Charlie Chang’s apps

Personal Brand OS

Content strategy, ideas, scripts, distribution, and analytics.

One place for the whole content operation: what to make, the script, where it goes, and what it did. It turns a scattered practice of notes and drafts into a queue with a schedule attached, and reports which ideas were worth making.

What a v1 does5 features
  • An idea bank scored on what has performed before
  • Script drafting with hooks and structure per platform
  • A calendar covering every platform at once
  • Repurposing one piece into the formats each platform wants
  • Performance by idea and by format, feeding back into the bank

The market

Proven marketCreator publishing
$42.6Ma year at Kit, bootstrapped, with beehiiv at $30M annualised

beehiiv grew from $19.8M at the end of 2024 to $30M by June 2025, with paid plans from $49 a month. At $39 a month this is below beehiiv's cheapest paid plan.

Where these numbers come from
CompanyEarnsReachSource
Kit (ConvertKit)$42.6M revenue, 2024Not publishedBaremetrics data
beehiiv$30M annualised, June 2025 (from $19.8M end-2024) · from $49/moNot publishedIndependent estimate
vidIQ$16.58–99/mo20M+ creators have used itPublished pricing

Why this audience

Personal branding is a stated subject of this content and the audience is actively building one. Their practice is scattered across notes, drafts and platforms. One place for ideas, scripts, distribution and results matches what they are already trying to run.

Before it can launch

No licence, certification or data agreement stands between this and a launch — app-store review and an ordinary privacy policy aside.

What it earns

Drag me Every figure recalculates as you go.

Paying users1,000

0.05% of 2M followers · capped at 50,000

Price per month$39

Opens on the price this idea was costed at, $39.

1,000 paying — 0.05% of 2M followers — × $39 a month = $39,000 a month

Paying users0123456789,012345678901234567890123456789
Revenue a month$01234567890123456789,012345678901234567890123456789
Over twelve months$012345678901234567890123456789,012345678901234567890123456789

Fifty thousand paying users is the ceiling every one of these pages is drawn against, not a forecast. It opens at a thousand, the bottom of the range, so the first figures you see are the modest ones. What the cap buys is comparability: the same range on every app, and the percentage of the audience it takes as the number that moves.

Is this the one for your audience?

We fund it, build it, and run it. You bring the audience and take a share of the revenue. Nothing to pay and nothing to build.

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