Password Strength Checker extension with ads + premium subscription. Distributed from your 12 sites.
Real-time zxcvbn analysis on any password field
HIBP API — 10 queries/day
Random strong passwords, copy to clipboard
No daily limit, real-time alerts
Track password strength over time
Clean experience + priority support
| Source | Method | Installs/Month |
|---|---|---|
| 12 password sites | Install banner: "Check your passwords for free!" | 200-500 |
| Blog posts | In-content CTA | 100-300 |
| YouTube (Password Labs) | Description + pinned comment | 50-200 |
| Email newsletter | Feature in Security Sentinel | 50-100 |
| Social media | n8n auto-posts | 30-100 |
| Total | 430-1,200/mo |
| Timeframe | Total Installs | Ad Revenue (40% MAU) | Premium (2% conv) | Total |
|---|---|---|---|---|
| Month 1 | 500 | $2 | 4 × $2.99 = $12 | $14/mo |
| Month 3 | 3,000 | $12 | 24 × $2.99 = $72 | $84/mo |
| Month 6 | 10,000 | $40 | 80 × $2.99 = $239 | $279/mo |
| Month 12 | 30,000 | $120 | 240 × $2.99 = $718 | $838/mo |
| Year 2 | 100,000 | $400 | 800 × $2.99 = $2,392 | $2,792/mo |
Sprint 1 (Week 1-2): Core extension — password field detection + zxcvbn strength meter
Sprint 2 (Week 3-4): Breach check (HIBP) + password generator + popup UI
Sprint 3 (Week 5-6): Premium tier — Supabase sync + history + secure notes
Sprint 4 (Week 7-8): Ad integration + Chrome Web Store listing + launch
Tech: Vanilla JS + Supabase + Stripe