App Intel

Good Lock : Custom Lock Screen

LiveheyUp (Good Lock)1 app · 3.4M installsPersonalizationFree · contains adscom.sonjoon.goodlock

Original Good Lock: Aesthetic lock screen widgets, wallpapers, clock, calendar.

Alert me★ WatchOpen in Play ↗
Total installs
3,411,074
exact · Play shows 1,000,000+
Installs / day
+294
since last crawl
Rating
3.0★
3.8K ratings · 170 reviews
Released
15 Mar 2015
11.6y ago
Last update
11 Oct 2026
v3.5.627 · 1d ago
Countries
—
not checked yet

Install history

exact counter from Google Play
3.4M3.8M4.2M4.6M5M10 Oct11 Oct12 Oct
3.4M3.8M4.2M4.6M5M10 Oct11 Oct12 Oct

Installs per day · last 90 days

012525037550011 Oct12 Oct12 Oct11 Oct: 29412 Oct: 0

Change timeline

2 changes
  1. Update date
    8 Oct 202611 Oct 2026
  2. Version
    3.5.626 → 3.5.627

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

estimate · charts of 12 Oct

Most downloads likely come from 🇰🇷 South Korea (~100%).

  1. South Korea100%#44 Top free · Personalization

Estimated from top-chart positions weighted by each country’s Google Play market size. Countries where the app is not in a chart are not shown, so small markets may be missing.

Top chart positions

as of 12 Oct
ChartCountryRankChange
Top free · Personalization KR#44▲ 4

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Manifest analysis reads only the required APK ranges. Base APK downloads may need separate device splits to install.

Data safety

declared by the developer on Google Play
  • Shares data with third parties Device or other IDs
  • No data collected
  • Data is encrypted in transit
  • No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

22 in 6 groups
10 Sensitive4 Notable8 Routine

What this app can do with your phone

  • See every contact saved on your phone, including names, numbers and emails
  • Add, change or delete contacts saved on your phone
  • Read photos, videos, and other files saved in your phone's shared storage
  • Add, change or delete photos, videos and other files in your phone's storage
  • See all events in your calendar, including details like guests, places and notes
  • Show its own windows or bubbles on top of other apps you are using
CalendarSensitive1

Access to your calendar events and their details

  • See all events in your calendar, including details like guests, places and notesread calendar events plus confidential information · READ_CALENDAR
ContactsSensitive2

Access to the contacts saved on your phone

  • See every contact saved on your phone, including names, numbers and emailsread your contacts · READ_CONTACTS
  • Add, change or delete contacts saved on your phonemodify your contacts · WRITE_CONTACTS
Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
StorageSensitive2

Access to files, photos and media saved on your phone's storage

  • Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
  • Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE
Wi-Fi connection informationRoutine1

Access to details about Wi-Fi networks your device sees or uses

  • See whether Wi-Fi is on and details of the network you are connected toview Wi-Fi connections · ACCESS_WIFI_STATE
OtherSensitive14

Access to miscellaneous device features that don't fit other categories

  • Show its own windows or bubbles on top of other apps you are usingdraw over other apps · SYSTEM_ALERT_WINDOW
  • Change device settings like screen brightness, ringtone or screen timeoutmodify system settings · WRITE_SETTINGS
  • See which apps you use and how often, if you allow usage accessupdate component usage statistics · PACKAGE_USAGE_STATS
  • Temporarily turn off your screen lock, for example to show an incoming calldisable your screen lock · DISABLE_KEYGUARD
  • Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • Change or delete photos, videos and files in your phone's internal media storagemodify/delete internal media storage contents · WRITE_MEDIA_STORAGE
  • Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
  • Connect to the internet to load content and send datafull network access · INTERNET
  • Change your phone's home screen or lock screen wallpaperset wallpaper · SET_WALLPAPER
  • Make your phone vibratecontrol vibration · VIBRATE
  • Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE
  • Set how your wallpaper is sized on screenadjust your wallpaper size · SET_WALLPAPER_HINTS
  • Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description
Good Lock is a free lock screen app you can use on any Android phone in place of the default lock screen. Combine aesthetic wallpapers with clock, calendar, schedule and music widgets to build your own lock screen theme, and use your schedule, memos and music right away, without unlocking. Unlock Good Lock and go straight to the fingerprint, PIN or pattern set on your phone - no stop at the default lock screen. Your phone's own lock stays in place, so it's safe to use. First released on March 15, 2015, Good Lock has been built and run by a single independent developer for 11 years. No account sign-up is required. The lock screen and Mini Home carry no ads; ads appear only on the settings pages. ※ Not affiliated with Samsung Electronics. This app only shares a name with Samsung's Good Lock (released in March 2016). ※ Works on Galaxy and non-Galaxy phones alike, regardless of manufacturer. ✨ Create Your Own Style: Aesthetic Phone Customization - Download over 1,200 wallpapers for free and combine them with practical widgets to build a one-of-a-kind lock screen theme. - New high-resolution wallpapers added every week. - Use your own photos and videos as wallpaper, and style them with a variety of filters. ⚡ Instant Access Without Unlocking - Clock widget: a wide range of stylish clock designs to match your theme. - Calendar & schedule widget: see your monthly calendar and upcoming events at a glance, without unlocking. - Music player widget: play your favorite music and view real-time lyrics directly from the lock screen. - Quick memo: write down an idea, check an important note, and edit it on the spot. - Tok Tok shortcuts: double-tap the lock screen to instantly launch a pre-configured favorite app. 🏠 Your Personal Quick Launcher: Mini Home - Keep your frequent contacts, favorite apps, bookmarks and memos in one place and launch them instantly. Swipe up from the bottom of the lock screen to open it. 🔒 Lock & Security - Good Lock has no lock of its own; it uses your phone's lock. - Memos, calendar and lyrics work without unlocking; apps, bookmarks and contacts open only after you unlock your phone. - No lock set? Unlocking Good Lock takes you straight to your home screen. ------------------------------- 📜 Since 2015 - An 11-Year Journey as the Original Independent Good Lock - You may see it written as Good Lock, GoodLock or Goodlock. The official name is "Good Lock" - a blend of "Good" and "lock screen". Your phone starts at the lock screen, so the name also wishes you good luck each day. - Often confused with a same-name service from March 2016, Good Lock started a year earlier and has always run independently. - Progress slowed for a while due to limited resources; lately I have used the latest AI tools to improve stability and performance myself. - There is no flashy marketing here - just a lone developer's persistence. Leave your thoughts in a review and I will reflect them in the next update. Thank you. ------------------------------- [Required Permission] - Display over other apps (Overlay): required to show the lock screen. [Optional Permissions] - Contacts: to import contacts into Mini Home - Music and Audio: to load local music files for the music widget - Calendar: to show Google Calendar events - Notifications: to create a status notification bar * Optional permissions are requested only for the matching feature; everything else works if you decline. * You can change permissions any time in Settings > Apps > Good Lock > Permissions. [Privacy] - No sign-up, so no personal data such as your name or email is collected. - Contacts are used only for Mini Home and never sent to or stored on a server. - What you set up and write stays on your phone and is removed when you uninstall the app. - To keep the app free, it includes ads. Ad providers may collect your device's advertising ID for ad delivery. [Android Version] - Works on Android 6.0 and above.

What's new

⚡ One less step to unlock. Go straight from Good Lock to fingerprint or pattern — no default lock screen. ✨ Your own video as a lock screen background. 🎨 Redesigned photo & video filters. 🔧 Bug fixes and stability improvements.

Growing in Personalization

Category →