Engineering Calculator vs Calculatrice + Historique
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Engineering Calculator
This utility app helps users convert units and calculate tips, primarily for those in the US. It operates offline and aims for minimal user interaction to provide quick results. Useful for avoiding misunderstandings in business dealings due to unit differences.
- Unit conversion
- Tip calculation
- Offline functionality
- Minimalist interface
- Business negotiation aid
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米国（アメリカ）で生活するエンジニアのための単位換算、チップ計算ができるアプリです。 特にエンジニアである必要もないですが。。。 オフラインで動作可能、広告もありません。 極力少ない操作で結果が出るようになっています。 米国企業などと商談を行うときには単位の相違によって誤解が生じることが多々あります。 このアプリを使って手早く単位変換ができれば、早く理解出来、結果商談の成功に繋がります。
Calculatrice + Historique
This utility app provides essential arithmetic functions with advanced features like large number display and a comprehensive history log. It allows for character-by-character rollback and easy screen clearing, making complex calculations manageable.
- Addition, subtraction, multiplication, division
- Large number display
- Calculation history log
- Character-by-character rollback
- Screen clearing function
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Calculator brings five focused calculators into one clean, fast app. Switch between standard, scientific, fraction, percentage and unit conversion tools from the top menu. Standard calculator: large-number arithmetic, saved history and quick correction. Scientific calculator: expressions, trigonometry, logarithms, powers, roots, constants and DEG/RAD modes. Fraction calculator: add, subtract, multiply and divide fractions with simplified and decimal results. Percentage calculator: percentage of a value, proportions, percentage change and discounts. Unit converter: length, mass, temperature, area, volume, speed and time. The app works offline, keeps a clear history for everyday calculations, and supports English, Simplified Chinese, Traditional Chinese, Korean, Japanese, French, German and Spanish. Remove ads anytime with a one-time in-app purchase.
Screenshots
Verdict
The clearest difference is rating: Engineering Calculator at 4.5 against Calculatrice + Historique's 3.8. Engineering Calculator also leads on iOS requirement (12.2 vs 17.6). Calculatrice + Historique's advantage is ratings volume (20 vs 2) and update cadence (fortnightly vs monthly). On price, ads, in-app purchases and monetization model 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.
Engineering Calculator holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Calculatrice + Historique has 20 ratings behind it against 2, so its average is the more settled of the two.
Engineering Calculator ships an update monthly, Calculatrice + Historique fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Engineering Calculator | Calculatrice + Historique |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 3.8 (20 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 2 | 20 — better |
| Update frequency | Monthly | Fortnightly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.2 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Masato Kanazawa | 贺 黄 |
Customer experience
Engineering Calculator
Calculatrice + Historique
In-app purchases
Engineering Calculator
No in-app purchases
Calculatrice + Historique
No in-app purchases
Questions
Is Engineering Calculator free?
Is Calculatrice + Historique free?
Which has better reviews, Engineering Calculator or Calculatrice + Historique?
Do Engineering Calculator or Calculatrice + Historique have ads?
Which is updated more often, Engineering Calculator or Calculatrice + Historique?
Other comparisons
