# Underpriced - Profit Calculator for Resellers

> Best price checker app for resellers. Snap a photo → get instant profit margins

- **Website**: https://www.underpriced.app/
- **Uneed Page**: https://www.uneed.best/tool/underpriced-app
- **Pricing**: Freemium
- **Category**: Business
- **Tags**: AI, Automation, Browser Extensions
- **Submitted by**: @alex-7
- **Launch Date**: 2026-02-23
- **Social Links**: [Instagram](https://www.instagram.com/underpriced.app/) | [Facebook](https://www.facebook.com/profile.php?id=61584176078030) | [YouTube](https://www.youtube.com/@UnderpricedApp)

## About

I built an intelligent item analyzer + in-built Inventory Tracker for flippers/resellers that identifies any item and tells how much profit you'll make before you buy (works for both in-person and online sourcing) - Underpriced.app

I'm the developer of Underpriced.app, a tool I built specifically for flippers and resellers who are tired of guessing if a deal is actually worth their time.

Every reseller has been there: You see something at a thrift store or on Facebook Marketplace, think "that might be worth something," but you're not sure. So you either pass and potentially miss out on $200 profit, or you buy and end up with another item that sits in your death pile for 6 months.

I built Underpriced to eliminate that uncertainty.

✨ Every Analysis Includes

- Deal Tier – HOT DEAL / GOOD DEAL / FAIR / PASS

- Deal Score (0-100) – Quantified deal quality

- AI Confidence % – How certain the AI is about its valuation

- Item Identification – Brand, model, era, key specs, authenticity markers

- Category Detection – Auto-detects category and applies specialized expertise (electronics, fashion, furniture, collectibles, watches, etc.)

- Market Value Range – Low/median/high based on real market data

- Personal Use Value – Savings vs. buying new/retail

- Flip Value – Profit, margin, demand, time to sell, best platforms

- Red Flags – Overpriced items, potential scams, authenticity concerns, missing information

- Things to Check – Category-specific inspection points before you buy

- Data Sources – See what data backed the valuation

🎯 What Makes This Different From "Just Googling It" or asking ChatGPT?

This isn't a price lookup. It's a flip-focused analysis engine that tells you:

- Exact profit potential – Not just market value, but YOUR profit after fees, shipping estimates, and your purchase price

- Profit margin % – Know instantly if it's a 20% flip or a 200% flip

- Demand level – Is this a quick flip or a slow burn? (High/Medium/Low)

- Time to sell estimate – Days, weeks, or months?

- Best platforms to sell on – eBay, Poshmark, Mercari, FB Marketplace – where will THIS item sell fastest and for the most?

- Deal Score (0-100) – Instant gut-check. 80+ = grab it. Under 40 = walk away.

One screenshot. 15-30 seconds. You know if it's worth buying.

🔥 Two Ways to Use It

📱 Online Sourcing Mode

Browsing Facebook Marketplace, eBay, Craigslist, OfferUp, or any online listing? Screenshot it. Get instant analysis with:

- What it is (brand, model, year, specs)

- What it's actually worth

- Your profit if you flip it

- Red flags to watch for

- Platform-specific fee calculations

🏷️ In-Person Sourcing Mode

At a thrift store, garage sale, estate sale, or flea market? Snap a photo of the item and price tag. Get the same comprehensive analysis in seconds – while you're still standing there deciding.

No more "let me look this up" while someone else grabs it. No more buying blind and hoping.

🧩 Chrome Extension

Install the extension and analyze listings without leaving the page:

- One click on any eBay, Facebook Marketplace, Craigslist, OfferUp, Mercari, or Poshmark listing

- Results appear in a popup – no tab switching

- Select specific areas to analyze (great for multi-item listings)

- Same powerful analysis, faster workflow

📋 Flip Tracker – Your Reselling Command Center

A complete flip tracking system built into the app:

Track Every Flip

- Purchase details – What you paid, where you sourced it, date acquired

- Listing details – Where you listed, asking price, listing date

- Sale details – Final sale price, fees, shipping costs, profit

- Status tracking – Sourced → Listed → Sold

Real-Time Analytics

- Total profit across all flips

- Average ROI %

- Average days to sell

- Best performing categories

- Profit trends over time

Why This Matters

Most resellers track nothing or use messy spreadsheets. This gives you actual business intelligence:

- Know your true ROI (not what you think it is)

- Identify what categories make you the most money

- See how long inventory actually sits

- Make smarter sourcing decisions based on YOUR data

💎 Premium AI Tools (Reseller Tier+)

These are the features that turn casual flippers into serious resellers:

🧠 Deep Dive

One-click comprehensive market research:

- Price history and trends

- Cross-platform price comparison

- Authentication tips for your specific item

- Detailed condition impact on value

- Expert-level verdict

💬 Negotiator

AI-generated negotiation strategy:

- Leverage points specific to the listing

- Target price recommendation

- Copy-paste messages ready to send the seller

- Counter-offer scripts

- Walk-away price

📈 Plan My Flip

Complete listing generator:

- SEO-optimized titles

- Professional descriptions (copy-paste ready)

- Pricing strategy with minimum/target/aspirational prices

- Photo tips specific to your item

- Platform-specific recommendations

- Shipping suggestions

📊 eBay Comps (Beta)

Real sold listing data pulled directly from eBay:

- Actual recent sale prices (not asking prices)

- Median, low, and high sale prices

- Condition-based price breakdown

- Sample size and data quality indicators

- Verifies AI estimates with real market data

🚀 Try It Free

5 free analyses to start – no credit card required.

→ underpriced.app

Happy flipping 🤝