# + Simple Calc vs Numerix Calculator

The clearest difference is in-app purchases: + Simple Calc at none against Numerix Calculator's 1. + Simple Calc also leads on update cadence (every 5 days vs every 6 months). Numerix Calculator's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price and ads there is nothing between them.

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

+ Simple Calc ships an update every 5 days, Numerix Calculator every 6 months. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | + Simple Calc | Numerix Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/plus-simple-calc/id6448763641/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 months |
| Monetization | Free | — |
| Size | 4 MB | 109 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alejandro de la Rosa Cortes](https://appshunter.io/developer/1506520491) | [Amit Kandial](https://appshunter.io/developer/1858479815) |

## What reviewers say

### + Simple Calc

[App page](https://appshunter.io/ios/app/plus-simple-calc/id6448763641)

Perform calculations with a standard calculator that offers extensive customization. Choose from 17 color themes and custom icons, plus enjoy light and dark mode support.

**Highlights:** Standard calculator functionality, Light and dark mode, 17 color themes, Custom icons, iPhone support

**Features:** macOS Compatibility

**In-app purchases:** none


### Numerix Calculator

[App page](https://appshunter.io/ios/app/numerix-calculator/id6759518271)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Theme | $0.99 | one-time |


## Frequently asked questions

### Is + Simple Calc free?

+ Simple Calc is free to download, with no in-app purchases.

### Is Numerix Calculator free?

Numerix Calculator is free to download, with in-app purchases available.

### Do + Simple Calc or Numerix Calculator have ads?

Neither + Simple Calc nor Numerix Calculator shows ads.

### Which is updated more often, + Simple Calc or Numerix Calculator?

+ Simple Calc ships an update every 5 days, and Numerix Calculator every 6 months. Most recently, + Simple Calc was updated on October 3, 2026 and Numerix Calculator on October 9, 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.*