# マルチ計算機 vs Calc Engine

The clearest difference is in-app purchases: マルチ計算機 at none against Calc Engine's 1. マルチ計算機 also leads on iOS requirement (9.0 vs 18). Calc Engine's advantage is ads (none vs shown) and update cadence (daily vs every 26 months). On price there is nothing between them.

Both are free to download. Calc Engine sells 1 one-off in-app purchase. マルチ計算機 asks for nothing beyond the download.

マルチ計算機 ships an update every 26 months, Calc Engine daily. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | マルチ計算機 | Calc Engine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calc-engine/id1061766849/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 26 months | **Daily** |
| Monetization | — | Free |
| Size | 9 MB | 17 MB |
| Requires iOS | **9.0** | 18 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [YUUKI TANIHARA](https://appshunter.io/developer/400410577) | [VersaEdge Software, LLC](https://appshunter.io/developer/301294952) |

## What reviewers say

### マルチ計算機

[App page](https://appshunter.io/ios/app/id403926736)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calc Engine

[App page](https://appshunter.io/ios/app/calc-engine/id1061766849)

A highly customizable calculator with advanced features like graphing, equation solving, and unit conversion. Design your own keyboards and functions to streamline your workflow across Apple devices.

**Highlights:** Customizable keyboard layouts, User-defined functions and constants, Live equation graphing, Equation solving, Extensive unit conversions, Programmer mode (hex, binary, octal), Cross-device syncing

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calc Engine+ | $9.99 | one-time |


## Frequently asked questions

### Is マルチ計算機 free?

マルチ計算機 is free to download, with no in-app purchases.

### Is Calc Engine free?

Calc Engine is free to download, with in-app purchases available.

### Do マルチ計算機 or Calc Engine have ads?

マルチ計算機 shows ads; Calc Engine does not.

### Which is updated more often, マルチ計算機 or Calc Engine?

マルチ計算機 ships an update every 26 months, and Calc Engine daily. Most recently, マルチ計算機 was updated on October 11, 2026 and Calc Engine on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*