D vs バック計算
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
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店舗従業員向け管理システム
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
Screenshots
Verdict
The clearest difference is ads: D at none against バック計算's shown. バック計算's advantage is update cadence (every 2 days vs fortnightly). On price, in-app purchases, device support and iOS requirement 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.
D ships an update fortnightly, バック計算 every 2 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.
| Parameter | D | バック計算 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 75 MB | 32 MB |
| Age rating | 17+ | 12+ |
| Developer | CLUTCH, INC. (Japan) | Yujiro Sakai |
In-app purchases
D
No in-app purchases
バック計算
No in-app purchases




