Archived App (Last seen on 21 Mar 2025)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Access a comprehensive collection of accurate and well-presented formulas and theorems. Sync your learning progress across devices for continuous study. The content is extensive and will be continuously expanded.
What's New in 知道
6.1.9
March 20, 2024
1、ui细节修复
In-App Purchases
$0.99
包月会员
去除广告，学习更流畅
FAQ
What is 知道?
知道 is a reference application that provides accurate, standardized, and aesthetically pleasing formulas and theorems. It also offers cross-device data synchronization and study planning features.
What kind of content does 知道 offer?
知道 offers a rich collection of formulas and theorems across various subjects. The developers plan to continuously add more content to the app in the future.
Can I use 知道 on multiple devices?
Yes, 知道 supports cross-device data synchronization, allowing you to access your learning progress and notes from any of your supported devices.
Is 知道 free to use?
Yes, 知道 is free to download and use. It also includes in-app purchases for additional features or content.
Does 知道 have ads?
Yes, 知道 contains advertisements to support its free service.
What devices is 知道 compatible with?
知道 is available for iPhone, iPad, and iPod devices.
How often is 知道 updated?
The latest version of 知道 is 6.1.9, and it was last updated on March 20, 2024. Updates are released regularly to improve the app and add new content.
What is the age rating for 知道?
知道 has an age rating of 4+, making it suitable for a wide range of users.
