Instantly understand food ingredients and safety ratings by scanning barcodes or photos. Get detailed breakdowns of additives, nutrition facts, and personalized alerts for specific dietary needs. Make informed food choices with confidence.
1.3.7
June 26, 2026
bugs fixed
连续自定订阅季度会员
$14.99
年度会员
12个月的会员服务
您好，应用提供免费体验次数是为了让用户在购买前可以了解功能。 我们的食品成分识别与数据库分析需要持续的技术投入和维护，因此对于高频使用场景会通过会员方式提供支持。 同时也有很多用户只是偶尔查询一次食品配料，这部分功能依然可以免费使用。 非常感谢您的体验与反馈，我们也会持续优化产品。
搜索功能正在开发中，后续版本会逐步上线，目前免费版提供基础查询体验（每日1次），会员版开放完整功能和不限次数使用，平台没有广告变现，主要通过会员支持长期运营和数据维护。
免费用户有免费体验次数，会员无限制使用全部功能，是否开通完全自愿，我们不收取商家或广告费用，会员用于支持平台长期、独立运营。
知了's primary function is to help users understand food ingredients, additives, and safety ratings by scanning barcodes or taking photos of food products. It provides a detailed breakdown of what's inside and assigns an A-E safety rating.
Yes, 知了 contains advertisements. Users may encounter ads while using the app's features.
知了 cross-references information with 7 global standards, including US FDA and EU EFSA, and overlays it with WHO/IARC carcinogen classification data for professional additive risk analysis.
Yes, 知了 offers tailored alerts for specific needs such as children's diets, low-sugar requirements, and weight-loss goals, based on the scanned food information.
The app's database is continuously updated and currently covers over 2,300 food additives. The latest version was updated on 2026-06-26.
知了 offers monthly, quarterly, and annual subscription plans. The monthly plan is ¥15 for the first month, the quarterly plan is ¥39, and the annual plan is ¥78.
知了 is supported on iPhone and iPod devices. It has an age rating of 4+.
To cancel your subscription, you need to disable auto-renewal in your Apple ID settings at least 24 hours before the next billing date. Payments are charged to your Apple ID upon purchase confirmation.