# Cathy's Calculator for iPad vs Basic Calculator With BIDMAS

The clearest difference is in-app purchases: Cathy's Calculator for iPad at none against Basic Calculator With BIDMAS's 1. Cathy's Calculator for iPad also leads on ads (none vs shown) and iOS requirement (15.4 vs 17.0). Basic Calculator With BIDMAS's advantage is update cadence (weekly vs every 38 months). On price and device support there is nothing between them.

Both are free to download. Basic Calculator With BIDMAS sells 1 one-off in-app purchase. Cathy's Calculator for iPad asks for nothing beyond the download.

Cathy's Calculator for iPad ships an update every 38 months, Basic Calculator With BIDMAS weekly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cathy's Calculator for iPad | Basic Calculator With BIDMAS |
| --- | --- | --- |
| 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 | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 38 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 91 MB |
| Requires iOS | **15.4** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sanjay Rao](https://appshunter.io/developer/1628008593) | [Paul Flowers](https://appshunter.io/developer/1874852072) |

## What reviewers say

### Cathy's Calculator for iPad

[App page](https://appshunter.io/ios/app/cathys-calculator-for-ipad/id1628009364)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Cathy's Calculator for iPad free?

Cathy's Calculator for iPad is free to download, with no in-app purchases.

### Is Basic Calculator With BIDMAS free?

Basic Calculator With BIDMAS is free to download, with in-app purchases available.

### Do Cathy's Calculator for iPad or Basic Calculator With BIDMAS have ads?

Basic Calculator With BIDMAS shows ads; Cathy's Calculator for iPad does not.

### Which is updated more often, Cathy's Calculator for iPad or Basic Calculator With BIDMAS?

Cathy's Calculator for iPad ships an update every 38 months, and Basic Calculator With BIDMAS weekly. Most recently, Cathy's Calculator for iPad was updated on October 27, 2026 and Basic Calculator With BIDMAS 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.*