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Get Started Free →Use when writing landing page copy, app store descriptions, onboarding flows, email sequences, push notifications, or any user-facing text
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-01 | ✗→✓ | ▲ Improved | 48% | 0% |
| case-15 | ✗→✓ | ▲ Improved | 49% | 0% |
| case-04 | ✗→✓ | ▲ Improved | 45% | 0% |
| case-08 | ✗→✓ | ▲ Improved | 27% | 0% |
| case-14 | ✗→✓ | ▲ Improved | 16% | 0% |
> Philosophy: Clarity over cleverness. Benefits over features. The reader first, always. > Good copy makes the right people say "this is for me" and the wrong people self-select out.
Best for: landing pages, email sequences, long-form ads
Best for: short form ads, push notifications, homepage heroes
Best for: writing copy that resonates with a specific user segment
Best for: headlines, subject lines, CTAs
| ❌ NEVER DO | Why | ✅ DO INSTEAD | |------------|-----|--------------| | Lead with features | Users care about their outcome, not your tech | Lead with the transformation/benefit | | Vague superlatives ("best", "amazing") | Zero credibility, no information | Specific proof ("ranked #1 by AppFollow") | | Weak CTA ("click here", "submit") | No reason to act | Action + benefit ("Start saving time") | | Passive voice | Weak, distant | Active voice, direct | | Jargon and acronyms | Confuses, excludes | Plain language at 8th grade reading level | | Wall of text | No one reads it | Short paragraphs, bullets, scannable | | First open asks for email | Friction before value | Show value first, gate later |
iOS App Store:
Google Play:
Before writing anything:
When reviewing copy:
Must fix:
Should fix:
app-store-optimizer — for ASO-specific copy strategyconversion-optimizer — for landing page and paywall copy testingproduct-manager — for understanding JTBD before writing| Metric | Good | Great | |--------|------|-------| | Open rate | > 25% | > 40% | | Click-through rate | > 3% | > 8% | | Unsubscribe rate | < 0.5% | < 0.2% |
Other measured skills in the registry, with their headline benchmark lift.