# 查查不锈 — Checkinox

> Checkinox (iPhone/iPad app by 淼 唐.)

- Source: https://appshunter.io/ios/app/id6754522140 (this page in markdown: same URL + `.md`)
- Developer: [淼 唐](https://appshunter.io/developer/1848570346)
- Category: Utilities
- Price: Free (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 15.1 · 50 MB
- Languages: American English
- Released: 2025-11-05
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/id6754522140/reviews.md

## What is 查查不锈?

查查不锈是一款面向工程师、采购与质检的钢材牌号查询与对比工具。覆盖ASTM、EN、JIS、VDM、Nippon等数据库，支持按UNS、材质号、牌号多维检索，成分与力学性能清晰呈现，跨标准对应关系智能匹配。离线可用，界面简洁，上手迅速；收藏与最近查看助力高效决策，数据持续更新可追溯。


## Version history (last 5 releases)

### 1.7.8 — 2026-03-02

新增ICP和公安备案号。

### 1.2.9 — 2026-02-03

更加简洁，更加高效。

### 1.1.2 — 2025-11-26

新增几个标准和主题切换。

### 1.1.1 — 2025-11-07

新增俄罗斯牌号

### 1.0 — 2025-11-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-17.*