Notices

Service announcements and changes to our legal documents are posted here. We publish policy changes at least seven days before they take effect, and thirty days ahead for changes that materially affect your rights.

  1. Terms & Privacy

    Privacy Policy update (Haejullae family sharing and notifications, Remove Ads coupons)

    The app com.hj.pushbin has changed from the notification archive Pushbin to the family to-do and shopping app Haejullae (해줄래), so we are revising our Privacy Policy. The revision is dated 31 October 2026 and takes effect on 7 November 2026.

    • Family sharing — if you create or join a family space, to-dos in shared groups, routines you share with their checks from the last 35 days, the shopping list, reactions and member names are stored on our management server and visible to the family in that space. Deleting a space removes them immediately, and a space no member has used for 12 months is deleted automatically.
    • Family notifications — when a family member completes a to-do or asks you to do one, we notify you through Firebase Cloud Messaging (Google). We store the device's push token, and the text contains the member's nickname and the first 30 characters of the to-do title. You can turn this off in the app or device settings.
    • Remove Ads and coupons — Google Play handles Remove Ads payments in Haejullae and PushBin (To-dos & Routines). Redeeming a coupon stores the coupon code and an anonymous installation ID on our management server.
    • Analytics and ads — Haejullae uses Firebase Analytics and Google AdMob banner ads.
    • Removed — the former app's statement that notification content is processed only on the device, and the notification access guidance. The current app does not read other apps' notifications.

    If you do not use a family space, your to-dos and records stay on your device as before. To delete shared data, leave or delete the space in the app, or email manager@eurion.co.kr. See the Privacy Policy for details.

  2. Terms & Privacy

    Privacy Policy update (PushBin usage statistics, quote of the day)

    Our to-do and routine app PushBin (com.slb.salimbutton) now collects usage statistics, so we are updating the parts of our Privacy Policy that cover it. The policy was revised on 26 October 2026 and the revised version takes effect on 2 November 2026. Entries for our other apps are unchanged.

    • Anonymous installation ID records — to count how many people use and install the app each day, once a day when you open it the app sends a random installation ID created on first launch, together with the app version, to our management server. No name, advertising ID or to-do content is sent, and the server records are deleted automatically 13 months after the last access.
    • Firebase Analytics — in-app actions such as app opens, time spent and tab and screen changes are counted anonymously. No name, email or to-do content is included.
    • Quote of the day — the daily affirmation has been replaced by quotes built into the app, so the affirmation set is no longer fetched from the management server. The Today's News tab still fetches only news and AI news summaries.
    • Ad placement — besides the bottom of the Settings screen, a banner ad now also appears below the to-do list on the Today home screen.
    Privacy Policy
  3. Service

    ZEKILO Studio and Dev move to zekilo.com

    The file tools ZEKILO Studio (studio.zekilo.com) and the developer tools ZEKILO Dev (dev.zekilo.com) now live together with the calculators on one domain, zekilo.com.

    • Studio, 22 file tools — zekilo.com/en/studio/ (also /ko/studio/ and /ja/studio/)
    • Dev, 20 developer tools — zekilo.com/en/dev/ (also /ko/dev/ and /ja/dev/)
    • 27 calculators — zekilo.com/ko/ (Korean) and zekilo.com/ja/ (Japanese)
    • The old studio.zekilo.com and dev.zekilo.com addresses redirect automatically, so existing bookmarks keep working.

    Inputs and files are still processed in your browser and never uploaded. ZEKILO's privacy policy and terms are published on zekilo.com; the privacy policy on this site does not apply to ZEKILO.

    Visit zekilo.com
  4. Service

    Chip Match is now Cyber Pinball: Semi Core

    The physics merge puzzle Chip Match: Cyber Merge Puzzle has become the aim-and-shoot physics pinball puzzle Cyber Pinball: Semi Core. It is the same app (com.cybermerge.cyber_merge_chip), so just update it on Google Play.

    • Launch packets from the top, bounce them off nodes, and catch them again with the moving catcher to purify infected circuits.
    • 110 circuits across 10 sectors, core bosses and backdoor mini-games, plus Deep Scan, Infection Alert, Daily Circuit, and Core Rush.
    • The original merge puzzle is still playable in the app as Classic.
    • Available in English, Korean, and Japanese, with no sign-in and no internet connection required.
    • Data deletion requests now use the support code in the app settings (how to request).
    About Cyber Pinball
  5. Service

    ZEKILO calculator site now open

    We have opened ZEKILO (zekilo.com), calculators and converters for users in Korea and Japan. From discounts, VAT, exchange rates, units, and dates to take-home pay, loan interest, and annual leave, it offers 27 tools and 37 guides in Korean and Japanese. It is free, needs no installation or sign-up, and runs calculations in your browser, so your inputs are never sent to a server.

    ZEKILO's privacy policy, terms, and advertising information are published separately on zekilo.com. This website's Privacy Policy does not apply to ZEKILO.

    Go to zekilo.com
  6. Legal

    Privacy Policy update (PushBin rename, ads, Today's News, voice input)

    Our to-do and routine app SalimButton (com.slb.salimbutton) has been renamed PushBin and has gained new features, so we are updating the parts of our Privacy Policy that cover it. The policy was revised on 27 September 2026 and the revised version takes effect on 4 October 2026. This is a different app from Pushbin (com.hj.pushbin), our notification archive and spending tracker, whose entries are unchanged.

    • New name — to avoid confusion with Pushbin, the policy refers to it as “PushBin (To-dos & Routines)” and gives its former name, SalimButton, and its package name. The package name does not change.
    • Ads (Google AdMob) — a banner ad now appears at the bottom of the Settings screen, and the ad SDK sends the advertising identifier, device and network information and similar data to Google and its advertising partners. Your to-dos and records are not passed to the ad SDK, and you can reset or delete your advertising ID in your device settings.
    • Today's News (news and affirmations) — when you open or refresh the Today's News tab, the app fetches news, an AI news summary and the daily affirmation from our management server. The requests carry nothing that identifies you, and the server's access logs (such as IP addresses) are deleted within six months. If the management server does not respond, the app fetches news lists directly from Google News RSS.
    • Voice input — when you dictate a to-do with the microphone button, the app uses your device's speech recognition service. The app does not store recordings or send them to us.
    • Earlier statements corrected — we removed the “no internet permission, no ads, no transmission” wording. Your to-dos and records are still stored only on your device and never sent to our server.
    • Website hosting — the website is now hosted on Cloudflare Pages, so Cloudflare's role in the policy changes from “delivery of style resources” to “website hosting and delivery”. The website still uses no cookies or analytics.
    Privacy Policy
  7. Legal

    Privacy Policy update (device information and error reports)

    To fix Hacker Cat: Idle Action RPG running slowly or failing to finish its first battle on some devices, we are updating our Privacy Policy. The revised policy takes effect on 1 October 2026; the information below is not collected before then.

    • Device information — usage records on our server will include the device model, OS version, memory size, the device's language and region settings and battle screen update speed. Deleted automatically after 90 days.
    • Error reports (Firebase Crashlytics) — when the app crashes or hits an error, it sends the error, device state, app version and an anonymous installation identifier. No name, email or nickname. Deleted automatically after 90 days.
    Privacy Policy
  8. Legal

    Terms of Service update (paid items, withdrawal and refunds)

    Hacker Cat: Idle Action RPG now sells the paid item "Remove Ads", so we have added terms on purchases, withdrawal and refunds. The revised Terms take effect on 27 September 2026.

    • Purchasing paid items (new Article 12) — bought through Google Play billing and re-applied with "Restore purchases" after reinstalling or changing device. Purchases by minors without a guardian's consent can be cancelled.
    • Withdrawal (new Article 13) — you may withdraw within 7 days of purchase. "Remove Ads", which takes effect immediately, may be excluded by law, but only if we state this on the purchase screen.
    • Refunds (new Article 14) — request from Google Play within 48 hours of purchase, otherwise email manager@eurion.co.kr. Valid requests are handled within 3 business days of confirmation and refunded items are revoked. Overcharges are refunded in full, and we give 30 days' notice before ending a service.
    • Ads and progress (Articles 10 and 11) — we describe what "Remove Ads" does, and that progress cannot be recovered after reinstalling unless you are signed in to Play Games. Former Articles 12 and 13 are now Articles 15 and 16.
    Terms of Service
  9. Legal

    Privacy Policy update (Hacker Cat accounts, purchases and deletion)

    We have updated the Privacy Policy to match what Hacker Cat: Idle Action RPG actually processes. The revised policy takes effect on 27 September 2026.

    • Google sign-in removed — the app no longer offers Google sign-in, so we no longer receive an email address, Google account identifier or display name.
    • Anonymous account and automatic ranking — an anonymous account with no name or email is created automatically on first launch; progress, nickname and ranking record are stored on our server, and you take part in the in-game ranking automatically.
    • Play Games player ID — if you are signed in to Play Games, we link your player ID to your account so your progress can be restored after reinstalling or changing devices.
    • In-app purchase records — we process the records needed to verify “Remove Ads” purchases and to grant, restore or revoke the entitlement, and keep them for five years under Korean consumer protection law. We never receive card numbers or other payment details.
    • Server usage records: 90 days — app usage records on our server are deleted automatically after 90 days.
    • Account deletion by email — instead of an in-app delete option, send your request to manager@eurion.co.kr with the account code shown on the “Account” card in the app's Settings.
    Privacy Policy Account deletion notice
  10. Legal

    Privacy Policy update (Hacker Cat notifications)

    We plan to add device notifications to Hacker Cat: Idle Action RPG — when idle rewards are full, when the daily supply arrives, and come-back reminders. Notifications are scheduled and shown on your own device only if you allow them, and nothing is sent to our server to deliver them. Ahead of that, the Privacy Policy now covers the data involved, the purpose and retention, how to turn them off, and the night-time limit. The revised policy takes effect on 23 September 2026; the feature itself will arrive in an app update after that date.

    Privacy Policy
  11. Legal

    Privacy Policy update (Salim Button added)

    Our new mobile application Salim Button (com.slb.salimbutton) is now covered by the Privacy Policy. It has no ads and no accounts, and runs without the internet permission, so your tasks and records never leave the device. We also updated the per-app data table and added how its backup files are handled. The revised policy takes effect on 23 September 2026.

    Privacy Policy
  12. Service

    Hacker Cat: Idle Action RPG is live on Google Play

    Our second game, Hacker Cat: Idle Action RPG, is now on the Google Play Store. The hacker cat NyanCode clears arenas on its own. It plays without an account, cloud save and leaderboards are optional, and it is free with ads.

    Get it on Google Play
  13. Legal

    Privacy Policy and Terms updated for worldwide release

    Now that our apps are distributed worldwide, we have rewritten the Privacy Policy to cover the GDPR, the UK GDPR, and the CCPA/CPRA, and added disclosures on advertising, optional sign-in, processors, and international transfers. The Terms of Service gain clauses on advertising, in-game items, and international use. Both take effect on 7 September 2026.

    Privacy Policy Terms of Service
  14. Service

    Chip Match: Cyber Merge Puzzle is live on Google Play

    Our first title, Chip Match: Cyber Merge Puzzle, is now on the Google Play Store. Drop chips, merge matching tiers, and keep the stack below the danger line. It is free with ads, plays without an account, and keeps your high score on the device.

    Get it on Google Play
  15. Notice

    Website reorganised around our products

    The site previously covered a single app. It now lists every product we are building, with a page for each and a shared status page.

About these notices

  • Privacy Policy changes are announced here at least seven days before they take effect.
  • Changes to the Terms of Service are announced seven days ahead, or thirty days ahead where they are unfavourable to users.
  • Questions about anything posted here go to manager@eurion.co.kr.