平台： iOS、Android 价格： 免费使用， 无广告 、 无订阅 （可选一次性购买出生证明模式）
在找一款最好用的免费宫缩计时器 App，在紧张时刻也能让您保持镇定？ Bump Pulse 专为真实的产程打造：一键快速计时、清晰的分析，以及可选的伴侣同步，没有广告，也没有订阅压力。
我们在产程中试用过那些“热门”App，结果遇到的问题都一样：广告、基础功能被锁、在最糟糕的时刻弹出订阅提示。 所以我们做了 Bump Pulse ：实用、安静、可靠。在您需要的时候，以您需要的方式运作。想并排比较其他计时器，可以看看Storky 的替代应用。
一键记录宫缩
计时宫缩不该复杂。 开始、停止、继续，都只需轻点一下。界面专为真实情况设计：光线昏暗、双手发抖、压力巨大。
- 大号主按钮，大号字体。
- 状态一目了然（进行中 / 已暂停 / 已停止）。
- 凌晨 3 点半梦半醒时也能用。
智能产程分析，只看您需要的
关键信息一眼掌握：
- 平均宫缩持续时间
- 宫缩之间的间隔
- 最近一次记录的时间
所有数据实时更新。足以判断进展，又不会淹没在图表里。
与伴侣同步计时器（二维码）
用二维码或邀请链接，把您正在进行的计时共享到另一台设备。 您的伴侣或导乐可以通过实时更新一起追踪，并在新的宫缩开始时收到通知。
- 默认情况下，伴侣以“仅供查看”的方式追踪。您也可以按需给予“完整控制”。
- 通过二维码或邀请链接轻松配对。
- 在难以开口说话时，也能默默协作。
iPhone 实时活动（锁定屏幕）
在 iOS 17 及以上版本，当前宫缩可以通过实时活动一直显示在锁定屏幕上。
- 您可以直接在锁定屏幕上停止宫缩。
- 开始/继续会打开 App（需要解锁）。
这样您就能保持专注，不必在 App 之间来回切换。
计时回顾 + 产程模式（可选）
当您“以防万一”开始记录时，计时记录很容易变得杂乱。 Bump Pulse 提供轻量工具，例如用计时回顾让记录更有目的性，以及在真正进入产程时用产程模式让使用体验更专注。
为真实的分娩而生，而不是为了赚钱
没有广告，没有订阅陷阱。核心计时器始终好用，也尊重您。
出生证明模式（可选，一次性购买）： 为想要更多功能的人加入额外功能（例如无限历史、备注与强度、伴侣即时控制、自订里程碑和出生证明设计），而不会锁住基础功能。
数据： 宫缩记录保存在您的设备上，并仅为实现伴侣同步和可靠性，通过 Firestore 安全同步。 我们不出售数据。没有广告追踪。无需账号。
用起来，分享出去。当那一刻到来时，专注于真正重要的事。
Is Bump Pulse really free? What’s included without paying?
Yes. The core contraction timer is free, with **no ads** and **no subscription**. You can time contractions, review your history and use the essentials without paying.
What is Birth Certificate Mode and what do I get with it?
**Birth Certificate Mode is optional** — a one-time purchase, not a subscription. It adds “nice-to-have” extras that make the experience richer and easier during/after labor, without locking you out of the basics. It unlocks things like unlimited contraction history, notes and intensity, partner live control, custom milestones and all birth certificate designs.
How does Partner Sync work? Do we need an account?
No account needed. You pair devices by scanning a **QR code** or opening an invite link. Your partner or doula follows along with live updates (View only by default), so everyone stays in sync.
Can both devices control the session?
By default, the second device is **View only** and follows the session. You can give your partner Full control so they can start, stop and edit contractions from their own phone. Following along live is free; Full control is part of Birth Certificate Mode.
Does it work offline?
Yes for tracking on one phone. The timer works on-device even without internet. **Partner Sync requires internet** to send live updates between devices.
What is “Session Check-In” and why would I use it?
Session Check-In is a quick, lightweight step that helps you keep your tracking clean and intentional. It’s useful when you start timing “just in case” and later want to confirm the session is real, reset it, or keep it for reference.
What is “Labor Mode”?
Labor Mode is a more focused experience for the moment you actually need it. It reduces distractions and keeps the most important actions (start/stop/resume, last contraction, interval) front and center.
What is Birth Certificate Mode?
Birth Certificate Mode is designed for after the birth. It helps you save and share the key details from your session in a clean, keepsake-style format.
Is my data safe?
Your contractions are stored on your device. Partner Sync uses secure cloud sync (Firebase/Firestore) to reliably mirror the session between devices. We don’t run ad tracking and we don’t sell personal data.
Is it iPhone-only?
No. Bump Pulse works on **iOS and Android**. On iOS (supported versions), you can also use **Live Activity** on the Lock Screen to keep the current contraction visible without constantly opening the app.