| What it does | Free calculators for sleep, mental wellbeing, recovery, fitness, nutrition and healthy living
| Etsy fee calculator showing true profit after all fees including Offsite Ads
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
| JP
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free: one-order calculator and listing score. Listing rewrite $2.99 for 10 rewrites or $9.99 for 40. Shop Audit $9.90 once with 14-day refund.
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| Key features | - Sleep Cycle Calculator for planning bedtimes based on 90-minute cycles
- Bedtime Calculator to find sleep time based on wake-up time and duration
- Wake-Up Time Calculator based on bedtime and sleep cycles
- Sleep Debt Calculator to estimate missed sleep over a week
- Caffeine Half-Life Calculator to estimate caffeine remaining in body
- How Much Sleep Do I Need Calculator with age-based estimates
- 20 calculator hubs across Sleep, Mind, Body, Family and Lifestyle categories
- Transparent formulas showing the math behind each result
- Evidence-based references citing primary sources
- Editorial and clinical review for sensitive health tools
| - Free single-order fee calculator with transaction, processing, listing, and Offsite Ads costs
- Free listing score (0–100) based on title, tags, and description
- AI listing rewrites with title, 13 tags, and description generation
- Shop Audit with live listings ranked worst-first by margin
- Suggested prices on thin or losing margin rows
- Pricing Bible and 1,200-row matrix
- Sold-order backtest from Etsy history
- Calculates 6.5% transaction fee on item plus shipping
- Supports UK and Germany payment processing presets
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| What makes it different | - Private calculations in browser with no account required or personal data selling
- Transparent formulas and methodology for every calculator
- Evidence-based content citing primary sources not rewrites
- Regularly updated formulas with versioning and review dates
| - Calculates 6.5% fee on total including shipping, not item price alone
- One-person operation with direct email support and no templates
- All free tools run locally in browser with no data upload
- No subscription; all paid products are one-time purchases
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 17 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 10 | 21 |
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| Referring domains (Majestic) | 16 | 10 |
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WowSleepCalculator
Canopio