# Multi Calculator vs Parallel

The clearest difference is in-app purchases: Parallel at none against Multi Calculator's 3. Parallel also leads on ads (none vs shown) and update cadence (every 6 days vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Multi Calculator sells 3 in-app purchases, starting at $0.99 per month. Parallel asks for nothing beyond the download.

Multi Calculator ships an update every 4 months, Parallel every 6 days. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Multi 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 | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 11 MB | 16 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [LemonClip](https://appshunter.io/developer/1698254460) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## What reviewers say

### Multi Calculator

[App page](https://appshunter.io/ios/app/multi-calculator-all-in-one/id6760176698)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annual | $4.99 | per year |
| Lifetime | $9.99 | 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 Multi Calculator free?

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

### Is Parallel free?

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

### Do Multi Calculator or Parallel have ads?

Multi Calculator shows ads; Parallel does not.

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

Multi Calculator ships an update every 4 months, and Parallel every 6 days. Most recently, Multi Calculator was updated on October 12, 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.*