| What it does | Free concrete slab cost estimator with material, labor and site prep breakdowns
| Free Pokémon card grade checker
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free: 7 full scans per month, live scan, grade estimate, values, decision, calculators and collection unlimited. Pro monthly: $3.99/month (rises to $4.99 for new subscribers January 1, 2027), unlimited scans. Pro yearly: $31.99/year, $2.67 per month, save 33% (rises to $39.99 for new subscribers Jan
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| Key features | - Material, labor and delivery cost breakdowns
- Pre-calculated costs for common slab sizes
- Multiple calculator tools including rebar, yard, bag and footing
- No sign-up required, data stays in browser
| - PSA grade estimation with centering, corners, edges and surface subgrades measured from photos
- Card identification using CardSight AI matched to exact TCGplayer printing
- Raw prices from TCGplayer refreshed daily for each printing variant
- Graded values from median of recent eBay completed sales for PSA, CGC and Beckett
- Collection tracker with daily valuation and price history charts synced across devices
- Grade-or-not verdict calculated after subtracting grading fees, shipping and eBay fees
- Price guide searchable by card name or number with separate prices for Shadowless, 1st Edition and other printings
- Grade range showing likely grade plus how far it could swing based on photo limitations
- Free account with email sign-up, no password required, optional collection sync across devices
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| What makes it different | - Built by a single independent developer focused on accessible, ad-free calculation tools
- Transparent calculations using standard formulas so users see exactly how each number is produced
- Multiple concrete calculation tools sharing one consistent calculation engine
| - No download required, runs directly in web browser on phone and computer
- Built by an actual collector and reseller with dated real-world sales data
- Independent and unaffiliated with PSA, graders, retailers or Pokémon Company
- Live camera scanning with auto-straightening works at any angle, including full tilted surface check
- Compares estimated grade and grading cost against raw and graded comps to show actual profit potential
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● 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) | 16 | 15 |
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| Referring domains (Majestic) | 4 | 2 |
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The Concrete Calculator
Should I Grade It?