512

Heartbeat Mailbox

LiveTechin Park20 apps · 6.5K installsSocialFree · contains adsIn-app purchases: $0.99 - $2.99 per itemcom.tmsae.heartmailbox

Anonymous letters arrive at random. Reply within 24 hours or they vanish.

Alert me★ WatchOpen in Play ↗
Total installs
59
exact · Play shows 50+
Installs / day
+15
7-day avg · last day +30
Rating
—★
— ratings · — reviews
Released
1 Oct 2026
13d ago
Last update
12 Oct 2026
v1.0.16 · 2d ago
Countries
—
not checked yet

Installs per day

gain of the exact counter
025507511 Oct13 Oct14 Oct

Daily tracking since 10 Oct 2026 · history grows every day

Install history

exact counter from Google Play
025507510 Oct12 Oct14 Oct

Daily tracking since 10 Oct 2026 · history grows every day

Change timeline

8 changesFull history
  1. before
    Permissions
    + view Wi-Fi connections+ control vibration
  2. before
    Update date
    11 Oct 202612 Oct 2026
  3. before
    Version
    1.0.15 → 1.0.16
  4. before
    Installs milestone
    0+50+
  5. before
    What's new
    • Letters arrive more often: letters no one opened find their way to people who are waiting • Safer mailbox: inappropriate words and contact details are filtered more carefully before sending • Read alerts: get notified …• Letters even with notifications off: just open the app to receive letters from strangers • Letters arrive more often: letters no one opened find their way to people who are waiting • Safer mailbox: inappropriate words …
  6. before
    Update date
    10 Oct 202611 Oct 2026
  7. before
    Version
    1.0.14 → 1.0.15
  8. before
    What's new
    • Safer mailbox: inappropriate words and contact details are filtered more carefully before sending • Read alerts: get notified when someone opens your letter, and see Read ✓ in your sent letters • When you use your last…• Letters arrive more often: letters no one opened find their way to people who are waiting • Safer mailbox: inappropriate words and contact details are filtered more carefully before sending • Read alerts: get notified …

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 14 Oct

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

  1. South Korea100%#23 Trending · Social

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 14 Oct
ChartCountryRankChange
Top new free · Social KR#7▼ 2
Trending · Social KR#23▼ 5
Top new free · Social HK#150▼ 11
Top new free · Social MO#151▼ 11
Top new free · Social BY#162▼ 14
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Show all 60 chart positions

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
  • Collects data Personal info, Financial info and 3 others
  • Data is encrypted in transit
  • You can ask for your data to be deleted

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

8 in 2 groups
0 Sensitive1 Notable7 Routine
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
OtherNotable7

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

  • Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
  • 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
  • Make your phone vibratecontrol vibration · VIBRATE
  • Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE
  • Read Google service settings stored on your deviceread Google service configuration · com.google.android.providers.gsf.permission.READ_GSERVICES
  • 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

Screenshot 1 Download
Screenshot 2 Download
Screenshot 3 Download
Screenshot 4 Download
Screenshot 5 Download
Screenshot 6 Download
Full description
Heartbeat Mailbox is an anonymous letter app where letters from strangers arrive at random. 💌 Your mailbox bounces when a letter arrives Open the envelope and read a stranger's day. You never know who sent it. ⏳ Reply within 24 hours, or it disappears If a letter touches your heart, send a reply. It goes straight back to the writer. ✏️ Send your own letter Pick a cute letter paper and send a warm note to someone out there. We'll let you know when someone replies. 🌙 Take a break anytime Pause receiving letters for today, 3 days, 7 days, or until you turn it back on. 🎟️ Stamps One letter needs one stamp. Free stamps refill every day, and you can get more by watching an ad or buying a stamp pack. Subscribe to Premium for unlimited stamps. 🔐 A safe mailbox • Insults, sexual content, phone numbers, links and messenger IDs can't be sent • Report and block upsetting letters instantly — our team reviews reports within 24 hours • No sign-up needed. Log in with Apple or Google if you want to keep your letters Available in 17 languages. You exchange letters with people who speak your language.

What's new

• Letters even with notifications off: just open the app to receive letters from strangers • Letters arrive more often: letters no one opened find their way to people who are waiting • Safer mailbox: inappropriate words and contact details are filtered more carefully before sending • Read alerts: get notified when someone opens your letter, and see Read ✓ in your sent letters • When you use your last stamp, we'll show you how to get one more

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