Comparison
Maya vs Period Calendar 2026: プライバシー、機能、価格の比較
Our verdict
Maya was caught sharing diary entries with Facebook. Period Calendar claims no data collection while running Google Ads. Both are popular free ad-supported trackers across South Asia, the Middle East, and emerging markets — and both have privacy contradictions. PinkyBloom offers AI, 71 languages, and zero ads — and never sells your data.
Maya vs Period Calendar vs PinkyBloom
| Feature | Maya | Period Calendar | PinkyBloom |
|---|---|---|---|
| Price | Free with ads + IAP | Free with ads + IAP | Free |
| Users | 10M+ downloads | 300M+ claimed | Growing |
| Data storage | Cloud-based | Claims local storage | Stored on your phone |
| Privacy track record | Facebook data sharing (2019) | Ad SDK contradictions | Never sold, no ads; partner sharing end-to-end encrypted |
| AI assistant | Built-in AI assistant (Pinky) | ||
| Voice logging | |||
| Mood forecasts | |||
| Health diary | Text diary (shared with Facebook) | Voice-based logging | |
| Ads | Yes (ad-supported) | Yes (Google Ads/AdMob) | No ads ever |
| Account required | Account required | Optional | No account needed |
| Doctor visit reports | |||
| Languages | South Asian focus | Many | 71 languages |
Overview
MayaとPeriod Calendarは、発展途上市場で大規模なユーザーベースを持つ人気の無料の生理トラッカーです。Plackal TechのMayaは1000万回以上ダウンロードされており、特にインド、パキスタン、バングラデシュ、ネパール、スリランカで強いです。Simple DesignのPeriod Calendarは3億人のユーザーを主張し、ラテンアメリカ、中東、東南アジア、サハラ以南のアフリカで人気があります。
両方のアプリは、無料でアクセス可能な生理トラッキングを求めるユーザーにアピールしています。どちらも広告サポート型です。基本的な周期予測、症状の記録、カレンダー表示を提供しています。ターゲットデモグラフィックにとって、特に有料の健康アプリが一般的でない市場では、「無料」という価格設定が重要です。
不快な現実は、両方のアプリに文書化されたプライバシーの問題があることです。MayaはFacebookとデータを共有していることが発覚しました。Period Calendarはデータ収集を行っていないと主張しながら、データ収集を必要とする広告ネットワークを運営しています。親密な健康データをこれらのアプリに信頼している数億人のユーザーにとって、プライバシーのマーケティングと実際の間のギャップは重要です。
Privacy comparison
Maya's privacy failure is documented. Privacy International's September 2019 investigation found Maya transmitting intimate data to Facebook — including diary text entries where users described symptoms, moods, and sexual activity. Users writing private health notes were unknowingly sending them to Facebook's advertising ecosystem.
Period Calendar's privacy issue is structural. The app markets "we don't collect or store your data" while running Google Ads, DoubleClick, and AdMob. Privacy International documented heavy third-party traffic to Google advertising services despite local storage claims. Advertising SDKs collect device identifiers and behavioral data by design.
Both apps are ad-supported, meaning both embed advertising SDKs that create data flows to third parties. Maya's flow to Facebook was documented directly. Period Calendar's flow through ad networks is inherent to its business model.
PinkyBloom eliminates ads entirely, so there are no ad SDKs collecting anything. No accounts means no identity linkage. Your cycle log is stored on your phone, encrypted and biometrically protected. For users across South Asia, the Middle East, and emerging markets, PinkyBloom provides the same accessibility (free, 71 languages, no account needed) without the ads.
Features and intelligence
Maya provides standard period tracking with cycle predictions, ovulation estimates, symptom logging, and a text diary. Health content is tailored to South Asian audiences. The diary feature is notable — and notably was the feature sending data to Facebook.
Period Calendar provides basic logging: period dates, predictions, symptom tracking, and a calendar view. It's simple and reliable but lacks any advanced intelligence.
Neither app offers AI, voice logging, or predictive health features. Both are manual logging tools with basic statistical predictions.
PinkyBloom transforms the experience with AI. Voice logging replaces manual text entry — safer than Maya's diary (which went to Facebook) and faster than Period Calendar's forms. AI mood forecasts predict patterns. Doctor visit reports create professional summaries. All available in 71 languages, covering every market where Maya and Period Calendar are popular.
Pricing comparison
MayaとPeriod Calendarはどちらも広告とアプリ内購入がある無料です。金銭的コストは最小限です。プライバシーコストはトレードオフです:両方とも広告サポート型モデルを使用しており、広告ネットワークへのデータフローを作成します。
PinkyBloomは広告なしで無料です。無料アプリが不可欠な市場のユーザーにとって、PinkyBloomはAI機能、広告の中断なしで同じ価格設定を提供します。
There's a better option
Maya shared diary entries with Facebook. Period Calendar runs Google Ads while claiming no data collection. PinkyBloom resolves both contradictions — no ads, no ad SDKs, never sold. AI-powered health tracking in 71 languages, including Hindi, Bengali, Tamil, Telugu, Arabic, and more.
