xCalc vs DriverDay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
xCalc
A straightforward and user-friendly calculator app for performing basic arithmetic, tax calculations, and unit conversions. It offers memory functions, a calculation history, and customizable background colors for a personalized experience.
- Basic arithmetic operations
- Memory functions
- Tax calculation
- Calculation history
- Unit Converter
- Customizable background colors
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xCalc is a simple and easy-to-use calculator app. Key Features: ・Basic arithmetic operations ・Memory functions ・Tax calculation ・Calculation history ・Unit Converter ・Customizable background colors ・Wallpaper support (iPhone only) ・Tap and hold to copy results
DriverDay
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DriverDay(ドライバーデイ)は、日本の緑ナンバー事業者とドライバーのために設計された日報・運行管理アプリです。 ドライバーはスマートフォンから日報を簡単に入力・送信でき、出勤情報や車両状況は自動的に会社システムと連携。 紙の記録をなくし、業務効率を大幅に向上させます。 さらに、車載リアルタイム翻訳機能により、多言語の乗客ともスムーズにコミュニケーションが可能となり、安全で快適な運行をサポートします。
Screenshots
Verdict
The clearest difference is price: DriverDay at Free against xCalc's $0.99. DriverDay also leads on update cadence (every 3 weeks vs every 8 months) and iOS requirement (16.4 vs 26.2). On ads, 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
DriverDay is free to download; xCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
xCalc ships an update every 8 months, DriverDay every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.
| Parameter | xCalc | DriverDay |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 8 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 26.2 | 16.4 — better |
| Further details — not scored | ||
| Size | 1 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | Kouichi Abe | NTK |
In-app purchases
xCalc
No in-app purchases
DriverDay
No in-app purchases







