Period Cal

Period Calendar is a minimalist, secure, and smart menstrual health application that keeps all your data private on your device. Designed with your privacy as the core principle, this intuitive tool helps you track and understand your menstrual cycle with powerful features that work entirely on your device without compromising your personal information.

Period Calendar是一款简约、安全且智能的 menstrual 健康应用，可将您的所有数据私密地保存在设备上。 这款应用以隐私为核心设计原则，通过完全在设备上运行的强大功能，帮助您追踪和了解自己的月经周期， 同时不泄露您的个人信息。

Privacy-First Design

隐私优先设计

All your personal data stays on your device. No cloud storage, no servers, no data collection. Your information remains completely under your control. Unlike many applications that store sensitive health data on external servers, Period Calendar ensures that every piece of information you enter – from cycle dates to symptoms and notes – never leaves your device. This approach eliminates the risk of data breaches, unauthorized access, or third-party data sharing, giving you peace of mind knowing your most personal health information remains private and secure.

您的所有个人数据都存储在设备上。无云存储、无服务器、无数据收集。您的信息完全由您掌控。 与许多将敏感健康数据存储在外部服务器上的应用不同，Period Calendar确保您输入的每一条信息 —— 从周期日期到症状和笔记 —— 永远不会离开您的设备。这种方法消除了数据泄露、未授权访问 或第三方数据共享的风险，让您高枕无忧，因为您知道自己最私密的健康信息始终保持私密和安全。

Intuitive Interface

直观界面

A clean and simple design makes tracking your cycle straightforward. Essential features are easy to access without complexity or unnecessary steps. The user-friendly interface presents key information at a glance, with a calendar view that clearly marks your menstrual days, fertile window, and upcoming predictions. Adding new entries takes just a few taps, and customizable categories allow you to track symptoms, mood, energy levels, and other personal metrics that matter to you. Whether you're a first-time cycle tracker or looking for a more streamlined experience, the intuitive design ensures you can navigate the app with ease.

简洁明了的设计使周期追踪变得简单直观。核心功能易于访问，无需复杂操作或多余步骤。 用户友好的界面一目了然地呈现关键信息，日历视图清晰标记您的月经期、易孕期和即将到来的预测。 添加新记录只需轻点几下，可自定义的类别让您能够追踪症状、情绪、能量水平以及其他对您重要的个人指标。 无论您是首次使用周期追踪器，还是正在寻找更简化的体验，直观的设计都能确保您轻松操作应用。

Smart Predictions

智能预测

The app analyzes your recorded data to predict future cycles. Predictions become more accurate as you continue tracking over time. Using a sophisticated algorithm, the app learns from your cycle patterns to forecast your next period, ovulation, and fertile window. The more data you input, the more precise the predictions become, helping you plan your schedule, prepare for menstruation, and make informed decisions about conception or contraception. All calculations are performed locally on your device, ensuring your data never leaves your phone.

应用分析您记录的数据以预测未来的周期。随着您持续追踪，预测会变得更加准确。 通过复杂的算法，应用从您的周期模式中学习，预测您的下一次月经、排卵和易孕期。 您输入的数据越多，预测就越精确，帮助您规划日程、为月经做准备，并就受孕或避孕做出明智的决定。 所有计算都在您的设备上本地执行，确保您的数据永远不会离开您的手机。

Cycle Insights

周期洞察

View your cycle history and patterns in a clear timeline format. Understand your body's rhythms with straightforward visual representations. The app provides detailed insights into your cycle length, variability, and trends over weeks and months. Interactive charts and graphs help you identify patterns in symptoms, energy levels, and other tracked metrics, empowering you to better understand your body and make informed decisions about your health. Whether you're tracking for general health, fertility, or symptom management, these insights provide valuable information to support your well-being.

以清晰的时间线格式查看您的周期历史和模式。通过直观的视觉呈现了解您身体的节律。 该应用提供关于您的周期长度、变异性以及数周和数月趋势的详细洞察。交互式图表和图形 帮助您识别症状、能量水平和其他追踪指标的模式，使您能够更好地了解自己的身体并就健康做出明智的决定。 无论您是为了一般健康、生育还是症状管理而进行追踪，这些洞察都能提供有价值的信息，支持您的健康。

Period Calendar respects your privacy while helping you understand your cycle. All processing happens locally on your device, giving you full control of your personal data.

Period Calendar在帮助您了解自己的周期的同时尊重您的隐私。所有处理都在您的设备上本地进行，让您完全控制自己的个人数据。

Premium Account Pricing and Terms

高级账户定价与条款

• $4.99/week
• $39.99/week

• 每周 $4.99
• 每年 $39.99

*Prices shown are in U.S. dollars; actual charges may be converted to your local currency.

*所示价格以美元计价；实际费用可能会转换为您的当地货币。

Payment will be charged to your iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period, and the renewal cost will be provided. Subscriptions can be managed by the language user. Turning off auto-renewal may be done by going to your account settings after purchase. Cancellation of the current subscription is not allowed during the active subscription period. Any unused portion of a free trial period, including but not limited to, will be forfeited when the user purchases a subscription to that publication.

购买确认后，费用将从您的iTunes账户中扣除。除非在当前周期结束前至少24小时关闭自动续订，否则订阅将自动续订。 账户将在当前周期结束前24小时内收取续订费用，并提供续订成本。用户可以管理订阅。购买后，可通过账户设置关闭自动续订。 在活跃订阅期内不允许取消当前订阅。当用户购买该出版物的订阅时，免费试用期的任何未使用部分（包括但不限于）将被没收。