# Calculator HD for iPad. vs Classicalc calculator

The clearest difference is price: Calculator HD for iPad. at Free against Classicalc calculator's $0.99. Calculator HD for iPad. also leads on rating (4.3 vs 3.8) and update cadence (every 2 months vs every 20 months). Classicalc calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On iOS requirement there is nothing between them.

Calculator HD for iPad. is free to download; Classicalc calculator costs $0.99 up front. Calculator HD for iPad. sells 1 one-off in-app purchase. Classicalc calculator asks for nothing beyond the download.

Calculator HD for iPad. holds the better App Store score, 4.3 against 3.8. Both are backed by a comparable volume of ratings — 41 and 13 respectively. Written reviews point the same way: 83% of Calculator HD for iPad.'s written reviews are positive against 63% of Classicalc calculator's.

Calculator HD for iPad. ships an update every 2 months, Classicalc calculator every 20 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Calculator HD for iPad. | Classicalc calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.3 (41 ratings)](https://appshunter.io/ios/app/calculator-hd-for-ipad/id581460240/reviews)** | [3.8 (13 ratings)](https://appshunter.io/ios/app/classicalc-calculator/id989434780/reviews) |
| Number of ratings | **41** | 13 |
| Positive reviews | **83.4% of reviews** | 62.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 20 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 100 MB | 14 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [良峰 侯](https://appshunter.io/developer/654444245) | [Lukasz Kowalski](https://appshunter.io/developer/792954012) |

## What reviewers say

### Calculator HD for iPad.

[App page](https://appshunter.io/ios/app/calculator-hd-for-ipad/id581460240)

This app provides a powerful and beautifully designed calculator experience for your iPad. It offers both basic and scientific functions, with customizable skins and a history log for your calculations. Enjoy a familiar interface with enhanced features.

**Highlights:** Live voice calculator, Basic and scientific modes, Calculation history, Customizable skins, Display of calculation steps, Dark Mode support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 💡 History of calculations
- 💡 Scientific functions available
- 👍 Large, clear keys
- 👍 Good design/interface

**What reviewers complain about**

- 🐛 Slow to open/load
- 🐛 Inconsistent calculation results (specific instances)
- 🐛 Missing algebraic functions (reported by one user)
- 🐛 Language issues (German not available as expected)
- 🐛 Ad banners present (for many users)

**Reported bugs**

- App crashes after update
- Calculation errors (e.g., 3^2 - 2^2 = 49, 2^4=4)
- Ad banner is intrusive and distracting
- Paid app still shows ads
- Slow to open/load

**Requested features**

- Remove ad banner
- Add German language support
- Improve calculation accuracy for complex functions
- Make an ad-free version available
- Add Binary, Octal, Decimal, and Hexadecimal interconversions


### Classicalc calculator

[App page](https://appshunter.io/ios/app/classicalc-calculator/id989434780)

This calculator app offers instant calculations as you type, following the mathematical order of operations. It features unique piano sound themes and allows seamless continuation of calculations across iPhone and Apple Watch. Your equations are automatically saved for convenience.

**Highlights:** Instant calculation as you type, Mathematical order of operators, Cross-device continuity (iPhone/Watch), Automatic equation saving, 14 piano sound themes, Copy result to clipboard

**In-app purchases:** none


## Frequently asked questions

### Is Calculator HD for iPad. free?

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

### Is Classicalc calculator free?

Classicalc calculator costs $0.99, with no in-app purchases.

### Which has better reviews, Calculator HD for iPad. or Classicalc calculator?

Calculator HD for iPad. is rated higher. Calculator HD for iPad. averages 4.3 out of 5 from 41 ratings, while Classicalc calculator averages 3.8 from 13 ratings.

### Do Calculator HD for iPad. or Classicalc calculator have ads?

Calculator HD for iPad. shows ads; Classicalc calculator does not.

### Which is updated more often, Calculator HD for iPad. or Classicalc calculator?

Calculator HD for iPad. ships an update every 2 months, and Classicalc calculator every 20 months. Most recently, Calculator HD for iPad. was updated on November 1, 2026 and Classicalc calculator on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*