Improvements made to Ver 2.0.0: [New] • Contact support directly from the app. Your activity log is attached automatically, so you no longer have to describe what happened step by step • Attach up to 3 screenshots to your inquiry. You can add, replace, or remove them one at a time • Reach support from the first screen or from an error message, even when you cannot sign in [Improvements] • Simplified referral code sharing — send it straight from a share button • Added an explanation of activity logging to the privacy policy • An inquiry can no longer be sent without choosing a category • Secure your account (backup) now explains what a backup code does and does not restore [Fixes] • Fixed diving tickets and Diving Pass expiry showing the wrong value after switching accounts • Fixed account details sometimes not being shown • Fixed being sent back to the account selection screen when the connection was unstable • Fixed the dive button and the top of the home screen being cut off on smaller devices • Fixed "Information & Terms" in the menu not scrolling to the end • Fixed the keyboard not closing and the send button being hidden while writing an inquiry • Fixed account backup codes sometimes failing to be issued depending on how many items you own • Clearer message when an item purchase does not complete

Improvements made to Ver 1.5.5: [New] • No sign-up required — open the app and start crypto diving right away • Added "Manage accounts": keep up to 5 accounts on one device and switch between them with a tap • Added transfer codes (QR) for changing devices, adding a device, or keeping a backup. Your discovered crypto and purchased items move with your account • Added a tutorial for new divers, and you can now enter a referral code later by scanning a QR code [Improvements] • Redesigned the home screen so your estimated reward, points, and rank are easier to see • Split the points screen into "Total points" and "Your rank" for a clearer breakdown • Clearer guidance when your account has been used on another device, with an option to start using it again on this device [Fixes] • Fixed a rare crash right after launch • Fixed points and rank sometimes showing incorrect values after switching accounts • Fixed unused diving tickets and diving passes being lost when changing devices • Adjusted the layout on iPad

Improvements made to Ver 1.5.4: [Improvements] • Improved stability of in-app purchases You can now purchase the same item again even while a previous purchase for it is still under review. If a purchase ever fails to complete after a long time, you can now check its status and remove it from your item list. • Fixed a rare issue where bonus point registration could display an incorrect value

Improvements made to Ver 1.5.3: [New Feature] • Added a Bitcoin payout request screen Select a wallet to receive your rewards in Bitcoin. You can also enter the destination address by scanning a QR code. *Actual Bitcoin transfers won't be enabled until the password for the selected wallet is found. [Improvements] • Improved app stability

We have implemented the following improvements in Ver 1.5.2: ・Fixed a bug that caused an error when using owned items. ・Changed part of the home screen layout.

We have fixed the following issues in Ver 1.5.1. ・Fixed the issue where an "Unknown Item" was created when switching accounts. ・Corrected some text in the item description screen. ・The content of the error message has been partially changed.

We have added the following new features and improvements in Ver 1.4.9: ・A new item, "Ruin Fragment," can now be excavated. ・Added a visitor registration function for event participants. ・Fixed a bug where negative values were incorrectly displayed in the Crypt Synthesis feature.

We have applied fixes and improvements for the following issues in Ver1.4.8: ・Fixed incorrect display of negative bonus points. ・Resolved the issue where the displayed crypto image did not match its name. ・Changed the English name of the top-tier crypto to “The rarest crypto”. ・Fixed the bug where the “Use item?” confirmation was shown when no diving item is possessed.

We have made the following improvements and fixes for version 1.4.7: ・Fixed the issue where crypto selection was not possible during crypto synthesis on iPhone 8 (iOS 1.7 and below). ・Extended the unlimited crypto synthesis campaign period by 2 days. ・Added a banner message to the crypto synthesis feature. ・Fixed the bug where bonus points for some cryptos were displayed as negative.

We have updated to Ver 1.4.6 with the following additions and improvements: ・Fixed the issue where purchased items were not reflected correctly. ・Added a synthesis function for discovered crypts. ・Changed some message content.

We have applied the following change to ver1.4.5: ・Partially modified the message content related to salvage requests.

We have applied the following fix to Ver1.4.4: • Partially modified the required data check when submitting a salvage request.

The following improvements have been made in Ver1.3.3: ・Salvage request function has been added. ・Some error messages and other texts have been changed.

Fixed the following issues: ・In Profile View, fixed so that deleted buddy accounts are no longer displayed. ・In Profile View, fixed so that deleted introducer accounts are no longer displayed.

We have applied the following fix to Ver1.4.1. Fixed the bug where the total points did not match the sum of the detailed points. The total points now correctly match the sum of the detailed points.

The following improvements have been made compared to Ver 1.4.0: ・Grouped the crypts discovered by drones by item icon. ・Changed some message contents. ・Improved the SEED search processing. ・Fixed the bug where the total points were displayed as a negative number.

The following improvements have been made to Ver1.3.11: ・Fixed error messages ・Adjusted retry interval for communication errors

Fixed the following bugs that occurred in Ver1.3.10: ・Addressed an issue where the app failed to connect properly to the server when checking total points, etc. 　Connection errors caused by the content or volume of the data will be resolved by updating. ・Corrected typos in messages.

The following improvements and bug fixes have been made for Ver1.3.9: ・Enabled downloading of cryptids discovered by the drone for each selected wallet. ・Fixed a bug that caused abnormal termination when checking points for the second wallet.

We have implemented emergency fixes for the following bugs that occurred in Ver1.3.8 ・Fixed an issue where the number of diving tickets for newly added wallets was not reflected correctly. ・Fixed an issue where unknown crypto discovered in a newly added wallet was being stored in an existing wallet.

Starting November 23, 2025, a new salvage wallet will be added. The following features have been implemented in this version:You can now select which wallet to analyze. (Operational from 11/23) ・Analyzed points are now managed separately for each wallet. ・New diving items added: Crypto Drone x11, x33, and x67 ・Crypto discovered by drones, previously combined per drone type, will now be separated by individual drone unit. ・Some background images have been updated. ・You can now select your region in your profile.

The following changes were made in Ver1.3.6: ・Modified the content of some error messages. ・Added support for logging during failures.

For Ver1.3.5, we implemented the following measures and improvements: ・Enhanced security (strengthened communication security between app and server) ・Supported saving of in-use items (diving tickets/ diving pass) on logout and recovery on other devices ・Other minor message corrections

We have made updates to support the new salvage server. The number of SEED distribution servers has been increased to nine. Additionally, we have revised message texts and made other changes.

We urgently addressed the following issues in Ver1.3.3: ・Resolved frequent server connection errors. ・Adjusted the timeout value for server connections. ・Fixed the wording of some error messages.