# SimplyACalculator vs Parallel

The clearest difference is in-app purchases: SimplyACalculator at none against Parallel's 1. Parallel's advantage is iOS requirement (18.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

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

SimplyACalculator ships an update every 10 days, Parallel every 6 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | SimplyACalculator | 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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | — | Free |
| Size | 1 MB | 16 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [FILIP ALEXANDER LINDELL](https://appshunter.io/developer/1828898814) | [Evgenii Chizhov](https://appshunter.io/developer/6794806260) |

## What reviewers say

### SimplyACalculator

[App page](https://appshunter.io/ios/app/simplyacalculator/id6762219040)

**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 (1)**

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


## Frequently asked questions

### Is SimplyACalculator free?

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

### Is Parallel free?

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

### Do SimplyACalculator or Parallel have ads?

Neither SimplyACalculator nor Parallel shows ads.

### Which is updated more often, SimplyACalculator or Parallel?

SimplyACalculator ships an update every 10 days, and Parallel every 6 days. Most recently, SimplyACalculator was updated on October 31, 2026 and Parallel on November 6, 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.*