1. Scanning Apps

Essential for retail arbitrage. These apps scan barcodes and show profit potential instantly.

Top Picks: Amazon Seller App (free), ScoutIQ (books), Profit Bandit (general RA).

2. Listing Tools

Cross-list faster with automation. List once, publish everywhere.

Top Picks: List Perfectly, Vendoo, Crosslist. Most offer free tiers to start.

3. Shipping Tools

Never pay retail shipping rates. Shipping software gets you commercial discounts.

Top Picks: PirateShip (free, best USPS rates), Shippo, ShipStation (for high volume).

4. Bookkeeping

Track every dollar or tax time becomes a nightmare. Start organized, stay organized.

Top Picks: QuickBooks Self-Employed, Wave (free), or a simple spreadsheet to start.