🌐 This site supports Yostar's EN, JP, and KR servers. Click here for TW Server or CN Server (External).

✨ Android users can install our Exclusive APP, and PC users can install the Browser Extension for one-click record extraction.

Method 2 is for querying records already stored on this site. If you don't have any, you need to fetch or upload them first. Here are the instructions for Method 1 (Web Fetch): (Browser DevTools required)
Please login to JP Official Site, EN Official Site or KR Official Site, use F12 DevTools, then under "Application" -> "Cookie", find the values of "YSSID" and "YSSID.sig" and fill them in.

This website will NOT keep your cookies. It's only used as a temporary credential to fetch gacha records from official servers. The credential is destroyed immediately after use and never stored persistently. To avoid any risks, we recommend logging out of the official website after fetching.

This site is a custom-built gacha record export, analysis and visual statistics tool for Arknights players on Yostar's EN, JP and KR servers. You can fetch your gacha history from the official site or import your past records, with end-to-end support for importing, fetching, merging, caching and exporting backups of your data.

Main features include:
• Statistical Analysis: Automatically calculates the accumulated pity count for each pool category (Standard, Kernel, Limited) and the average 6-star rate, with colourful distribution charts.
• Data Management: Once fetched, your records can be imported, exported, backed up, overwritten or cleared at any time in JSON format, keeping your data safe.
• Cross-Platform Support: Update and view your data easily through several sign-in methods — website, browser extension, app, JSON import, or UID lookup.

1: This site does not guarantee the accuracy or completeness of any data. Records here may be cleared at any time without prior notice, so please export and back up your records regularly. If you need to delete your records, use "Method 3: JSON" to upload a blank file.

2: Note that due to Method 2, anyone can access your records here using your UID. Delete your records timely if concerned.

3: Note that due to Method 3, anyone can overwrite your records here using your UID. Please export timely.

4: To merge past records during a fetch, first use "Method 3: JSON" to upload your previous visit_logs.json, log out, then fetch again with any method. "Method 2: UID" can also be used to check whether your past records still exist and are complete.

1: This project is not affiliated with, endorsed by, or authorized by the game's developers or publishers (including but not limited to Hypergryph, Longcheng, Ariel, Yostar, or Studio Montagne).

2: Anyone using this site does so entirely at their own risk. The author does not guarantee that use of this site will not violate the terms of service of any organization or the laws and regulations of any jurisdiction; does not guarantee that use of this site will not result in the disclosure of personal data; accepts no liability for any loss arising from use of this site; and makes no implied warranty of any kind.

3: This site is strictly for academic research and personal use. Any commercial use or resale is prohibited.

4: All game images, animations, audio, original text, styles, visual designs and portions of the layout used on this site are included solely to better present the game data. Their copyrights belong to Shanghai Hypergryph Network Technology Co., Ltd., Longcheng Network Co., Ltd., Ariel Co., Limited, GRYPH FRONTIER PTE. LTD., or their affiliated companies.

The Traditional Chinese version of these terms and notices is the authoritative version. In the event of any discrepancy between language versions, the Traditional Chinese version shall prevail.