Comparison
Flo vs Period Calendar 2026: Privasi, Ciri & Harga Dibandingkan
Our verdict
Flo (440M+ users) was accused of sharing data with Google and Meta. Period Calendar (300M+ claimed users) claims no data collection while running Google Ads. The two most-downloaded period trackers both have privacy contradictions. PinkyBloom resolves the contradiction entirely — zero ads, never sold.
Flo vs Period Calendar vs PinkyBloom
| Feature | Flo | Period Calendar | PinkyBloom |
|---|---|---|---|
| Price | ~$49.99/yr premium | Free with ads + IAP | Free |
| Users | 440M+ | 300M+ claimed | Growing |
| Data storage | Cloud (Flo servers) | Claims local storage | Stored on your phone |
| Privacy track record | Class action settled 2025; Flo paid $8M | Ad SDK contradictions documented | Never sold, no ads; partner sharing end-to-end encrypted |
| AI assistant | Cloud-based chatbot | Built-in AI assistant (Pinky) | |
| Voice logging | |||
| Mood forecasts | |||
| Content library | Thousands of articles | Basic tips | AI-generated insights |
| Account required | Email required | Optional | No account needed |
| Ads | Ads in free tier | Yes (Google Ads/AdMob) | No ads ever |
| Doctor visit reports | |||
| Languages | Many | Many | 71 languages |
Overview
Flo dan Period Calendar oleh Simple Design adalah, berdasarkan jumlah muat turun, dua penjejak haid yang paling popular pernah dicipta. Flo mendakwa mempunyai 440 juta pengguna; Period Calendar mendakwa 300 juta. Bersama-sama mereka mewakili hampir tiga perempat bilion akaun yang menjejak data kesihatan reproduktif.
Aplikasi ini sangat berbeza dalam pendekatan. Flo adalah platform kesihatan yang komprehensif dengan chatbot AI, forum komuniti, kandungan pakar, dan langganan premium. Period Calendar adalah penjejak yang mudah, tanpa hiasan — log haid anda, lihat ramalan, jejak simptom. Flo menyasarkan pengguna kesihatan yang terlibat; Period Calendar menyasarkan pengguna yang mengutamakan kesederhanaan di atas segalanya.
Apa yang mereka kongsi adalah jurang privasi. Kegagalan privasi Flo didokumentasikan di mahkamah persekutuan. Situasi privasi Period Calendar tertanam dalam model perniagaannya — mendakwa tiada pengumpulan data semasa menjalankan SDK iklan Google yang mengumpul data secara reka bentuk.
Privacy comparison
Flo's privacy failures are the most documented in the industry. An FTC order in 2021, a class action Flo settled for $8M in 2025, and a California jury verdict against Meta for eavesdropping on Flo users' data. Flo denies wrongdoing, and no court has found that it broke the law.
Period Calendar's privacy situation is different but concerning. The app markets itself with bold "we don't collect or store your data" claims. But it's ad-supported through Google Ads, DoubleClick, and AdMob. Privacy International documented heavy third-party network traffic to Google advertising services despite the local storage claims. Advertising SDKs collect device identifiers, usage patterns, and behavioral data by definition — that's how ad targeting works.
The pattern is the same: both apps say one thing about privacy and do another. Flo's contradiction ran for nearly three years before the press caught it. Period Calendar's contradiction is structural — you cannot simultaneously claim "no data collection" and run ad networks that require data collection to function.
PinkyBloom eliminates the contradiction. No ads means no ad SDKs. No accounts means no identity linkage. Your cycle log is stored on your phone, protected by your phone's own encrypted storage.
Features and intelligence
Flo kaya dengan ciri: 70+ simptom, chatbot AI, forum komuniti, mod kehamilan, kandungan daripada 120+ pakar perubatan. Ia adalah platform kesihatan, bukan sekadar penjejak.
Period Calendar adalah ringkas dalam ciri: log haid, anggaran ovulasi, jejak simptom, dan pandangan kalendar. Versi berbayar menghapuskan iklan. Ia adalah alat log yang melakukan asas dengan boleh dipercayai.
Antara kedua-duanya, Flo jelas menawarkan lebih banyak. Tetapi ciri-ciri Flo datang dengan pemprosesan awan, langganan, dan pelanggaran privasi yang didokumentasikan. Kesederhanaan Period Calendar datang dengan iklan dan seni bina warisan.
PinkyBloom menawarkan kemampuan setaraf Flo — pembantu AI, ramalan mood, peti kesihatan, laporan doktor — dengan kesederhanaan setaraf Period Calendar — tiada akaun diperlukan, berfungsi serta-merta. Pencatatan suara bermakna penjejakan tanpa tangan tanpa menu manual.
Pricing comparison
Flo charges ~$49.99/year for premium. Period Calendar is free with ads and optional paid upgrades. The cost difference is significant — Flo is among the most expensive period trackers; Period Calendar is among the cheapest.
But the real cost includes what you pay beyond money. Flo costs subscriptions and, for nearly three years, your data. Period Calendar costs your attention (ads) and potentially your data (ad SDKs).
No ads, no hidden data costs. More features than Flo, simpler than Period Calendar, and never sold.
There's a better option
The two most-downloaded period trackers both have privacy contradictions — Flo's documented by the FTC, Period Calendar's embedded in its ad model. PinkyBloom is the zero-contradiction alternative: no ads, no account, never sold. More features than Flo, simpler setup than Period Calendar.
