# Calculator + vs Calculator HD Pro

The clearest difference is price: Calculator + at Free against Calculator HD Pro's $9.99. Calculator + also leads on update cadence (every 4 days vs every 2 months). Calculator HD Pro's advantage is ads (none vs shown) and rating (4.8 vs 4.6). On ratings volume, in-app purchases, monetization model and device support there is nothing between them.

Calculator + is free to download; Calculator HD Pro costs $9.99 up front. Calculator + sells 12 in-app purchases, starting at $4.99 per month 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 4.6. Both are backed by a comparable volume of ratings — 10K and 11K respectively. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 95% of Calculator HD Pro's.

Calculator + ships an update every 4 days, Calculator HD Pro every 2 months. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Calculator + | Calculator HD Pro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [4.6 (10K ratings)](https://appshunter.io/ios/app/calculator-plus/id351815470/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews)** |
| Number of ratings | 10K | **11K** |
| Positive reviews | 84.9% of reviews | **94.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 48 MB | 48 MB |
| Requires iOS | 16.4 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [xNeat.com](https://appshunter.io/developer/327498295) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Calculator +

[App page](https://appshunter.io/ios/app/calculator-plus/id351815470)

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

**Highlights:** Free basic and scientific calculator, Intuitive interface with equation and result display, Fraction and percent support, Advanced editing capabilities, Polynomial and linear equation solver, Graphing calculator, Unit conversion and geometric calculators

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scientific Calculator | $4.99 | per month |
| Calculator | $39.99 | per year |
| Linear Calculator | $2.99 | one-time |
| Factoring Calculator | $2.99 | one-time |
| Handwriting Calculator | $2.99 | one-time |
| Currency Converter | $2.99 | one-time |
| Themes Pack | $2.99 | one-time |
| Graphing Calculator | $3.99 | one-time |
| Fraction Calculator | $3.99 | one-time |
| Scientific Calculator | $4.99 | one-time |
| Calculator Plus | $4.99 | one-time |
| Calculator | $16.99 | one-time |

**What reviewers like**

- 👍 Great features and easy to use
- 👍 Efficient and quick
- 👍 Versatile, functional calculator
- 👍 Fantastic, easy to use app
- 👍 Awesome calculator app

**What reviewers complain about**

- 🐛 New updated layout is awful
- 🐛 App is now terrible
- 🔒 Paying customer screwed over by update
- 🔒 Now timed trial, no free w/ads version
- 🔒 Not honest

**Reported bugs**

- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes

**Requested features**

- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines


### 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 + free?

Calculator + 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 + or Calculator HD Pro?

Calculator HD Pro is rated higher. Calculator + averages 4.6 out of 5 from 10K ratings, while Calculator HD Pro averages 4.8 from 11K ratings.

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

Calculator + shows ads; Calculator HD Pro does not.

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

Calculator + ships an update every 4 days, and Calculator HD Pro every 2 months. Most recently, Calculator + was updated on September 24, 2026 and Calculator HD Pro on September 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.*