Karran Gupta.

Funnel optimization case studies.

Pinned · Case studies

Case study · July 28, 2026 · 7 min read

Rocket Mortgage Case Study: The Copy Test Worth 80 Loans a Month

A conversion case study: re-testing one Rocket Mortgage upsell tile, copy then a trust badge, tripled its clicks and added an estimated 150 loans a month.

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Case study · July 7, 2026 · 7 min read

FX Replay Case Study: 2.6x ARR in 18 Months

How a fractional CMO engagement grew FX Replay ARR 2.6x in 18 months: fixing broken attribution, finding the pricing lever, building the team.

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Case study · July 7, 2026 · 8 min read

YouMail Case Study: A Web Funnel That Cut CAC 77%

YouMail's app-store funnel had stalled. Moving signups to the web raised conversion from 9% to 22% and cut customer acquisition cost 77%.

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Case study · July 7, 2026 · 4 min read

Rocket Mortgage Case Study: $2B in Incremental Loan Volume

A funnel optimization case study on Rocket Mortgage: a test-a-week experiment program drove an estimated $2B in incremental loan volume at a 42% win rate.

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Frequently asked questions

What kind of articles are published here?

Funnel optimization case studies from real growth engagements: paid media, conversion optimization, lifecycle, tracking, and the numbers behind each. New case studies are added regularly.

Are the case study numbers real?

Yes. Every case study is built from engagement data: ad platform spend, revenue reporting, and experiment results. Where figures are rounded or anonymized to protect a client, the article says so.

Can I work with Karran directly?

Yes. Karran takes a small number of fractional CMO, growth audit, and advisory engagements at a time. Use the contact form to book an intro call.

Have a growth problem worth solving?

I write about what actually moved the numbers. If any of it maps to what you're facing, let's talk.

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