Model 1: Flat-Rate Subscription

A fixed price per seat or per account, billed monthly or annually. This is the pricing model most people picture when they think "SaaS."

When it works:

• Your product's value is consistent regardless of usage volume
• Your customers are SMBs who need predictable costs
• You're selling a collaboration tool where "number of seats" is the natural unit of value

Examples: Notion, Linear, Basecamp.

The trap: Per-seat pricing creates friction for expansion. Every new user added costs money, so teams share accounts or avoid onboarding colleagues. It also punishes your best customers — the ones who use your product most heavily pay the same as low-volume users.

Model 2: Usage-Based Pricing

Customers pay based on what they consume — API calls, messages sent, rows processed, active users, or compute time.

When it works:

• Your product's value scales directly with usage (more calls = more value)
• You're building developer tools, data pipelines, or AI products where consumption is natural
• You want a low barrier to entry: customers start small and expand as they succeed

Examples: Stripe (per transaction), Twilio (per SMS), OpenAI (per token).

The trap: Revenue becomes unpredictable. A customer who cuts usage — even temporarily — generates no revenue. Finance teams at enterprise companies often resist usage-based billing because it makes budgeting harder. You'll need a strong dashboard so customers can monitor and control their spend.

Model 3: Freemium

A free tier with limited features or usage, plus paid plans for full access.

When it works:

• You have a product with viral or network effects — free users bring in paying users
• Distribution is your primary challenge (the product is hard to explain without trying it)
• You have low marginal cost per free user

Examples: Slack, Figma, Dropbox.

The trap: Freemium is expensive to maintain. Free users consume infrastructure, support, and engineering bandwidth. If your free-to-paid conversion rate is below 2–5%, you're subsidizing a large user base without recovering costs. Freemium works when free users generate organic growth — it fails when they just consume resources.

Hybrid Models: Where Most Mature SaaS Products Land

Many successful SaaS companies combine models:

• Freemium + Subscription: Free tier to acquire users, flat subscription to unlock full features (Figma, Notion)
• Subscription + Usage overage: A flat monthly base rate that covers up to X usage, then per-unit pricing above the threshold (common in API products)
• Per-seat + Usage: Each seat includes a usage allowance; heavy users upgrade to larger plans

How to Choose at the MVP Stage

At pre-revenue or early-revenue stage, optimize for learning, not optimization. Your goals are:

1. Charge something. Free products don't tell you anything about willingness to pay. Even a low price filters for serious users.
2. Choose the simplest model your customers understand. A pricing page that requires a call to explain is a pricing page that loses deals.
3. Align price with the value metric your users talk about. If customers say "we processed 10,000 leads," charge per lead. If they say "we saved 5 hours per person per week," charge per seat.

The right pricing model is the one that grows with your customers. Start with a flat subscription if you're unsure — it's easiest to explain, easiest to sell, and you can migrate to usage-based or hybrid pricing once you understand your usage patterns.

Revisit pricing every 6 months at the startup stage. The model that closes your first 10 customers is rarely the one that closes your next 100.