Comparison
Flo vs Natural Cycles 2026: Privatnost, Karakteristike i Cena Upoređeni
Our verdict
Flo je najpopularniji aplikacija za praćenje menstruacije na svetu sa dokumentovanom istorijom deljenja podataka sa oglašivačima. Natural Cycles je jedina aplikacija za kontracepciju koju je odobrila FDA, ali košta do $149.99/godišnje i zahteva dnevna očitavanja temperature. PinkyBloom nudi pametniju AI — bez termometra.
Flo vs Natural Cycles vs PinkyBloom
| Feature | Flo | Natural Cycles | PinkyBloom |
|---|---|---|---|
| Price | ~$49.99/yr premium | ~$149.99/yr | Free |
| Users | 440M+ | 3M+ | Growing |
| Data storage | Cloud (Flo servers) | Cloud-based | Stored on your phone |
| FDA cleared | Yes (Class II) | ||
| Privacy track record | $56M class action | No major incidents | Never sold, no ads; partner sharing end-to-end encrypted |
| Hardware required | BBT thermometer or Oura Ring | ||
| AI assistant | Cloud-based chatbot | Built-in AI assistant (Pinky) | |
| Voice logging | |||
| Mood forecasts | |||
| Account required | Email required | Account required | No account needed |
| Ads | Ads in free tier | No ads | No ads ever |
| Doctor visit reports |
Overview
Flo i Natural Cycles predstavljaju suprotne krajeve spektra praćenja menstruacije. Flo je lider na tržištu — besplatan za početak, bogat sadržajem i dizajniran za povremene korisnike koji žele sveobuhvatnu zdravstvenu platformu. Natural Cycles je nišni medicinski uređaj — odobren od strane FDA za kontracepciju, klinički validiran i dizajniran za korisnike spremne da investiraju u dnevno merenje temperature i premium pretplatu.
Snaga Flo-a je dostupnost: preuzmite ga, napravite nalog i počnite da pratite sa 70+ simptoma, hiljadama članaka i funkcijama zajednice. Snaga Natural Cycles-a je klinička kredibilnost: to je jedina aplikacija koju je FDA odobrila kao digitalni kontraceptiv (klasa II medicinski uređaj, 510(k) K173464), sa recenziranim dokazima koji podržavaju njenu efikasnost.
Ključna razmena između njih je trošak i posvećenost. Flo je suštinski besplatan za probu (sa oglasima i premium nivoom od $49.99/godišnje). Natural Cycles košta do $149.99/godišnje i zahteva dnevna očitavanja bazalne telesne temperature — bilo sa posvećenim termometrom ili Oura prstenom. Jedan je lak; drugi je efikasan za specifičnu kliničku svrhu.
Privacy comparison
Flo's data sharing is extensively documented. The FTC alleged in 2021 that Flo shared menstrual data with Google, Facebook, and Flurry Analytics; Flo settled with no fine and no admission. A class action settled in 2025, with Flo paying $8M. A California jury found Meta liable for eavesdropping on Flo users' data. Flo's "Anonymous Mode" still uploads data to servers.
Natural Cycles has a cleaner privacy record with no major enforcement actions. However, as an FDA-regulated medical device, Natural Cycles is required to retain user data for regulatory compliance — meaning you cannot fully exercise a right to deletion. All data including BBT readings, sexual activity logs, LH test results, and fertility status is stored on cloud servers. An account with personal information is mandatory.
Both apps store your reproductive health data in the cloud, both require accounts, and both are subject to legal data access frameworks in their respective jurisdictions. The difference is degree: Flo has proven it will share your data; Natural Cycles hasn't, but the architectural vulnerability remains.
PinkyBloom needs no account, and your cycle log is stored on your phone, not in an account on our servers. It's never sold, and partner sharing is end-to-end encrypted.
Features and intelligence
Flo offers the broadest feature set: 70+ trackable symptoms, articles from 120+ medical experts, community forums, pregnancy mode, and a cloud-based AI chatbot. It's a health content platform as much as a tracker.
Natural Cycles offers a focused, clinically validated feature set built around temperature-based fertility detection. The algorithm analyzes daily BBT readings and optionally LH test results to classify days as green (not fertile) or red (fertile/use protection). It's highly effective for its specific use case but requires rigid daily discipline — temperature measurement at the same time every morning before getting out of bed.
PinkyBloom combines broad tracking with intelligent automation. Voice logging lets you say "cramps and fatigue today" instead of tapping through menus. AI mood forecasts predict emotional patterns days ahead. The doctor visit report generator creates professional summaries for healthcare appointments. No thermometer needed, no daily discipline requirement.
Pricing comparison
Razlika u ceni između Flo-a i Natural Cycles-a je značajna. Premium Flo košta ~$49.99/godišnje; njegov besplatan nivo ima oglase. Natural Cycles je nedavno povećao cene na $21.99/mesečno ili ~$149.99/godišnje (povećano sa $14.99/mesečno pre juna 2025), čineći ga jednim od najskupljih praćenja ciklusa na tržištu. Dodajte kompatibilni termometar ($15-30) ili Oura prsten ($299+), i ukupna investicija za tri godine je značajna: Flo ~$150 naspram Natural Cycles ~$450+ sa hardverom.
Ponuda vrednosti je jasna, ali različita. Flo vam daje platformu bogatu sadržajem za zdravlje. Natural Cycles vam daje kontraceptiv odobren od strane FDA. Pitanje je da li bilo koja od njih opravdava trošak — i podatke pohranjene u cloudu — kada postoje bolje alternative.
PinkyBloom je besplatan. Bez potrebe za hardverom. Trošak za tri godine: $0. PinkyBloom nije kontraceptiv odobren od strane FDA, ali za veliku većinu potreba praćenja ciklusa — predikcije, simptome, svest o plodnosti, praćenje raspoloženja, zdravstvene evidencije — nudi više funkcija od Flo-a.
There's a better option
Flo has the features but betrayed user trust. Natural Cycles has the clinical credibility but costs $150/yr and requires a thermometer. PinkyBloom delivers a built-in AI assistant, no account, and a price of $0 — no hardware needed.
