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NanoRhino vs Calk

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

NanoRhino compared with Calk
Detail NanoRhinoCalk logo Calk
What it doesAI nutrition coach delivered by text message with results-based pricing The calorie counter you don't have to live in
StageNot given Startup
FoundedNot given 2026
Based inUS IL
Pricing modelPaid Freemium
PricingFirst 2 weeks free. Then $10 per pound lost, capped at $500 total. No subscription, no upfront charge. Billed at five-pound milestones via Stripe (Apple Pay or card). 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).
Key features
  • Photo-based calorie counting with 90%+ accuracy
  • Weekly calorie target recalibration from actual measurements
  • Free initial two-week measurement phase
  • Human nutritionist review when progress stalls
  • Persistent memory of food preferences and habits
  • No app required—SMS and WhatsApp only
  • Exercise plan creation fitted to your routine
  • GLP-1 medication support with protein focus
  • 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
What makes it different
  • Pay only for actual weight lost—first 2 weeks free, then $10/lb capped at $500
  • Measured calorie burn from your own data, not population formulas
  • Human nutritionist intervention, not AI-only coaching
  • Text-based coaching with no app, login, or subscription required
  • Same pound never billed twice—re-losses and bounces are free
  • 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
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)16 −1 (down) since last check8 no change since last check
Trust Flow (Majestic)814
Citation Flow (Majestic)3024
Referring domains (Majestic)18531

6 details filled in for both companies.

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