FlipperHelper
Track reselling profits from purchase to sale, offline
FlipperHelper is an iOS app for people who buy and resell second-hand goods. It tracks items from purchase to sale across 16 selling platforms including eBay, Vinted, Depop, and Facebook Marketplace. Photograph purchases, log costs, track where items are listed, and see your actual profit after entry fees, transport, and platform fees. Built offline-first so it works at car boot sales and outdoor markets with no phone signal. Data stays on your phone with optional Google Drive backup and automatic Google Sheets export.
Features
- Track items from purchase to sale across 16 selling platforms
- Photograph purchases and log costs instantly
- Calculate real profit after entry fees, transport, and platform fees
- Works fully offline — no internet needed at markets
- Google Drive backup and automatic Google Sheets export
- Multi-currency support with live exchange rates
Use Cases
- Tracking what you paid for items at car boot sales and charity shops
- Knowing which items are listed on which platforms
- Calculating actual profit after all expenses at end of month
- Recording purchases on the spot at markets with no phone signal
- Exporting monthly sales data to Google Sheets for tax records
Comments
I built FlipperHelper because my wife runs a reselling business — buying furniture at car boot sales and charity shops, then selling on eBay and Vinted. Her biggest problem was forgetting what she paid for things and losing track of which items were listed where. She was doing everything from memory. I'm a developer so I built her an app. It works offline because most car boot sales are in fields with no phone signal. I built it in about six weeks as a solo project. Would love to hear from anyone who resells — what's your biggest pain point with tracking inventory and profits?
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Comments
I built FlipperHelper because my wife runs a reselling business — buying furniture at car boot sales and charity shops, then selling on eBay and Vinted. Her biggest problem was forgetting what she paid for things and losing track of which items were listed where. She was doing everything from memory. I'm a developer so I built her an app. It works offline because most car boot sales are in fields with no phone signal. I built it in about six weeks as a solo project. Would love to hear from anyone who resells — what's your biggest pain point with tracking inventory and profits?
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