# Basic Calculator With BIDMAS vs Keyboard Theme

The clearest difference is ads: Keyboard Theme at none against Basic Calculator With BIDMAS's shown. Keyboard Theme also leads on update cadence (every 2 days vs weekly) and iOS requirement (15.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Basic Calculator With BIDMAS 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.

Basic Calculator With BIDMAS ships an update weekly, Keyboard Theme every 2 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Basic Calculator With BIDMAS | Keyboard Theme |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/basic-calculator-with-bidmas/id6758761367/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 7 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **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

### Basic Calculator With BIDMAS

[App page](https://appshunter.io/ios/app/basic-calculator-with-bidmas/id6758761367)

A powerful and customizable calculator app that supports standard calculations and order of operations (PEMDAS). Personalize your experience with numerous themes and button styles, and utilize smart features like calculation history and currency conversion. Upgrade to unlock all premium features permanently.

**Highlights:** Order of operations (PEMDAS) mode, Over 50 color themes, Calculation history, Adjustable decimal precision, Currency conversions, Sales tax calculations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Beans Calculator | $2.99 | 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 Basic Calculator With BIDMAS free?

Basic Calculator With BIDMAS 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 Basic Calculator With BIDMAS or Keyboard Theme have ads?

Basic Calculator With BIDMAS shows ads; Keyboard Theme does not.

### Which is updated more often, Basic Calculator With BIDMAS or Keyboard Theme?

Basic Calculator With BIDMAS ships an update weekly, and Keyboard Theme every 2 days. Most recently, Basic Calculator With BIDMAS was updated on October 31, 2026 and Keyboard Theme on October 31, 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.*