# Scientific++ vs Calculator HD Pro

The clearest difference is price: Scientific++ at $0.99 against Calculator HD Pro's $9.99. Scientific++ also leads on in-app purchases (none vs 2). Calculator HD Pro's advantage is ratings volume (11K vs 61) and rating (4.8 vs 4.5). On review sentiment, ads, monetization model and device support there is nothing between them.

Scientific++ costs $0.99 and Calculator HD Pro $9.99 up front. Calculator HD Pro sells 2 one-off in-app purchases. Scientific++ asks for nothing beyond the download.

Calculator HD Pro holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Calculator HD Pro has 11K ratings behind it against 61, so its average is the more settled of the two. Written reviews point the same way: 89% of Scientific++'s written reviews are positive against 95% of Calculator HD Pro's.

Scientific++ ships an update every 6 months, Calculator HD Pro every 2 months. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Scientific++ | Calculator HD Pro |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | [4.5 (61 ratings)](https://appshunter.io/ios/app/scientific-plus-plus/id468657943/reviews) | **[4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews)** |
| Number of ratings | 61 | **11K** |
| Positive reviews | 89.5% of reviews | **94.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 48 MB |
| Requires iOS | 15.6 | **15.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dogahe](https://appshunter.io/developer/468657946) | [Cider Software LLC](https://appshunter.io/developer/465180756) |

## What reviewers say

### Scientific++

[App page](https://appshunter.io/ios/app/scientific-plus-plus/id468657943)

This app is a powerful scientific calculator with advanced features like fraction manipulation, angle conversions, and equation solvers. It also includes a dice roller and a handy backspace function for easy editing. Additional geometry calculators are available via in-app purchase.

**Highlights:** Expression history and input display, Fraction manipulation and conversion, Degrees, minutes, seconds angle conversion, Permutation, combination, LCM, GCD, prime factorization, Quadratic and linear equation solver, Coordinate conversion (rectangular/polar), Physical constants list, Dice roller

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Scientific++ free?

Scientific++ costs $0.99, with no in-app purchases.

### Is Calculator HD Pro free?

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

### Which has better reviews, Scientific++ or Calculator HD Pro?

Calculator HD Pro is rated higher. Scientific++ averages 4.5 out of 5 from 61 ratings, while Calculator HD Pro averages 4.8 from 11K ratings.

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

Neither Scientific++ nor Calculator HD Pro shows ads.

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

Scientific++ ships an update every 6 months, and Calculator HD Pro every 2 months. Most recently, Scientific++ 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.*