PeriodlyWise vs Breath Harbor
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
PeriodlyWise compared with Breath Harbor
| Detail | 
PeriodlyWise | 
Breath Harbor |
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| What it does | Privacy-first cycle tracking for period, ovulation, and fertility estimates
| Free breathing, grounding and meditation tools in your browser
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| SG
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Estimate next period date and period window
- Calculate ovulation timing and fertile window ranges
- Save period records to private account
- View cycle history and compare patterns
- Share results as image or text summary
- Print results or save as PDF
- Add calendar reminders for upcoming dates
- Install as progressive web app
- Multilingual support
- Track irregular cycles with history-based projections
| - Breathing timer with box breathing, 4-7-8 and physiological sigh patterns
- 5-4-3-2-1 grounding exercise
- Meditation timer with bell and rain sounds
- 15 guided audio tracks from 3 to 20 minutes
- AI-generated narration using OpenAI text-to-speech
- 7-day beginner practice plan
- Practice history and tension ratings saved locally
- Optional Christian meditation with Scripture
- Optional Buddhist meditation practices
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| What makes it different | - Privacy-first design that doesn't track or invasively collect sensitive information
- Shows estimate ranges instead of false precision
- Optional account features—basic tools work without sign-up
- Clear medical disclaimers and educational focus, not medical device claims
- Installable as app without requiring app store download
| - Completely free with no app installation or account required
- Tools run entirely in browser with no data sent to servers
- Original scripts with transparent editorial standards and source verification
- Multiple practice types to choose based on preference
- Privacy-focused with no data selling or ad trackers
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 3 | 0 |
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| Citation Flow (Majestic) | 22 | 0 |
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| Referring domains (Majestic) | 6 | 0 |
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4 details filled in for both companies.
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