Checkout review
$14,880
Annual plan, 38 seats, renews Aug 12
Required states
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Minimal UI principles for SaaS teams
Make interface debt visible.
Ruleline turns cluttered product screens into a small set of enforceable design rules for density, hierarchy, copy, and states. Built for senior product designers reviewing complex SaaS flows.
First audit includes 3 screens, 24 interface checks, and a shareable principle sheet.
Rule score 82/100
Minimal enough to govern, specific enough to ship.
Ruleline avoids bloated design-system theater. It records the few constraints that make SaaS screens readable under real product pressure.
24checks across hierarchy, density, copy, feedback, and empty states
6 minaverage review time for a single production screen
3 rolesdesigner, PM, and engineer view the same rule sheet
0decorative AI overlays, generic scoring badges, or mystery metrics
A principle workflow, not another dashboard.
Pick a screen, inspect the constraint lens, then publish rules that make future work easier to critique.
Start with one product surface.
Pricing is intentionally small because the product is built for focused senior reviews, not endless reporting.
Review
$49
For one product designer auditing a single SaaS flow.
- 3 screens per audit
- Principle sheet export
- Local browser prototype mode
Studio
$149
For design leads standardizing product quality across squads.
- 20 screens per month
- Shared rule library
- PM and engineer review links
Ruleline principle sheet
Turn the next design review into decisions, not taste.
No account required for the sample audit. Reduced motion is respected automatically.