# Starling Calculator vs Parallel

Starling Calculator and Parallel are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Starling Calculator sells 3 in-app purchases, starting at $4.99 per year and Parallel sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Starling Calculator | Parallel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/parallel-multi-calculator/id6794806258/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Monetization | — | Free |
| Size | 16 MB | 16 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [文之 虞](https://appshunter.io/developer/1893499984) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## What reviewers say

### Starling Calculator

[App page](https://appshunter.io/ios/app/starling-calculator/id6762246215)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starling Pro | $4.99 | per year |
| Starling Pro | $2.99 | one-time |
| Starling Pro | $6.99 | 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 (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Parallel Pro | $2.99 | one-time |


## Frequently asked questions

### Is Starling Calculator free?

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

### Is Parallel free?

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

### Do Starling Calculator or Parallel have ads?

Neither Starling Calculator nor Parallel shows ads.

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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.*