# Calculator Plus Basic & PEMDAS vs Arithon Calculator

The clearest difference is in-app purchases: Arithon Calculator at none against Calculator Plus Basic & PEMDAS's 1. Arithon Calculator also leads on ads (none vs shown). Calculator Plus Basic & PEMDAS's advantage is update cadence (every 3 days vs weekly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator Plus Basic & PEMDAS sells 1 one-off in-app purchase. Arithon Calculator asks for nothing beyond the download.

Calculator Plus Basic & PEMDAS ships an update every 3 days, Arithon Calculator weekly. The most recent releases landed on September 14, 2026 and June 19, 2026 respectively.

## The numbers

| Metric | Calculator Plus Basic & PEMDAS | Arithon Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calculator-plus-basic-and-pemdas/id6758761367/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 31 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Flowers](https://appshunter.io/developer/1874852072) | [Mind Mirage Apps Ltd](https://appshunter.io/developer/1896465995) |

## What reviewers say

### Calculator Plus Basic & PEMDAS

[App page](https://appshunter.io/ios/app/calculator-plus-basic-and-pemdas/id6758761367)

This app offers a customizable calculator experience with a clean interface and advanced features like PEMDAS mode and calculation history. Personalize its appearance with numerous themes and button styles to suit your preferences.

**Highlights:** PEMDAS order of operations mode, Over 50 customizable color themes, Full calculation history, Adjustable decimal precision, Copy and paste functionality, Sales tax calculations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Beans Calculator | $4.99 | one-time |


### Arithon Calculator

[App page](https://appshunter.io/ios/app/arithon-calculator/id6767340730)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator Plus Basic & PEMDAS free?

Calculator Plus Basic & PEMDAS is free to download, with in-app purchases available.

### Is Arithon Calculator free?

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

### Do Calculator Plus Basic & PEMDAS or Arithon Calculator have ads?

Calculator Plus Basic & PEMDAS shows ads; Arithon Calculator does not.

### Which is updated more often, Calculator Plus Basic & PEMDAS or Arithon Calculator?

Calculator Plus Basic & PEMDAS ships an update every 3 days, and Arithon Calculator weekly. Most recently, Calculator Plus Basic & PEMDAS was updated on September 14, 2026 and Arithon Calculator on June 19, 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.*