# Calculator Plus Basic & PEMDAS vs Parallel

The clearest difference is in-app purchases: Parallel at none against Calculator Plus Basic & PEMDAS's 1. Parallel also leads on ads (none vs shown). Calculator Plus Basic & PEMDAS's advantage is iOS requirement (15.0 vs 18.0). On price, rating, review sentiment and ratings volume there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Calculator Plus Basic & PEMDAS against 5.0 for Parallel. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Calculator Plus Basic & PEMDAS ships an update weekly, Parallel every 6 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Calculator Plus Basic & PEMDAS | Parallel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/calculator-plus-basic-and-pemdas/id6758761367/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 91 MB | 16 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Paul Flowers](https://appshunter.io/developer/1874852072) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## 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 |


### Parallel

[App page](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258)

Perform multiple calculations simultaneously with a drag-and-drop interface. Features a scientific calculator, currency and crypto converter, and history saving with optional privacy locks. Customize with themes and fonts.

**Highlights:** Run 2, 3, or 4 calculations side-by-side, Drag and drop calculation arrangement, Scientific calculator mode, Currency and crypto converter, Save calculation history with notes, Face ID/passcode lock for privacy, Home screen widget and Quick Menu access

**Features:** Apple Watch app

**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 Parallel free?

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

### Which has better reviews, Calculator Plus Basic & PEMDAS or Parallel?

Calculator Plus Basic & PEMDAS and Parallel are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

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

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

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

Calculator Plus Basic & PEMDAS ships an update weekly, and Parallel every 6 days. Most recently, Calculator Plus Basic & PEMDAS was updated on October 2, 2026 and Parallel on October 10, 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.*