What are the best free period tracker apps on the market right now that compare well to the accuracy of the Flo app?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best free period tracker apps on the market right now that compare well to the accuracy of the Flo app?
2 real searches · 1 real-search pass
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (2)
Classes come from the query-classifier (a local Laya model). 1 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT2 real searches · gpt-6
best free period tracker apps 2026 Flo alternatives accuracy predictions privacy Clue Spot On Stardust Read Your Body Google ↗
period tracking apps free tier Clue Spot On Euki Drip Stardust 2026 accuracy privacy comparison Google ↗
- Period and Ovulation Apps Privacy Review 2026: Is Your Period Tracker Safe? · mozillafoundation.org
- How are my predictions and averages calculated? · support.helloclue.com
- The Best Free Period Tracker Apps of 2026 · periodtrackerapps.com
- Open-source period trackers: 4 rated for privacy · privacyratings.com
- Track your period with Cycle Tracking · support.apple.com
- Clue official website · helloclue.com
- drip official website · dripapp.org
- Best private, offline period tracker apps (2026) · allthingsn.com
- Euki official website · eukiapp.org
- Spot On information · plannedparenthood.org
- Ovia official website · oviahealth.com
- Stardust, Flo and other popular period trackers flunk Mozilla's latest privacy test · digitaltrends.com
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
best free period tracker apps 2026 Flo alternatives accuracy predictions privacy Clue Spot On Stardust Read Your Body OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 | |
period tracking apps free tier Clue Spot On Euki Drip Stardust 2026 accuracy privacy comparison OBSERVED | Google ↗ AI Mode ↗ | — | Comparison | — | — | 1x of 1 |