Calc+α vs 和暦ウォッチ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc+α
This utility app simplifies daily calculations with an intuitive interface. It features a history of your calculations, allows for easy editing and recalculation, and provides convenient tax and division functions. Organize your finances and avoid manual note-taking.
- Calculation history and review
- Edit past calculations and recalculate
- Tax-inclusive and exclusive calculation modes
- Standard and reduced tax rate switching
- Clear division and remainder display
- Create and copy calculation sheets
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Calc+α is an app designed to make daily calculations easier and more efficient. Each feature is intuitive, enabling anyone to use it effortlessly. Whenever there's a need for calculations, Calc+α will be your reliable partner. **Calculation Sheet with History** Calculator+α saves your past calculations in a list, allowing you to review them anytime. It displays subtotals for each calculation, making verification simple. For different purposes like travel or shopping, you can create and copy various sheets to organize your calculations. No need to note down the calculation results on paper anymore. **Mistake Correction Feature** No worries about mistakes. You can edit past calculations and recalculate. By changing numbers, adding or removing rows, you can proceed with your calculations accurately. **Tax Rate Calculation** Switch between tax-inclusive and tax-exclusive calculations with just one button. Furthermore, effortlessly switch between standard and reduced tax rates, smoothing out calculations for products with different tax rates. **Division and Remainder Calculation** With a clear remainder display, you can instantly grasp intermediate results in calculations. By setting the truncation position, you can adjust the display of remainders to your liking. No more headaches with remainders in division.
和暦ウォッチ
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「和暦ウォッチ」は、現在の元号と和暦年や、和暦と西暦の対応関係、十二支・干支を簡単に確認できるアプリです。 日常生活や仕事で和暦を使用する際に、和暦の確認がこれまで以上に快適になります。 【主な機能】 ■ コンプリケーション対応 現在の元号と和暦年を文字盤に表示することで、Apple Watchを見るだけで簡単に和暦年を確認できます。 ■ 和暦と西暦の対応表 Digital Crownを回すだけで、令和から明治までの和暦と西暦の対応を素早くチェック可能できます。 ■ 絵文字で十二支や干支を把握 年の詳細では、十二支や干支の情報を確認できます。また、元号の開始日と終了日についても記載されています。 ぜひお試しください!
Screenshots
Verdict
The clearest difference is ads: 和暦ウォッチ at none against Calc+α's shown. 和暦ウォッチ also leads on update cadence (every 4 days vs every 3 weeks) and device support (3 vs 1). On price and in-app purchases 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.
Calc+α ships an update every 3 weeks, 和暦ウォッチ every 4 days. The most recent releases landed on July 27, 2026 and September 28, 2026 respectively.
| Parameter | Calc+α | 和暦ウォッチ |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPod, Apple Watch — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Ariane Inc. | Yutaro Yoshizawa |
In-app purchases
Calc+α
No in-app purchases
和暦ウォッチ
No in-app purchases







