Will This Ever Work?Your code works. Will your business?
Tools for the part after you build it: users, money, and the math.
Paste an App Store or Google Play link. Get up to 500 public reviews, with a guided read in Claude or ChatGPT.
Example: Calm, 450 Google Play reviews, United States, Jun 23 – Oct 1, 2026
reviews are about the price or the paywall. 65 of them are 1★.
Asked for money before I was even able to use the app, has a lot of paywalled content…
Will one customer ever pay back what they cost you?
Example: Health & Fitness app, App Store, worldwide medians
lost on each paying customer, before fixed costs
What needs to be true: $0.75 or less per install, or 14.8% or more of installs paying.
What is one paying customer worth in 12 months?
Example: Health & Fitness app, App Store, worldwide medians
after store fee, refunds and operating cost
One install is worth $0.75 to you when 3.53% of installs pay.
Ads cost money up front and customers pay it back month by month. This is the cash you’d need until they do.
Example numbers, with Health & Fitness medians
needed on top of your $1,000
Payback per paying customer: not within 24 months.
Ranked App Store keywords, with drafts for your app name, subtitle and keyword field.
Example: a Spanish lessons app
| Search phrase | What it is |
|---|---|
| learn spanish | App search |
| what does hola mean | Content idea |
Where to start with Meta ads: which event to optimize for and what to set up first.