# Octodecuple Calc vs Calculator

The clearest difference is in-app purchases: Octodecuple Calc at none against Calculator's 2. Octodecuple Calc also leads on update cadence (every 2 weeks vs every 3 months) and device support. On price and iOS requirement there is nothing between them.

Both are free to download. Calculator sells 2 in-app purchases, starting at $1.99 per month. Octodecuple Calc asks for nothing beyond the download.

Octodecuple Calc ships an update every 2 weeks, Calculator every 3 months. Both last shipped on October 25, 2026.

## The numbers

| Metric | Octodecuple Calc | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | — |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 36 MB | 29 MB |
| Requires iOS | 15.8.3 | **15.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Bhaskar Rao](https://appshunter.io/developer/1862718308) |

## What reviewers say

### Octodecuple Calc

[App page](https://appshunter.io/ios/app/octodecuple-calc/id6742386286)

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

**In-app purchases:** none


### Calculator

[App page](https://appshunter.io/ios/app/calculator-simple-calculator/id6760180583)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |


## Frequently asked questions

### Is Octodecuple Calc free?

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

### Is Calculator free?

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

### Which is updated more often, Octodecuple Calc or Calculator?

Octodecuple Calc ships an update every 2 weeks, and Calculator every 3 months. Most recently, Octodecuple Calc was updated on October 25, 2026 and Calculator on October 25, 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.*