バック計算 vs PatronBook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
バック計算
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The ultimate back calculation & salary management app for nightlife workers. Track your drink backs, nomination backs, champagne backs and more with just a tap — see your daily earnings in real time. 【Cast Mode — Track Your Own Earnings】 • Record backs by category (drinks, nominations, champagne, etc.) • View today's income (hourly wage + backs) in real time • Check monthly salary, work days, and back breakdown at a glance • Calendar view with color-coded daily earnings • Reports with monthly trends and category-by-category graphs 【Owner Mode — Manage Your Venue's Finances】 • Enter daily reports for each staff member's attendance and backs • Track venue sales, labor costs, and profit in real time • Calendar view of daily sales and profit • Staff salary rankings and monthly summaries 【Supported Venues】 Hostess clubs / Snack bars / Concept cafes / Girls bars / Bars / Lounges 【Privacy First】 • All data stored locally on your device • Zero data sent to servers • No personal information collected 【Ready to Use】 • Built-in back item templates by venue type • Supports both hourly and fixed pay • Dark theme for discreet use during work
PatronBook
Manage client notes, visits, and sales for hospitality professionals. Track guest preferences, log interactions, and view sales performance. Receive birthday reminders and secure your data locally with app lock.
- Easy guest notes with photos and tags
- Quick visit logging
- Sales tracking and goal progress
- Birthday reminders
- Local data storage
- Face ID/passcode app lock
- Guest rankings (Premium)
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PatronBook is a simple, friendly client-notes app for everyone working in hospitality — a perfect fit for nightlife work such as cabaret clubs, lounges, and bars. Nothing complicated: just note your guests and log their visits, and your sales and hard work become visible at a glance. ◆ Easy guest notes - Names, nicknames, birthdays, and contact info - Favorite drinks and bottles, topics you talked about, hobbies, and work details - Organize your way with photos, emoji avatars, tags, and favorite stars ◆ Log a visit in 10 seconds - Tap to choose visit / request / dinner date, then enter the amount - Quick buttons for the amounts you use most ◆ See your sales at a glance - This month's sales and goal progress right on Home - Daily and monthly charts, plus guest rankings (Premium) - Look back on the calendar: who came, when, and how much ◆ Birthday reminders - Get notified on the morning of each guest's birthday ◆ Your secrets stay safe - Your data is stored only on your phone - Lock the app with Face ID or a passcode ◆ Premium (subscription) - Register unlimited guests (free plan: up to 3) - Unlock every feature, including sales charts and guest rankings - Monthly and yearly plans (save two months with yearly) About subscriptions: - Payment will be charged to your Apple ID account - Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period - Your account will be charged for renewal within 24 hours prior to the end of the current period - You can manage or cancel anytime in Settings > Apple ID > Subscriptions Make your hard work count. PatronBook helps you take better care of every guest. Support site https://adolfoi.info/ Privacy Policy https://adolfoi.info/page_id197/ Terms of Use https://adolfoi.info/page_id501/ Contact https://adolfoi.info/support/
Screenshots
Verdict
The clearest difference is ads: PatronBook at none against バック計算's shown. バック計算's advantage is update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
バック計算 ships an update every 2 days, PatronBook every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | バック計算 | PatronBook |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 days — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 32 MB | 14 MB |
| Age rating | 12+ | 17+ |
| Developer | Yujiro Sakai | Mitsuhiro Hashimoto |
In-app purchases
バック計算
No in-app purchases
PatronBook
No in-app purchases



