# Calculator Plus Basic & PEMDAS vs Keyboard Theme

The clearest difference is ads: Keyboard Theme at none against Calculator Plus Basic & PEMDAS's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Calculator Plus Basic & PEMDAS sells 1 one-off in-app purchase and Keyboard Theme sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Calculator Plus Basic & PEMDAS ships an update every 3 days, Keyboard Theme every 2 days. The most recent releases landed on September 14, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Calculator Plus Basic & PEMDAS | Keyboard Theme |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 7 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Flowers](https://appshunter.io/developer/1874852072) | [Sandro Janjghava](https://appshunter.io/developer/1608682118) |

## 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 |


### Keyboard Theme

[App page](https://appshunter.io/ios/app/keyboard-theme/id6761076681)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $3.99 | per month |
| One Time Purchase | $12.99 | one-time |


## Frequently asked questions

### Is Calculator Plus Basic & PEMDAS free?

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

### Is Keyboard Theme free?

Keyboard Theme is free to download, with in-app purchases available.

### Do Calculator Plus Basic & PEMDAS or Keyboard Theme have ads?

Calculator Plus Basic & PEMDAS shows ads; Keyboard Theme does not.

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

Calculator Plus Basic & PEMDAS ships an update every 3 days, and Keyboard Theme every 2 days. Most recently, Calculator Plus Basic & PEMDAS was updated on September 14, 2026 and Keyboard Theme on September 13, 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.*