The short answer: retail sells to consumers in small quantities at higher margins, usually paid instantly; wholesale sells to businesses in bulk at lower margins, usually on credit. The same product can move through both, but the customers, pricing, margins and cash cycle are fundamentally different.

The core differences

 RetailWholesale
CustomersConsumersBusinesses
Order sizeSmallLarge / bulk
Margin per unitHigherLower
VolumeLower per saleHigher
PaymentUsually instantUsually on credit
PricingFixed shelf priceTiered / negotiated

What the differences mean in practice

Running both together

Many businesses do both — a shop that also supplies other shops. That works well if your system can handle both models at once: consumer sales at shelf prices and business customers on tiered pricing and credit, from one stock pool.

One system for retail, wholesale, or both

RushFlow supports retail POS and wholesale (tiered pricing, credit, bulk orders) from the same inventory and accounts — so you can run either or both cleanly. See the live demo.