Data handling
Files and pasted job text are processed only to run your requests. We do not sell your résumé or JD content. Sign-in via Google (Supabase); we store account identity and usage metering to keep the service fair.
4i Flow — Pick up where you left off
The job search workspace built to convert effort into interviews.
Polish your résumé PDF, run posting-aware fit analysis, and rehearse interviews with AI—in one focused workflow. Fewer tabs, clearer next steps, faster cycles from draft to send.
- JD-aware
- Fit scoring
- Adaptive
- Interview
- Actionable
- Output
Early access — built by one founder, used by early job-seekers. Your feedback shapes what ships next.
Pick up where you left off
Everything after you find the role
Serious candidates batch their work. Jump straight into the step that moves the needle—your time compounds when you repeat a system, not reinvent it.
Workflow
A calm system—not a scattered stack of tabs
- 01
One structured résumé draft
Capture headline, impact, and skills in the vault—saved to your account when signed in, copy clean text anytime.
- 02
A PDF you would attach with confidence
Highlight, sign, reorder pages, and export in the studio—files stay in your account for analysis or applications.
- 03
Measure fit against the real posting
Paste the JD, get a score, missing keywords, and rewrite direction before you hit send.
- 04
Rehearse with the same context
Mock interviews and debriefs grounded in the role—not generic prompts.
- 05
Track the pipeline honestly
Company, stage, notes, and last touch beside your prep tools—no orphaned spreadsheets.
Trust by design
Your documents stay yours
AI accelerates drafts and practice—you approve what employers see. Review every line before you hit send.
Clear coaching output
Every mock session ends with structured feedback: strengths, gaps, and a concise read on how you come across—so you know what to fix before the real call.
Operator Contact
Questions or feedback: justbuild1223@gmail.com (aim to reply within 48 hours).
See the output
Real scores, not vibes.
Every fit analysis returns a numeric score with a breakdown, and every mock interview ends with a pass-likelihood report — so you know exactly what to fix next.
Matching Score84 / 100
- Keyword alignment
- 88
- Experience relevance
- 82
- Impact clarity
- 79
Pass Likelihood72%
- Communication
- 8/10
- Problem solving
- 7/10
- Technical depth
- 8/10
Why I built this
I built 4i Flow because the workflow got me hired.
4i Flow started as my own job-search system: tailor each résumé to the role, score how well it fits, drill the interview, and keep every application in one place instead of scattered tabs and docs.
It worked — I changed jobs with it. So instead of shipping a throwaway MVP, I rebuilt the whole loop as a real product, because the value was never one clever tool. It was the loop holding together, from first draft to offer.
— Built by someone who used it to land a job first
One accumulating loop
Your résumés, fit scores, interview reports, and tracker feed each other — not five disconnected tools.
Your data stays yours
Profiles, JD history, and tracker rows live on your account — Free or Pro, canceling deletes nothing.
Built for three markets
English, Korean, and Japanese — the same loop wherever you're job-hunting.
Pricing
Start free. Upgrade when the loop pays off.
Every tool is free to use. Pro lifts the monthly AI limit and unlocks unlimited résumés and share links.
| What you get | Free$0 | Pro$12/mo |
|---|---|---|
| Monthly AI runs (fit analysis + mock interviews) | 15/mo · 40 for your first 14 days | 400/mo |
| Résumés | Up to 3 | Unlimited |
| Share links | Up to 5 (30-day expiry) | Unlimited (90-day expiry) |
| Vault, PDF studio & tracker | Included | Included |
| Pro badge | Included |
One better offer — or landing a few weeks sooner — outweighs years of Pro. At $12/mo, the math rarely needs convincing.
No card to start. Pro pricing is shown at secure checkout; cancel anytime.
Ready when you are
Open the workspace and run your next high-leverage task in minutes—not hours.
Land more interviews — one tip at a time.
Join job seekers getting practical resume, ATS, and interview tips. Start with our free ATS checklist.
Plus occasional product updates. No spam.