# Adam's Calc vs Octuple Calc

The clearest difference is in-app purchases: Octuple Calc at none against Adam's Calc's 1. Octuple Calc also leads on update cadence (every 2 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Adam's Calc ships an update every 4 months, Octuple Calc every 2 weeks. The most recent releases landed on September 23, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Adam's Calc | Octuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/adams-calc/id1296681283/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RD Concepts](https://appshunter.io/developer/1293498470) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Adam's Calc

[App page](https://appshunter.io/ios/app/adams-calc/id1296681283)

A utility calculator that adds memory functionality to standard calculations. Designed to make your device's calculator more helpful by remembering previous results.

**Highlights:** Memory function for calculations, Enhanced utility calculator, Intuitive design, Remembers previous results

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertising | $2.99 | one-time |


### Octuple Calc

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Adam's Calc free?

Adam's Calc is free to download, with in-app purchases available.

### Is Octuple Calc free?

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

### Do Adam's Calc or Octuple Calc have ads?

Both Adam's Calc and Octuple Calc show ads.

### Which is updated more often, Adam's Calc or Octuple Calc?

Adam's Calc ships an update every 4 months, and Octuple Calc every 2 weeks. Most recently, Adam's Calc was updated on September 23, 2026 and Octuple Calc on September 28, 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.*