# Calc Engine vs Calculee

The clearest difference is price: Calc Engine at Free against Calculee's $2.99. Calc Engine also leads on update cadence (daily vs every 5 weeks). Calculee's advantage is iOS requirement (14.3 vs 18). On ads, in-app purchases and device support there is nothing between them.

Calc Engine is free to download; Calculee costs $2.99 up front. Calc Engine sells 1 one-off in-app purchase and Calculee sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calc Engine ships an update daily, Calculee every 5 weeks. The most recent releases landed on November 12, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Calc Engine | Calculee |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/calc-engine/id1061766849/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 5 weeks |
| Monetization | Free | — |
| Size | 17 MB | 1 MB |
| Requires iOS | 18 | **14.3** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [VersaEdge Software, LLC](https://appshunter.io/developer/301294952) | [Mikolaj Adamowicz](https://appshunter.io/developer/1448003183) |

## 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 |


### Calculee

[App page](https://appshunter.io/ios/app/calculee/id1633369389)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Colors | $0.99 | one-time |


## Frequently asked questions

### Is Calc Engine free?

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

### Is Calculee free?

Calculee costs $2.99, and also offers in-app purchases.

### Do Calc Engine or Calculee have ads?

Neither Calc Engine nor Calculee shows ads.

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

Calc Engine ships an update daily, and Calculee every 5 weeks. Most recently, Calc Engine was updated on November 12, 2026 and Calculee on November 7, 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.*