# Calc Engine vs Input Calculator

The clearest difference is in-app purchases: Input Calculator at none against Calc Engine's 1. Calc Engine's advantage is ratings volume (5 vs 1) and device support (4 vs 2). 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. Input 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 Input Calculator. That said, the two scores are not equally well evidenced: Calc Engine has 5 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Calc Engine | Input Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/calc-engine/id1061766849/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/input-calculator/id6702001389/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Daily | — |
| Monetization | Free | Free |
| Size | 17 MB | 1 MB |
| Requires iOS | 18 | 18.0 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VersaEdge Software, LLC](https://appshunter.io/developer/301294952) | [Shafqat Rahman](https://appshunter.io/developer/1743700538) |

## 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 |


### Input Calculator

[App page](https://appshunter.io/ios/app/input-calculator/id6702001389)

This app offers both basic and scientific calculation modes, supporting a wide range of operations including trigonometry and logarithms. It features a clear expression display, customizable themes, and haptic feedback for an enhanced user experience.

**Highlights:** Basic and scientific calculation modes, Trigonometric and logarithmic functions, Full expression display, Dark and light mode options, Haptic feedback on button press, Theme customization, Responsive layout for various devices

**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 Input Calculator free?

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

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

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

### Do Calc Engine or Input Calculator have ads?

Neither Calc Engine nor Input Calculator shows ads.

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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.*