# Chairbook Formula Book — Last mix. On this phone.

> Last mix. On this phone. (iPhone/iPad app by Burak Kocatepe.)

- Source: https://appshunter.io/ios/app/chairbook-formula-book/id6810118777 (this page in markdown: same URL + `.md`)
- Developer: [Burak Kocatepe](https://appshunter.io/developer/1853217103)
- Category: Lifestyle, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 7 MB
- Languages: American English, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Italian, Japanese, Korean and 8 more
- Released: 2026-09-16
- Data updated: 2026-09-17
- User reviews in markdown: https://appshunter.io/ios/app/chairbook-formula-book/id6810118777/reviews.md

## What is Chairbook Formula Book?

Chairbook keeps the color. Booksy keeps the appointment.

Last time’s mix — shade codes, grams, developer, and a photo — stays on this iPhone. Copy it next visit. Scale the bowl. Set 35 minutes and get a ping. No account. No cloud. No free tier.

WHAT’S IN THE BOOK
• Client cards with the last mix on the card
• Copy last mix — scale the grams, save a new formula, history stays
• Bowl scale — change the total, keep the ratio
• Mix timer — we’ll ping you so color doesn’t sit in the chair
• Formula photos on this phone so you can match last time

Chairbook is paid access. There is no free version.

Chairbook is an auto-renewable subscription, or a one-time Lifetime purchase.

Weekly: $1.99 per week, with a 3-day free trial that is full paid access (same as subscribed). Then $1.99 every week until you cancel.
Annual: $29.99 per year. Best value — about $0.58/week.
Lifetime: $49.99 once. Does not auto-renew. Lifetime access on this Apple ID.

Payment is charged to your Apple ID. Subscriptions auto-renew unless you cancel at least 24 hours before the current period ends. Manage or cancel in iOS Settings → Apple ID → Subscriptions. Restore purchases is in the app.

Privacy: Chairbook does not collect data. Formula photos stay on this iPhone.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Annual | $29.99 | per year |
| Weekly | $1.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $49.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-09-16

No release notes.

## More apps by Burak Kocatepe

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- [Roguelike Block Puzzle](https://appshunter.io/ios/app/roguelike-block-puzzle/id6776018567)

All apps by Burak Kocatepe: https://appshunter.io/developer/1853217103

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-17.*