# Calculator HD Pro vs FP Scientific&Basic Calculator

The clearest difference is price: FP Scientific&Basic Calculator at Free against Calculator HD Pro's $9.99. FP Scientific&Basic Calculator also leads on in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 2 months). Calculator HD Pro's advantage is review sentiment (95% vs 69%) and ratings volume (11K vs 657). On ads and device support there is nothing between them.

FP Scientific&Basic Calculator is free to download; Calculator HD Pro costs $9.99 up front. Calculator HD Pro sells 2 one-off in-app purchases. FP Scientific&Basic Calculator asks for nothing beyond the download.

Calculator HD Pro holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Calculator HD Pro has 11K ratings behind it against 657, so its average is the more settled of the two. Written reviews point the same way: 95% of Calculator HD Pro's written reviews are positive against 69% of FP Scientific&Basic Calculator's.

Calculator HD Pro ships an update every 2 months, FP Scientific&Basic Calculator every 2 weeks. The most recent releases landed on September 27, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Calculator HD Pro | FP Scientific&Basic Calculator |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[4.8 (11K ratings)](https://appshunter.io/ios/app/calculator-hd-pro/id565023649/reviews)** | [4.6 (657 ratings)](https://appshunter.io/ios/app/fp-scientific-and-basic-calculator/id1556021625/reviews) |
| Number of ratings | **11K** | 657 |
| Positive reviews | **94.8% of reviews** | 68.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 48 MB | 92 MB |
| Requires iOS | 15.2 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cider Software LLC](https://appshunter.io/developer/465180756) | [Ofly Tech Co., Ltd.](https://appshunter.io/developer/1556021627) |

## What reviewers say

### 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


### FP Scientific&Basic Calculator

[App page](https://appshunter.io/ios/app/fp-scientific-and-basic-calculator/id1556021625)

This app offers a versatile calculator with basic arithmetic, currency, and unit conversion capabilities. It features customizable interfaces, including dark mode, and supports split-screen functionality on iPads. Users can also track calculation history and split bills.

**Highlights:** Basic and arithmetic calculations, Currency conversion (160 currencies), Unit conversion (10 units), Dark and light mode, Split-screen computing, Calculation history, Bill splitting

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

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent app
- 👍 Great calculator
- 👍 User-friendly interface
- 👍 Comprehensive features
- 👍 Convenient currency converter

**What reviewers complain about**

- 🐛 Frozen currency exchange rates
- 🔍 Excessive ads and pop-ups
- ⏱️ Slow app startup
- 🔒 Lack of ad-free purchase option

**Reported bugs**

- Currency converter not working
- Crashes and freezes
- Incompatibility with older devices

**Requested features**

- Add tax calculation feature
- Implement widget support
- Provide more Christmas themes
- Fix currency converter issues


## Frequently asked questions

### Is Calculator HD Pro free?

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

### Is FP Scientific&Basic Calculator free?

FP Scientific&Basic Calculator is free to download, with no in-app purchases.

### Which has better reviews, Calculator HD Pro or FP Scientific&Basic Calculator?

Calculator HD Pro is rated higher. Calculator HD Pro averages 4.8 out of 5 from 11K ratings, while FP Scientific&Basic Calculator averages 4.6 from 657 ratings.

### Do Calculator HD Pro or FP Scientific&Basic Calculator have ads?

Neither Calculator HD Pro nor FP Scientific&Basic Calculator shows ads.

### Which is updated more often, Calculator HD Pro or FP Scientific&Basic Calculator?

Calculator HD Pro ships an update every 2 months, and FP Scientific&Basic Calculator every 2 weeks. Most recently, Calculator HD Pro was updated on September 27, 2026 and FP Scientific&Basic Calculator on September 14, 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.*