# Calculator Max vs Calculator HD Pro

The clearest difference is price: Calculator Max at Free against Calculator HD Pro's $9.99. Calculator HD Pro's advantage is review sentiment (95% vs 55%) and rating (4.8 vs 4.3). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Calculator Max is free to download; Calculator HD Pro costs $9.99 up front. Calculator Max sells 2 in-app purchases, starting at $4.99 per year and Calculator HD Pro sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Calculator HD Pro holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Calculator HD Pro has 11K ratings behind it against 1.9K, so its average is the more settled of the two. Written reviews point the same way: 55% of Calculator Max's written reviews are positive against 95% of Calculator HD Pro's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Calculator Max | Calculator HD Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.3 (1.9K ratings)](https://appshunter.io/ios/app/calculator-max/id364905554/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews)** |
| Number of ratings | 1.9K | **11K** |
| Positive reviews | 55.1% of reviews | **94.9% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 126 MB | 48 MB |
| Requires iOS | **15.0** | 15.2 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Kozarek](https://appshunter.io/developer/303215376) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator Max

[App page](https://appshunter.io/ios/app/calculator-max/id364905554)

This app offers a comprehensive suite of calculation tools, from basic arithmetic to advanced scientific functions. It features a history tape for easy access and reuse of entries, and a unique scribble pad for handwritten notes and equation solving on iPads. Enjoy a clean interface, multitasking support, and customizable themes.

**Highlights:** Basic and scientific calculators, History tape with export options, Handwritten notes and equation solving, Multitasking support on iPad, Customizable themes and app icons, Home Screen and Lock Screen widgets

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calculator Max Pro | $4.99 | per year |
| Calculator Max Pro | $3.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 📝 Useful note-taking feature
- 💾 Tape/history feature
- 👍 Clean and intuitive interface
- 🎨 Customizable appearance

**What reviewers complain about**

- 🐛 Compatibility issues with newer iOS versions
- 📤 Lack of export/sharing options for tape/history
- 🔍 Difficulty finding settings
- 🔀 Sensitive orientation switching

**Reported bugs**

- Crashes after iOS 26 update
- Tape not visible/functional on iPhone
- Calculator buttons/layout issues in split-screen mode

**Requested features**

- Left-handed mode
- Backspace/edit functionality
- Scientific calculator mode with tape
- Tape annotation/labeling
- Cloud/Dropbox sync for tape


### Calculator HD Pro

[App page](https://appshunter.io/ios/app/calculator-hd-pro/id565023649)

This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.

**Highlights:** Dual-line display, Multi-line input, Calculation history, Customizable layouts and themes, Full scientific functions, Left-handed mode, VoiceOver accessibility

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Widget | $1.99 | one-time |
| Multiple History Tapes | $1.99 | one-time |

**What reviewers like**

- 🚀 Significantly better than Apple's calculator
- 👍 Excellent app with great features
- 👍 Flawless app, very useful
- 👍 Fantastic calculator, meets all needs
- 👍 Best calculator app, highly recommended

**What reviewers complain about**

- 🐛 Bothersome pop-up review requests
- 🐛 Cannot delete lists in history tapes
- 🐛 Repeated rate and review pop-ups

**Reported bugs**

- Cannot delete lists in history tapes
- Ads still appear after purchasing full version

**Requested features**

- Add binary, decimal, and hex conversion
- Ability to manually sort result lines
- Add a tax calculation button


## Frequently asked questions

### Is Calculator Max free?

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

### Is Calculator HD Pro free?

Calculator HD Pro costs $9.99, and also offers in-app purchases.

### Which has better reviews, Calculator Max or Calculator HD Pro?

Calculator HD Pro is rated higher. Calculator Max averages 4.3 out of 5 from 1.9K ratings, while Calculator HD Pro averages 4.8 from 11K ratings.

### Do Calculator Max or Calculator HD Pro have ads?

Neither Calculator Max nor Calculator HD Pro shows ads.

### Which is updated more often, Calculator Max or Calculator HD Pro?

Calculator Max ships an update every 2 months, and Calculator HD Pro every 2 months. Most recently, Calculator Max was updated on October 22, 2026 and Calculator HD Pro 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.*