Privacy Policy

Last updated: 9 October 2026

This policy explains how Coastal Defense - Sea Monster ("the app"), made by ISEMI Company Limited ("ISEMI", "we"), handles your information. The short version: the app does not collect any personal data.

Information we collect

We do not collect, store or share any personal data. The app has no accounts, no sign-in, no analytics, no advertising and no third-party tracking, and it does not send any data to us or to anyone else.

In-app purchases

The app offers optional in-app purchases. They are processed entirely by Apple through the App Store; we never see your name, Apple ID, card or other payment details. When a purchase completes, Apple tells the app which item was bought and gives it a transaction ID. The app keeps that ID on your device only, so each purchase is delivered exactly once. Restore Purchases asks Apple for the purchases made with your Apple ID; nothing is sent to us.

Reminders

If you allow notifications, the app schedules reminders on your device (for example when your idle rewards are ready). They are local notifications: no push server is involved and nothing is sent to us. You can turn them off in the game's Settings or in iOS Settings at any time.

Data stored on your device

To remember your progress, the app keeps a save file on your device: levels cleared, heroes, items, settings (such as language, music and sound) and similar game state. This file never leaves your device through the app. It may be included in the backups your device makes (for example iCloud Backup), which are handled by Apple under your own settings. The record of your purchases is kept in the same file. Deleting the app deletes this data.

Permissions

The only permission the app may ask for is to send notifications, for the optional reminders above. It does not ask for access to your location, contacts, photos, camera, microphone or any other personal information on your device.

Children

Because the app does not collect personal data from anyone, it does not collect personal data from children.

Changes to this policy

If a future version of the app changes how it handles data — for example by adding advertising or analytics — we will update this policy before that version is released and change the date at the top of this page.

Contact

ISEMI Company Limited, 23 Duong T4A, Tay Thanh, Tan Phu, Ho Chi Minh City, Vietnam. Email: company@isemi.io.