# The iCalculator vs Parallel

The clearest difference is price: Parallel at Free against The iCalculator's $0.99. Parallel also leads on update cadence (every 6 days vs every 76 months). On rating, review sentiment, ratings volume and ads there is nothing between them.

Parallel is free to download; The iCalculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for The iCalculator against 5.0 for Parallel. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

The iCalculator ships an update every 76 months, Parallel every 6 days. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | The iCalculator | Parallel |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/the-icalculator/id848344558/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 76 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 12 MB | 16 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [HELM Coders LLC](https://appshunter.io/developer/825880796) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## What reviewers say

### The iCalculator

[App page](https://appshunter.io/ios/app/the-icalculator/id848344558)

A calculator app designed to offer a superior user experience compared to standard device calculators. It aims to provide the functionality and interface that users expect from a modern calculation tool.

**Highlights:** Intuitive user interface, Enhanced calculation functionality, Designed for iOS devices, Free to download and use

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

**In-app purchases:** none


### 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 The iCalculator free?

The iCalculator costs $0.99, with no in-app purchases.

### Is Parallel free?

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

### Which has better reviews, The iCalculator or Parallel?

The iCalculator and Parallel are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do The iCalculator or Parallel have ads?

Neither The iCalculator nor Parallel shows ads.

### Which is updated more often, The iCalculator or Parallel?

The iCalculator ships an update every 76 months, and Parallel every 6 days. Most recently, The iCalculator was updated on October 1, 2026 and Parallel on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*