Marketing in Public
X (Twitter)Launch-day posts to his existing X audience

Day 1 on the App Store: 250 installs and 24 free trials

By Jack Friks· Sep 27, 2026
9%
Install → trial
250
Installs
Not disclosed
Budget
1 day
Duration

On his new mobile app's first day on the App Store, promoted only on X, Jack Friks got 250 installs and 24 free-trial starts — a 9% install-to-trial rate — before doing any other marketing.

01The problem

He set himself a challenge: build a viral mobile app to $1,000 in 30 days.

02The experiment

Day 8 of a public challenge to build a mobile app to $1,000 in 30 days. For launch day he relied only on his X audience; he said real marketing (warmed-up short-form accounts) would start the next day.

He priced deliberately high — 7-day trial into $39.99/year or $6.99/month — reasoning that it's better to overprice and A/B test price points, and that a high baseline leaves room for win-back and abandoned-checkout discounts.

03Results

MetricResult
Installs250
Free trials started24
Install → trial9%
RevenueNot disclosed
SpendNot disclosed

“Not disclosed” means the source doesn't say. We never estimate or fill in missing numbers.

04What worked — and what didn't

What worked

  • An existing X audience produced a measurable first day with no other marketing

05Lessons

He prices high on purpose: it's easier to test down and to offer discounts (win-back, abandoned checkout) from a higher baseline.

“this is also just from twitter, i’ll start real marketing tomorrow/monday”
— Jack Friks

06Source & evidence

  • Originally shared on X · Mar 8, 2025

    Day 1 on the App Store stats

    View original

Public source. Extracted from publicly available content by the founder.

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Channel
X (Twitter)
Estimated effort
—
Original duration
1 day
Original budget
Not disclosed

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X (Twitter)
1
buildfast sales
$360
revenue, month 1
$760
revenue, month 2

Banned from Reddit 6 times, he built a tool for it — and sold it on X: $360 in month one

Arthur Yuzbashev · MediaFast

Arthur Yuzbashev's first two products died on Reddit: six bans, one BuildFast sale. He tracked what had triggered each ban, turned that into MediaFast — a tool for marketing on Reddit without getting banned — and sold it by sharing the story on X. Month one: $360; by January 2026: $5,400.

Read experiment Public source