Comparison
Clue 與 Natural Cycles 2026：隱私、功能與價格比較
Our verdict
Clue is a science-backed period tracker with strong GDPR compliance at $39.99/yr. Natural Cycles is the only FDA-cleared contraceptive app at up to $149.99/yr plus hardware. Both store data in the cloud and charge subscriptions. PinkyBloom offers a built-in AI assistant, no account, and no ads.
Clue vs Natural Cycles vs PinkyBloom
| Feature | Clue | Natural Cycles | PinkyBloom |
|---|---|---|---|
| Price | $39.99/yr (Clue Plus) | ~$149.99/yr | Free |
| Data storage | Cloud (EU servers) | Cloud-based | Stored on your phone |
| FDA cleared | Yes (Class II) | ||
| CE medical device | Yes (Class 1) | Yes | |
| Hardware required | BBT thermometer or Oura Ring | ||
| AI assistant | Built-in AI assistant (Pinky) | ||
| Voice logging | |||
| Mood forecasts | |||
| Account required | Email required | Account required | No account needed |
| Ads | No ads | No ads | No ads ever |
| Partner sharing | Clue Connect (cloud) | E2E encrypted (PinkyBond) | |
| Doctor visit reports |
Overview
Clue 和 Natural Cycles 經常被比較，因為它們都將自己定位為科學嚴謹的替代品，與大眾市場的月經追蹤器相比。Clue 由位於柏林的 BioWink GmbH 開發，強調基於研究夥伴關係的數據驅動預測，並持有 CE 1 類醫療設備認證。Natural Cycles 由諾貝爾獎得主 Dr. Elina Berglund 創立，是唯一獲得 FDA 批准的數位避孕應用（II 類，510(k) K173464）。
根本的區別在於範疇。Clue 是一款週期追蹤器，幫助您通過統計分析和自定義標籤了解您的模式。Natural Cycles 是一種避孕工具，根據您的基礎體溫告訴您今天是否為排卵日。Clue 用於理解；Natural Cycles 用於預防（或計劃）懷孕。
對於在兩者之間選擇的用戶，決策通常取決於您是否需要臨床避孕（Natural Cycles）或更喜歡更廣泛、更靈活的追蹤工具（Clue）。兩者設計良好，均以科學為導向，並收取全功能的訂閱費用。
Privacy comparison
Both Clue and Natural Cycles have clean privacy records compared to apps like Flo or Premom. Neither has been involved in major data scandals. But both store your reproductive health data in the cloud, and both require accounts.
Clue operates under GDPR in Berlin and stores data on EU servers. They've publicly committed to not selling user data. For European users especially, this provides meaningful regulatory protection. However, cloud storage is cloud storage — your data exists on servers you don't control, tied to your email address.
Natural Cycles stores data in the cloud as well, and as an FDA-regulated medical device, it's legally required to retain certain user data for regulatory compliance. This means you can't fully delete your data even if you want to. Your BBT readings, sexual activity logs, LH test results, and fertility classifications all live on Natural Cycles' servers.
Both apps are "better than average" for privacy. PinkyBloom stores your cycle log on your phone, not in an account on our servers — no account, no regulatory retention, never sold, and partner sharing is end-to-end encrypted.
Features and intelligence
Clue 的優勢在於靈活性和研究支持。自定義標籤讓您幾乎可以追蹤任何東西。分析選項卡提供對您記錄數據的模式識別。Clue Plus 解鎖高級預測和懷孕模式。界面簡潔而極簡，專注於數據而非內容。
Natural Cycles 的優勢在於臨床精確性。基於溫度的算法將每一天分類為綠色（不排卵）或紅色（排卵/使用保護）。對於致力於症狀熱法的用戶，它提供結構化的、經臨床驗證的指導。Oura Ring 整合為 BBT 測量提供了便利。
兩款應用都不提供 AI 驅動的功能。沒有對話助手，沒有語音記錄，沒有預測情緒的功能。兩者都依賴手動輸入——Clue 通過點擊，Natural Cycles 通過每日溫度讀數。
PinkyBloom 填補了兩款應用留下的空白。語音記錄取代手動輸入。AI 情緒預測在情緒發生之前預測情緒模式。醫生訪問報告生成器為醫療提供者創建專業摘要。
Pricing comparison
Clue 和 Natural Cycles 之間的價格差異相當大。Clue Plus 每年 $39.99——對於一款高級健康應用來說是合理的。Natural Cycles 每年高達 $149.99，幾乎是四倍的價格，另加兼容的體溫計（$15-30）或 Oura Ring（$299+）的費用。
Natural Cycles 以 FDA 批准和臨床驗證來證明其高價。如果您特別需要數位避孕，這個成本可能是值得的。Clue 以高級預測和研究支持的分析來證明其價格。對於其目標受眾來說，兩者都是合理的價值主張。
五年內：Clue 約花費 $200，Natural Cycles 約花費 $750+（加上硬體）。PinkyBloom 的費用為 $0。PinkyBloom 不是 FDA 批准的避孕工具，但在週期追蹤、生育意識、健康見解和 AI 驅動的預測方面，它提供的功能超過了任何付費應用。
There's a better option
Clue and Natural Cycles are both science-forward apps with clean privacy records — but both charge subscriptions and store data in the cloud. PinkyBloom matches Clue's tracking flexibility, adds AI that Natural Cycles lacks, and stores your cycle log on your phone with no account.
