Comparison
Flo vs Period Calendar 2026: Integritet, Funktioner & Priser Jämförda
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 och Period Calendar av Simple Design är, baserat på nedladdningsantal, de två mest populära mensspånarna som någonsin skapats. Flo hävdar 440 miljoner användare; Period Calendar hävdar 300 miljoner. Tillsammans representerar de nästan tre fjärdedelar av en miljard konton som spårar reproduktiv hälsodata.
Apparna är dramatiskt olika i sin ansats. Flo är en omfattande hälsoplattform med AI-chatbot, communityforum, expertinnehåll och premiumprenumerationer. Period Calendar är en enkel, avskalad spårare — logga din mens, se förutsägelser, spåra symptom. Flo riktar sig till den engagerade hälsokonsumenten; Period Calendar riktar sig till användaren som vill ha enkelhet framför allt.
Vad de delar är en integritetslucka. Flos lucka är dokumenterad i federal domstol. Period Calendars lucka är inbäddad i dess affärsmodell — som hävdar ingen datainsamling medan de kör Google-annons SDK:er som samlar in data av design.
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 är funktionsrik: 70+ symptom, AI-chatbot, communityforum, graviditetsläge, innehåll från 120+ medicinska experter. Det är en hälsoplattform, inte bara en spårare.
Period Calendar är funktionsenkel: mensloggning, ägglossningsuppskattningar, symptomspårning och en kalenderöversikt. Den betalda versionen tar bort annonser. Det är ett loggningsverktyg som gör det grundläggande pålitligt.
Mellan de två erbjuder Flo tydligt mer. Men Flos funktioner kommer med molnbehandling, prenumerationer och dokumenterade integritetsöverträdelser. Period Calendars enkelhet kommer med annonser och gammal arkitektur.
PinkyBloom erbjuder Flo-nivå funktioner — AI-assistent, humörprognoser, hälsovault, läkarrapporter — med Period Calendar-nivå enkelhet — inget konto behövs, fungerar omedelbart. Röstloggning betyder handsfree-spårning utan manuella menyer.
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.
