# Calc Engine vs Calculator

The clearest difference is in-app purchases: Calculator at none against Calc Engine's 1. Calculator also leads on iOS requirement (15.0 vs 18). Calc Engine's advantage is update cadence (daily vs every 2 days) and ratings volume (4 vs 1). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Calc Engine sells 1 one-off in-app purchase. Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Calc Engine against 5.0 for Calculator. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Calc Engine ships an update daily, Calculator every 2 days. The most recent releases landed on August 31, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Calc Engine | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/calc-engine/id1061766849/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/calculator/id1535603699/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 days |
| Monetization | Free | Free |
| Size | 17 MB | 1 MB |
| Requires iOS | 18 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VersaEdge Software, LLC](https://appshunter.io/developer/301294952) | [宏立 刘](https://appshunter.io/developer/1535603701) |

## What reviewers say

### 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 |


### Calculator

[App page](https://appshunter.io/ios/app/calculator/id1535603699)

A minimalist calculator app offering a clean interface and customizable theme colors. Enjoy a streamlined calculation experience with a focus on simplicity and user-friendliness.

**Highlights:** Simple calculator functionality, Customizable theme colors, Minimalist design, Streamlined user experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calc Engine free?

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

### Is Calculator free?

Calculator is free to download, with no in-app purchases.

### Which has better reviews, Calc Engine or Calculator?

Calc Engine and Calculator are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Calc Engine or Calculator have ads?

Neither Calc Engine nor Calculator shows ads.

### Which is updated more often, Calc Engine or Calculator?

Calc Engine ships an update daily, and Calculator every 2 days. Most recently, Calc Engine was updated on August 31, 2026 and Calculator on September 11, 2026.

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