# Octuple Calc vs CalcBoard

The clearest difference is in-app purchases: Octuple Calc at none against CalcBoard's 1. Octuple Calc also leads on update cadence (every 2 weeks vs every 3 months). CalcBoard's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. CalcBoard sells 1 one-off in-app purchase. Octuple Calc asks for nothing beyond the download.

Octuple Calc ships an update every 2 weeks, CalcBoard every 3 months. The most recent releases landed on September 10, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Octuple Calc | CalcBoard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Size | 36 MB | 50 MB |
| Requires iOS | **15.8.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Colby Clark](https://appshunter.io/developer/1110053823) |

## What reviewers say

### Octuple Calc

[App page](https://appshunter.io/ios/app/octuple-calc/id6742039735)

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

**In-app purchases:** none


### CalcBoard

[App page](https://appshunter.io/ios/app/calcboard-multi-calculator/id6759535339)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcBoard Premium | $2.99 | one-time |


## Frequently asked questions

### Is Octuple Calc free?

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

### Is CalcBoard free?

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

### Do Octuple Calc or CalcBoard have ads?

Octuple Calc shows ads; CalcBoard does not.

### Which is updated more often, Octuple Calc or CalcBoard?

Octuple Calc ships an update every 2 weeks, and CalcBoard every 3 months. Most recently, Octuple Calc was updated on September 10, 2026 and CalcBoard on September 12, 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.*