Heartbeat Mailbox

By: Techin Park App

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

Overview

Google Play Store

Data as of 2026-10-27

Version:

1.0.18

Last updated: 2026-10-15

#1,905,328 ▲ 237,611

Features & Capabilities

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.

User Growth & Download Statistics

App

By:

Downloads:

Version:

1.0.18 Last updated: 2026-10-15

Version code:

22

Creation date:

2026-10-01

Publisher country:

KR

Permissions:

com.google.android.gms.permission.AD_ID Moderate risk
android.permission.ACCESS_ADSERVICES_AD_ID Low risk
android.permission.ACCESS_ADSERVICES_ATTRIBUTION Low risk
android.permission.ACCESS_ADSERVICES_TOPICS Low risk
android.permission.ACCESS_WIFI_STATE Low risk
android.permission.FOREGROUND_SERVICE Low risk
android.permission.INTERNET Low risk
android.permission.POST_NOTIFICATIONS Low risk
android.permission.USE_BIOMETRIC Low risk
android.permission.USE_FINGERPRINT Low risk

Size:

34.30MB

Email:

tm*****@gmail.com

Website:

https://heart-mailbox-2610.web.app/ DR 0

Privacy policy:

https://heart-mailbox-2610.web.app/privacy.html

Full description:

Source:

Google Play Store

Data ingested on:

2026-10-27

Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:: Techin Park
Google Play Store: https://play.google.com/store/apps/details?id=com.tmsae.heartmailbox
Email:: tm*****@gmail.com
Website:: https://heart-mailbox-2610.web.app/

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