Now on the App Store

Inventory & Profit Tracker for Resellers

The free iOS app for resellers. Track inventory, manage listings across 16 platforms, and see your real profit after every expense. Works offline.

Download on the App Store

iOS 17+ required.

📸 Snap purchases

🏷️ Track listings

💰 See profits

📴 Works offline

Simple Workflow

How FlipperHelper Works

The inventory and profit tracker for resellers — three steps from market find to real profit.

📸

Buy

Snap a photo at a car boot sale, flea market, or charity shop. Log the price, market, and seller. FlipperHelper generates a unique SKU automatically.

🏷️

List

Mark which platforms you've listed on — eBay, Vinted, Facebook Marketplace, Depop, and 12 more. Track listing dates and asking prices across all of them.

💰

Profit

Record the sale and FlipperHelper calculates your real profit after entry fees, transport costs, and currency conversions. No manual spreadsheet formulas. See all features ↓

See It In Action

Real App, Real Screenshots

Here's what FlipperHelper looks like on your iPhone.

FlipperHelper new item screen — snap a photo of a ring at a car boot sale, set the price in GBP, choose cash or card payment

Snap & Save

FlipperHelper listed items tab — 5 items listed on eBay, Vinted, Facebook and Depop with platform badges and listing dates

Track Listings

FlipperHelper sold items tab — 7 sold items showing profit in green, from £13 to £32 profit per item across eBay, Vinted and Depop

See Profits

Money Flow

Key Features

Reseller Inventory & Profit Tracking Features

Built specifically for resellers who source in person.

🛒

16 Selling Platforms

Track listings on eBay, Vinted, Facebook Marketplace, Depop, Poshmark, Mercari, Etsy, Gumtree, Shpock, Preloved, Nextdoor, Grailed, ShopThing, OfferUp, Craigslist, and ThredUp.

💱

Multi-Currency

Buy in GBP at a UK car boot sale, sell in USD on eBay US. Supports USD, EUR, GBP, CAD, and AUD with automatic daily exchange rates from the European Central Bank.

🧾

Expense Tracking

Entry fees, transport (car, bus, train, taxi, van, bike rental), and other costs — all tracked per market trip. Your profit calculation includes everything.

📴

Offline-First

Works perfectly at markets with no WiFi. All data is stored locally on your iPhone with automatic iCloud backup. No account required, no server — your data never leaves your device.

☁️

Triple Backup

Automatic iCloud backup every 5 minutes — enabled by default. Export to Google Sheets with one tap. Photo sync to your Google Drive in the background. Your data is always safe.

📍

Smart Markets

GPS auto-suggests nearby markets when you open the app. Track which sellers you buy from, set geofence radii, and see spending per market over time.

📊

Hauls & Trip Tracking

Group items and expenses by sourcing trip. See per-trip profit as items sell over weeks and months. Know which markets are worth the early morning.

🏆

Share Cards & Celebrations

Share your best flips, monthly stats, and daily hauls as visual cards on social media. Auto-celebrations for first sale, best flip ever, and best month.

📦

Stock Value Dashboard

See how much money is invested in unsold inventory. Money Flow dashboard shows Made from Flips, costs breakdown, and net profit by week, month, or custom range.

🔍

Search

Find any item by name or SKU across your entire inventory. Mark items as sold directly from search results — no scrolling through long lists.

📅

Days to Sell

Track how long each item takes from listed to sold. Spot slow movers early, identify your fastest-selling categories, and make smarter sourcing decisions.

🔔

Listing Reminders

Push notifications remind you to list items you haven't listed yet. Set your preferred days and times. Everything processed on device — no server.

Who It's For

Built for Resellers Who Source In Person

FlipperHelper is the inventory and profit tracker for people who buy secondhand items to resell. Whether you're a car boot sale flipper in the UK, a flea market seller in the US, a charity shop reseller sourcing for eBay, or a Vinted and Depop side hustler in Canada or Europe — this app replaces the messy spreadsheet you've been using to track what you bought, where you listed it, and how much you actually made.

Unlike cross-listing tools, FlipperHelper doesn't post items for you. It tracks the entire lifecycle — purchase, listing, sale, expenses — and shows your real profit after all costs. Entry fees at the market, petrol to get there, the item price, and the final selling price on any of 16 platforms. That's the number that matters.

FlipperHelper is free to download with no ads. Every current feature is available at no cost. Read our privacy policy and terms of use.

See all 46 frequently asked questions →

The Story

From First Commit to App Store in 31 Days

FlipperHelper started because my wife needed a better way to track her car boot sale flipping business. She was using Google Sheets — and it was painful. So I built an app.

Day 1 — first working version: take a photo, log a price, save to JSON. Day 7 — multi-currency support and Google Drive photo sync. Day 14 — expense tracking, Money Flow analytics dashboard, and listing reminders. Day 18 — migrated from JSON files to SQLite for performance. Day 23 — complete Figma design system, every screen redesigned. Day 28 — onboarding flow, background sync, and full data backup/restore. Day 31 — production app with TestFlight beta, live on the App Store.

What started as a weekend hack became a real product. The entire app was built by one developer, with AI-assisted development using Claude Code.

18,100+ Lines of Swift

69 Source Files

16 Selling Platforms

5 Currencies

5 Share Card Types

31 Days to Ship

Comparison

FlipperHelper vs Spreadsheets, Vendoo & Flippd

FlipperHelper is an inventory and profit tracker, not a cross-listing tool. It complements services like Vendoo rather than replacing them. Read the full comparison or check the FAQ.

Feature	FlipperHelper	Spreadsheets	Vendoo	Flippd
Price	Free	Free	$6–25/mo	$10/mo
Offline	Yes	Partial	No	No
Photo tracking	Yes	No	Yes	Yes
Expense tracking	Entry fees + transport + other	Manual	No	No
Multi-currency	5 currencies + auto rates	Manual	No	No
Type	Inventory & profit tracker	DIY	Cross-lister	Inventory
Sourcing trip tracking	Hauls with per-trip profit	Manual	No	No
Stock value dashboard	Yes (invested in inventory)	Manual	No	Yes
Share cards	5 types (social media ready)	No	No	No
iCloud backup	Automatic (every 5 min)	N/A	Cloud	Cloud
Google Sheets export	One-tap CSV → Sheets	Native	No	No
Celebrations	First sale, best flip, best month	No	No	No
Custom date ranges	Week / month / custom	Manual	No	Limited
Search	By name or SKU	Ctrl+F	Yes	Yes

Common Questions

Frequently Asked Questions

What is FlipperHelper?

FlipperHelper is a free iOS inventory and profit tracker for resellers who buy items at car boot sales, charity shops, and flea markets to resell. It tracks every item from purchase through listing to sale, calculates your real profit after all expenses (entry fees, transport, packaging), and works completely offline with automatic iCloud backup.

Is FlipperHelper really free?

Yes. FlipperHelper is free to download with no ads. Every current feature is available at no cost — item tracking, expense tracking, profit calculation, multi-currency support, iCloud backup, Google Sheets export, and offline mode. No account required.

Does FlipperHelper work offline?

Yes. FlipperHelper is offline-first — all data is stored locally on your iPhone with automatic iCloud backup. You can log purchases, mark listings, and record sales with no internet connection. Google Drive export is optional and happens when you're back online.

What selling platforms does FlipperHelper support?

FlipperHelper tracks listings across 16 platforms: eBay, Vinted, Facebook Marketplace, Depop, Poshmark, Mercari, Etsy, Gumtree, Shpock, Preloved, Nextdoor, Grailed, ShopThing, OfferUp, Craigslist, and ThredUp. You can also record sales at car boot sales or offline.

How is FlipperHelper different from Vendoo or Flippd?

FlipperHelper is an inventory and profit tracker, not a cross-listing tool. Vendoo pushes listings to multiple platforms — FlipperHelper tracks what you bought, what it cost to get there, and your real profit after all expenses. Flippd is also a tracker but charges $9.99/month and focuses on barcode price research. FlipperHelper is free and focuses on expense tracking for market sourcing. Read the full comparison.

See all 46 frequently asked questions →

Featured on