# Numerix Calculator vs Parallel

The clearest difference is in-app purchases: Parallel at none against Numerix Calculator's 1. Parallel also leads on update cadence (every 6 days vs every 6 months). Numerix Calculator's advantage is iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

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

Numerix Calculator ships an update every 6 months, Parallel every 6 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Numerix Calculator | Parallel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 109 MB | 16 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Amit Kandial](https://appshunter.io/developer/1858479815) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## What reviewers say

### Numerix Calculator

[App page](https://appshunter.io/ios/app/numerix-calculator/id6759518271)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Theme | $0.99 | 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 Numerix Calculator free?

Numerix Calculator is free to download, with in-app purchases available.

### Is Parallel free?

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

### Do Numerix Calculator or Parallel have ads?

Neither Numerix Calculator nor Parallel shows ads.

### Which is updated more often, Numerix Calculator or Parallel?

Numerix Calculator ships an update every 6 months, and Parallel every 6 days. Most recently, Numerix Calculator was updated on October 9, 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.*