Comparison
Flo vs Natural Cycles 2026: Privatnost, Značajke i Cijena Usporedba
Our verdict
Flo je najpopularniji aplikacija za praćenje menstruacije na svijetu s dokumentiranom poviješću dijeljenja podataka s oglašivačima. Natural Cycles je jedina FDA-odobrena kontraceptivna aplikacija, ali košta do $149.99/godišnje i zahtijeva dnevna očitanja 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 — besplatno za početak, bogat sadržajem i dizajniran za povremene korisnike koji žele sveobuhvatnu zdravstvenu platformu. Natural Cycles je nišni medicinski uređaj — FDA-odobren za kontracepciju, klinički validiran i dizajniran za korisnike spremne uložiti u dnevno mjerenje temperature i premium pretplatu.
Snaga Flo-a je dostupnost: preuzmite ga, kreirajte račun i počnite pratiti s više od 70 simptoma, tisućama članaka i značajkama zajednice. Snaga Natural Cycles-a je klinička vjerodostojnost: to je jedina aplikacija koju je FDA odobrila kao digitalni kontraceptiv (Klasa II medicinski uređaj, 510(k) K173464), s recenziranim dokazima koji podupiru njezinu učinkovitost.
Ključna razmjena između njih je cijena i obveza. Flo je u suštini besplatan za isprobavanje (s oglasima i premium razinom od $49.99/godišnje). Natural Cycles košta do $149.99/godišnje i zahtijeva dnevna očitanja bazalne tjelesne temperature — bilo s namjenskim termometrom ili Oura prstenom. Jedan je lak; drugi je učinkovit 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 cijeni između Flo-a i Natural Cycles-a je značajna. Premium Flo košta ~$49.99/godišnje; njegova besplatna razina ima oglase. Natural Cycles nedavno je povećao cijene na $21.99/mjesec ili ~$149.99/godišnje (povećano s $14.99/mjesec prije lipnja 2025.), čineći ga jednim od najskupljih praćenja ciklusa na tržištu. Dodajte kompatibilni termometar ($15-30) ili Oura prsten ($299+), i ukupna trogodišnja investicija je značajna: Flo ~$150 naspram Natural Cycles ~$450+ s hardverom.
Vrijednost ponude je jasna, ali različita. Flo vam daje platformu bogatu sadržajem za zdravlje. Natural Cycles vam daje FDA-odobrenu kontracepciju. Pitanje je opravdava li bilo koja od njih trošak — i podatke pohranjene u oblaku — kada postoje bolje alternative.
PinkyBloom je besplatan. Bez potrebnog hardvera. Trošak za tri godine: $0. PinkyBloom nije FDA-odobrena kontracepcija, ali za veliku većinu potreba praćenja ciklusa — predikcije, simptome, svijest o plodnosti, praćenje raspoloženja, zdravstvene evidencije — nudi više značajki 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.
