# Calculator Easy HD vs Octuple Calc

The clearest difference is price: Octuple Calc at Free against Calculator Easy HD's $0.99. Octuple Calc also leads on in-app purchases (none vs 7) and update cadence (every 2 weeks vs every 6 weeks). Calculator Easy HD's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.8.3). On device support there is nothing between them.

Octuple Calc is free to download; Calculator Easy HD costs $0.99 up front. Calculator Easy HD sells 7 one-off in-app purchases. Octuple Calc asks for nothing beyond the download.

Calculator Easy HD ships an update every 6 weeks, Octuple Calc every 2 weeks. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Calculator Easy HD | Octuple Calc |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.8 (1.2K ratings)](https://appshunter.io/ios/app/calculator-easy-hd/id448246366/reviews)** | — |
| Number of ratings | **1.2K** | — |
| Positive reviews | 93.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 57 MB | 36 MB |
| Requires iOS | **13.0** | 15.8.3 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Calculator Easy HD

[App page](https://appshunter.io/ios/app/calculator-easy-hd/id448246366)

This app offers a user-friendly calculator experience with a focus on ease of use. It features a live voice input, an ergonomic layout with large keys, and a usage history for quick reference. Results can be easily copied or emailed.

**Highlights:** Live voice calculator, Ergonomic key layout, Extra large '+' key, Usage record, Copy & send results, Dark Mode support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fashion Theme Pack 1 | $0.99 | one-time |
| Season Theme Pack 1 | $0.99 | one-time |
| Fashion Theme Pack 2 | $0.99 | one-time |
| Festivals Theme Pack 1 | $0.99 | one-time |
| Bird Theme Pack 1 | $0.99 | one-time |
| Fashion Theme Pack 3 | $0.99 | one-time |
| Insects Theme Pack 1 | $0.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Helpful paper tape feature
- 👍 Attractive and clear interface
- 👍 Reliable and accurate calculations
- 👍 Great for everyday calculations

**What reviewers complain about**

- 🐛 Compatibility issues with latest iOS updates
- 🐛 Occasional crashes or bugs
- 🔋 High battery consumption
- 💰 Potential hidden costs or in-app purchases

**Reported bugs**

- Unable to update app to latest version
- Buttons not responding after clearing entries
- Calculations not displaying properly

**Requested features**

- Add scientific calculator functions
- Improve editing capabilities for incorrect entries
- Provide more customization options
- Implement a dark mode theme


### 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 Calculator Easy HD free?

Calculator Easy HD costs $0.99, and also offers in-app purchases.

### Is Octuple Calc free?

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

### Do Calculator Easy HD or Octuple Calc have ads?

Octuple Calc shows ads; Calculator Easy HD does not.

### Which is updated more often, Calculator Easy HD or Octuple Calc?

Calculator Easy HD ships an update every 6 weeks, and Octuple Calc every 2 weeks. Most recently, Calculator Easy HD was updated on September 23, 2026 and Octuple Calc on September 10, 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.*