For independent colorists
FormulaBook is the client formula book you keep mid-appointment, gloves on. Search a name, see the whole color history, repeat last formula in one tap. Nothing lives in the cloud.
Free for 10 clients · $19.99 once to unlock unlimited, forever.
Clients
Every screen assumes you're standing, mid-service, and need an answer in one glance.
Formulas render in large, monospace-clear type — readable at arm's length while you're mixing, gloves on.
Pull up a client, tap once, and her last formula pre-fills a new entry. No retyping the same 40g 6N.
Type the formula the way you think, or break it into product / amount / developer / time rows. Never forced.
Attach result photos to any entry. Useful, never required.
A huge search bar and alphabet index. Recent clients float to the top automatically.
Automatic local backup, one-tap export to PDF or CSV, AirDrop to a new phone. Your book can never be lost.
Incumbents charge about $36/year. FormulaBook is less than 7 months of that — once, forever.
Free
$0
No account, no time limit, no ads.
One-time unlock
$19.99
Pay once. Keep it forever. No subscription.
Yes. Every formula, client, and photo lives on your device. No connection needed at the chair.
No. There's no sign-up, no login, no email required to use the app.
No. Free covers 10 clients. Unlimited clients is a single $19.99 purchase, forever — no recurring charge.
Yes, anytime. Export your whole book as a PDF or CSV, or AirDrop it straight to a new phone. Even if FormulaBook disappears, your formulas are yours.
iPhone, via the App Store.