Resty® vs Calk
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Resty® compared with Calk
| Detail | 
Resty® | 
Calk |
|---|
| What it does | Sleep deeper. Breathe easier. Recover.
| The calorie counter you don't have to live in
|
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | NL
| IL
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| Pricing model | Paid
| Freemium
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| Pricing | Not given
| Core tracker free forever (food logging, targets, weight entry, weight trend). Annual subscription $49.99/year for daily advice and monthly reports (first month free).
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| Key features | - MARS red light panels with wavelengths from 480 to 1060 nm
- Multiple nasal strip styles for different preferences
- Three mouth tape shapes (H-Shape, X-Shape, Advanced)
- 4D sleep mask for light blocking without pressure
- 3 year commercial warranty on eligible devices
- 60 day trial period including opened products
- App, touchscreen and remote control for select panels
- Infrared heat lamps for local warmth
- Daylight lamp with 10,000 lux
| - Monthly Nutrition Report with meal analysis
- Weight trend chart
- Variety Map showing food diversity
- Offline food and weight logging
- No ads or tracking
- Calorie and macro targets
- Daily advice and recommendations
- No kitchen scale required
- Shareable seven-day Variety Map
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| What makes it different | - Dutch brand with clear product information and practical designs for everyday use
- 60-day trial period on all orders, including opened products
- Available through multiple online retailers across Europe
- Comprehensive customer support with fast response within 24 hours
- Product recommendations through interactive quiz
| - Food logging with a defined endpoint instead of permanent daily tracking
- Changes to familiar meals instead of restrictive diets
- Focus on meal composition over portion reduction
- Transparent data handling with no third-party tracking
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| 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) | 5 ▼ −1 (down) since last check | 8 ● no change since last check |
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| Trust Flow (Majestic) | 17 | 14 |
|---|
| Citation Flow (Majestic) | 31 | 24 |
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| Referring domains (Majestic) | 226 | 31 |
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5 details filled in for both companies.
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