Free Forever Tier
Maintain a genuinely free-forever plan with no expiration. The free-forever signal lowers signup friction and seeds long-tail conversion across years — free users convert at low percentages, but the absolute numbers add up over time.
- 1
Survey 30+ recent paying customers on willingness-to-pay (Van Westendorp 4-question model).
- 2
Identify the value metric — what the customer scales on (seats, usage, revenue, etc.).
- 3
Design tiers around the value metric, not arbitrary feature gates — buyers should self-select up.
- 4
Test the new pricing on new signups first; never change existing customers without grandfathering.
- 5
Watch trial-to-paid conversion + ARPU together — moving one without the other usually means you got pricing wrong.
- 6
Re-test pricing every 12-18 months; the market moves and so should your number.
A productivity SaaS commits to a free-forever core plan; over five years, 8% of free users eventually convert to paid as their use case grows.
Mailchimp's free tier (originally 2,000 subscribers / 12,000 emails) ran for 14 years and built the entire freemium-to-paid funnel that powered Intuit's $12B acquisition in 2021. Slack, Notion, and Loom all rode similar generous-free-tier playbooks to $10B+ valuations.
- CPL (cost per lead)
- CAC
- Signups / day
- Pipeline created
- Audience match rate
Free-forever must be sustainable at scale — calculate serving costs per free user before committing; some businesses cannot sustain it.
- ✗Raising price without re-validating willingness-to-pay; cannibalizes top-of-funnel silently.
- ✗Confounding monetization changes with growth experiments — both moving makes attribution impossible.
- ✗Watch-out from the playbook: Free-forever must be sustainable at scale — calculate serving costs per free user before committing; some businesses cannot sustain it.
SaaS with low marginal cost per free user