLat + distLong * distLong) / 0.9144; // in yards
+}
+
+function mainMenu() {
+  E.showPrompt("Play now or\n\nView scores?", {
+    title: "Golf GPS",
+    buttons: {
+      "PLAY": 1,
+      "VIEW": 2
+    }
+  }).then(choice => {
+    if (choice === 1) fixGPS();
+    else browseScore();
+  });
+}
+
+function browseScore() {
+  const scoreFiles = require("Storage").list(/^Scorecard-/);
+  if (scoreFiles.length === 0) {
+    E.showPrompt("No score file found.\n\nYou need to play at least a game.", {
+      title: `Error`,
+      buttons: {
+        "END": 1
+      }
+    }).then(choice => {
+      if (choice === 1) load();
+    });
+  }
+  let fileIndx = scoreFiles.length - 1;
+
+  function browseFiles() {
+    const browsefile = require("Storage").open(scoreFiles[fileIndx].substring(0, 18), "r");
+    const l = browsefile.read(80);
+
+    E.showPrompt(l, {
+      buttons: {
+        "<<": 1,
+        ">>": 2,
+        "End": 3
+      }
+    }).then(choice => {
+      if (choice === 1) fileIndx = (fileIndx - 1 + scoreFiles.length) % scoreFiles.length;
+      else if (choice === 2) fileIndx = (fileIndx + 1) % scoreFiles.length;
+      else if (choice === 3) load();
+      browseFiles();
+    });
+  }
+  browseFiles();
+}
+
+function fixGPS() {
+  Bangle.on('GPS', onGPS);
+  Bangle.setGPSPower(1, "golf-gps");
+  E.showMessage("Golf GPS v0.1\n\nWaiting for GPS fix...\n\nwritten by\nJinseok Jeon\n\n ");
+
+  let fixInterval = setInterval(() => {
+    let date = new Date();
+    g.clearRect(0, 150, W, H);
+    g.setFontAlign(1, 1).setFont('6x8:3').drawString(E.getBattery(), W, H);
+    g.setFontAlign(-1, 1).setFont('6x8:3').drawString((date.getHours() > 12 ? date.getHours() % 12 : date.getHours()) + ':' + zeroPad(date.getMinutes(), 2), 2, H);
+    if (lastFix.fix && lastFix.hdop <= 5) {
+      clearInterval(fixInterval);
+      searchCourse();
+    }
+  }, 1000); // Check every second
+}
+
+function searchCourse() {
+  readOneCourseData();
+  if (!courseName) {
+    courseData = require("Storage").open("course-data", "r");
+    E.showPrompt("Scan again\nor quit?", {
+      title: "No course found",
+      buttons: {
+        "SCAN": 1,
+        "QUIT": 2
+      }
+    }).then(choice => {
+      if (choice === 1) searchCourse();
+      else load();
+    });
+  } else if (distanceCalc(lastFix.lat, lastFix.lon, lat[1], lon[1]) < 1000) {
+    Bangle.buzz();
+    E.showPrompt(courseName + "\nIs this correct?", {
+      buttons: {
+        " YES ": 1,
+        " NO ": 2
+      }
+    }).then(choice => {
+      if (choice == 1) {
+        E.showPrompt("Front or Back", {
+          title: courseName,
+          buttons: {
+            "FRONT": 1,
+            "BACK": 2
+          }
+        }).then(choice => {
+          currentHole = (choice === 1) ? 1 : 10;
+          playON = true;
+          showPlayData();
+        });
+      } else searchCourse();
+    });
+  } else searchCourse();
+}
+
+function showPlayData() {
+  let date = new Date();
+  let distanceToHole = distanceCalc(lastFix.lat, lastFix.lon, lat[currentHole], lon[currentHole]);
+  let distanceFromLast = distanceCalc(lastFix.lat, lastFix.lon, latLast, lonLast) || 0;
+
+  g.reset().clearRect(Bangle.appRect);
+
+  // distance to hole in yards
+  g.setColor(g.theme.fg).setFontAlign(1, -1).setFontDroidSansMono52();
+  g.drawString(distanceToHole > 1000 ? ">1k" : distanceToHole.toFixed(0), W - 2, 1);
+
+  // distance from last shot in yards
+  g.setFontDroidSansMono35().setColor('#00f').drawString(distanceFromLast.toFixed(0), W - 2, 70);
+
+  // hole number and par color(red:3, green:4, blue:5)
+  g.setColor(par[currentHole] == 3 ? '#f00' : (par[currentHole] == 4 ? '#0f0' : '#00f'));
+  g.fillRect(3, 3, 47, 47);
+  g.setColor(par[currentHole] == 4 ? '#000' : '#fff').setFontAlign(0, -1).drawString(currentHole, 24, 5);
+
+  // total shots and current shots
+  g.setColor(g.theme.fg).setFontAlign(-1, -1);
+  g.drawString(totalShots, 3, 70); // total shots
+  g.drawString(score[currentHole], 3, 128); // current shots
+  g.setFont("6x8:2").drawString('TOTAL', 3, 54);
+  g.drawString('THIS', 3, 112);
+
+  // clock
+  g.setFontAlign(1, 1).setFont("7x11Numeric7Seg:4").drawString((date.getHours() > 12 ? date.getHours() % 12 : date.getHours()) + ':' + zeroPad(date.getMinutes(), 2), W - 2, H - 4);
+  g.drawString((date.getHours() > 12 ? date.getHours() % 12 : date.getHours()) + ':' + zeroPad(date.getMinutes(), 2), W - 1, H - 3);
+
+  // battery level bar
+  g.setColor('#000').drawRect(59, H * 2 / 3 - 2, W - 5, H * 2 / 3 + 4);
+  g.drawRect(58, H * 2 / 3 - 1, W - 4, H * 2 / 3 + 5);
+  g.setColor(E.getBattery() > 30 ? '#03f' : 'f00').fillRect(60, H * 2 / 3, 60 + E.getBattery() / 100 * (W - 65), H * 2 / 3 + 3);
+
+  // hdop level indicator
+  if (lastFix.hdop < 5) g.setColor('#0f0').fillRect(60, H / 3, 96, H / 3 + 5);
+  if (lastFix.hdop < 2) g.fillRect(100, H / 3, 136, H / 3 + 5);
+  if (lastFix.hdop < 1) g.fillRect(140, H / 3, W, H / 3 + 5);
+}
+
+function finishGame() {
+  let date = new Date();
+  let saveFileContents = ' '; // ALT 255
+  let parTotal = 0;
+
+  Bangle.setGPSPower(0);
+  const saveFilename = `Scorecard-${date.getFullYear()}${zeroPad(date.getMonth() + 1, 2)}${zeroPad(date.getDate(), 2)}`;
+  const saveFile = require("Storage").open(saveFilename, "w");
+  for (let i = 1; i < 19; i++) {
+    saveFileContents += String(score[i] - par[i]).padStart(2, ' ');
+    saveFileContents += (i == 18 ? ' ' : (i % 6 == 0 ? ' \n ' : ''));
+    parTotal += par[i];
+  }
+  saveFile.write(`${date.getFullYear()}_${zeroPad(date.getMonth() + 1, 2)}_${zeroPad(date.getDate(), 2)}\n${courseName}${totalShots}/${parTotal}\n${saveFileContents}`);
+  E.showPrompt(saveFileContents, {
+    title: `${totalShots}/${parTotal}`,
+    buttons: {
+      "END": 1
+    }
+  }).then(choice => {
+    if (choice === 1) load();
+  });
+}
+
+setWatch(() => {
+  playON = false;
+  E.showPrompt("Finish game?", {
+    title: courseName,
+    buttons: {
+      " YES ": 1,
+      " NO ": 2
+    }
+  }).then(choice => {
+    if (choice === 1) {
+      finishGame();
+    } else {
+      playON = true;
+      showPlayData();
+    }
+  });
+}, (process.env.HWVERSION === 2) ? BTN1 : BTN2, {
+  repeat: true,
+  edge: "falling"
+});
+
+Bangle.on('swipe', function(directionLR, directionUD) {
+  if (playON) {
+    currentHole = (currentHole - directionLR) % 18 || 18;
+    score[currentHole] = Math.max(0, score[currentHole] - directionUD);
+    totalShots = Math.max(0, totalShots - directionUD);
+    if (directionUD === -1) {
+      latLast = lastFix.lat;
+      lonLast = lastFix.lon;
+    }
+  }
+});
+
+Bangle.loadWidgets();
+require("widget_utils").hide();
+
+// keep unlocked
+Bangle.setLCDTimeout(0);
+Bangle.setLocked(false);
+
+// keep backlight off
+Bangle.setLCDBrightness(0);
+
+mainMenu();
\ No newline at end of file