FitCard
TechCrowds, LLC v1.0.1
Shirt sizes from your shirts
Competitor profile
Developer declarations; not independently tested. Listing last checked Nov 4, 2026. Package observed Nov 3, 2026.
Declared capabilities
- Pick the size to buy in a shirt from shirts you own
- Recommend shirts that will fit, each in the right size
- Look up a shirt's garment measurements by size
Cost & access
FitCard doesn't sell anything or take payments. Some shop links are affiliate links (for example Amazon Associates), which go to product or search pages, never to a checkout. A commission never changes the size FitCard recommends.
Declared limitations
- Women's clothing
- Shoes
- Styling, not sizing
Onboarding example
My Uniqlo AIRism tee in L fits great. What size in the J.Crew Broken-in tee?
Description
From the marketplace listing
Size charts tell you who a size is meant for, not how the shirt will fit. Most brands publish body charts ("L is for a 41-44 inch chest"), and those can't tell two shirts apart. Six Uniqlo Larges, all "for a 41-44 inch chest", measure 41.5 to 50.5 inches around. FitCard works from shirts you already own. Name 3-5 shirts that fit you well (brand, item and size), plus any that don't and where they're off (tight in the belly, rides up). FitCard compares their real garment measurements with the shirt you're looking at. You get one size and why, in terms of your own shirts ("fits like your Buck Mason L, 1 inch roomier"). You also get how it will fit at the chest, belly and length, and how sure it is. Ask it: - Which size to buy in a specific shirt. - Which shirts will fit you, each in the right size, with a link to the shop and to your full FitCard on fitcard.ai. - A shirt's garment measurements in every size. The measurements come from brand charts, wholesale spec sheets and shirts measured by FitCard users with their phones. If one of your shirts isn't known yet, FitCard says so, and you can measure it with your phone at fitcard.ai. For men buying tees, polos and button-downs. Not for women's clothing, shoes or pants. No sign-in. FitCard only sees the shirts you name and never asks for your body measurements. Sizes are an estimate, so check the shop's return policy. Some shop links are affiliate links; a commission never changes the size.
Language: English · Automatically detected from descriptions.
Changes
No changes recorded yet. Follow this plugin to keep track of future changes.
First seen Nov 3, 2026. Last seen Nov 4, 2026.
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Keywords
Files & skills
File archives
Skill instructions
fitcard931 Bytes
--- name: fitcard description: Pick a man's size in a shirt from shirts he already owns that fit. Use when he asks what size to buy in a shirt, tee, polo or button-down, which shirts will fit him, or a shirt's garment measurements. --- # FitCard FitCard compares a shirt's real garment measurements with shirts he already owns that fit. 1. Ask for 1-5 shirts that fit him well: brand, item and size. Shirts that don't fit help too; pass where they're off as `chest`, `belly` or `length`. 2. Call `size_me` for one shirt, `what_to_buy` for recommendations, or `shirt_measurements` for a shirt's measurements. 3. Report the size FitCard gives, its one-line reason and the confidence. Pass only what he tells you; don't invent measurements. 4. If one of his shirts isn't known yet, tell him he can measure it with his phone at fitcard.ai. 5. A size is a best estimate, so mention he should check the shop's return policy.
Release notes
First ChatGPT release. Three tools: size_me (the size to buy in one shirt), what_to_buy (shirts that will fit, each sized, with a shareable FitCard) and shirt_measurements (a shirt's garment measurements by size). No sign-in.
Declared in the saved package. Remote tools may change independently.
Package details
Publisher declarations from the archived package. These are separate from our research and the live service's terms.
- Package author
- TechCrowds, LLC
- Keywords
- See keywords
- Commerce declaration
- Does not support commerceThis does not establish whether access is free or paid.
- Review scenarios
- 5 positive · 3 negativeScenario counts, not test results.
Declared capabilities
- Pick the size to buy in a shirt from shirts you own
- Recommend shirts that will fit, each in the right size
- Look up a shirt's garment measurements by size
Package observed Nov 3, 2026.
Technical details
- First seen
- Nov 3, 2026 · 18:00 UTC
- Last seen
- Nov 4, 2026 · 06:00 UTC
- Collection status
- Collected
plugin_asdk_app_6ae955cd30788191b5e0bd6abd20208e
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