# Natural Scientific Calculator — The calculator millions love

> Natural scientific calculator with paper-like input and advanced features. (iPhone/iPad app by Stultus Studios Pty Ltd.)

- Source: https://appshunter.io/ios/app/natural-scientific-calculator/id1221737584 (this page in markdown: same URL + `.md`)
- Developer: [Stultus Studios Pty Ltd](https://appshunter.io/developer/1221737583)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 4.60/5 from 95 App Store ratings · 142 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 83 MB
- Languages: American English
- Released: 2017-04-17
- Data updated: 2026-08-14
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/natural-scientific-calculator/id1221737584/reviews.md

## What is Natural Scientific Calculator?

Loved by over 1 million users, Natural Scientific Calculator is the fastest way to do maths.

NSC allows to you edit wherever you need to. Unlike other scientific calculators which make you mash buttons to move a cursor, our app allows you to simply swipe on the keyboard to get to where you need. You can also pinch to zoom and get an overview of complex equations.

Write as you would on paper 
Other apps make you enter equations on a single line like something from the 1970s. Our Natural Input solves this problem by allowing you to enter equations as you'd write them on paper, using fractions, roots, exponents and more. It's called a "natural display" and is a common feature on scientific calculators like the Casio fx-82 or TI-30XB.

History and Favourites 
Instead of having to type out long equations over and over, simply favourite them and retrieve them with a single tap. Guaranteed to speed up your workflow enormously. 

Fully featured scientific calculator functionality 

• Radians and Degrees support 
• Decimal to fraction conversion 
• Mixed and improper fractions
• Permutations and combinations 
• Precision to 2,048 decimal places (non-trigonometric/roots)
• Programmable roots, logarithms 
• Programmable constants
• Trigonometric functions - sine, cosine, tangent

Our Privacy Policy: http://www.stultusstudios.com/privacy-policy/

Our Terms of Use: http://www.stultusstudios.com/terms-and-conditions/

## Key features

- Natural input for equations
- Swipe to edit and pinch to zoom
- History and favorites for equations
- Fractions, roots, and exponents
- Radians and degrees support
- Decimal to fraction conversion

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| NSC Plus Monthly Subscription | $0.49 | per month |
| NSC Plus Annual Subscription | $3.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| NSC Plus | $7.99 | one-time |


## What do users think of Natural Scientific Calculator?

Overall sentiment: mixed

**Pros**

- 👍 Intuitive and user-friendly interface
- 📐 Natural display with equation editing
- 🚀 Fast and efficient calculations
- 🎓 Excellent for students and engineers
- ✨ Clean, simple design compared to competitors
- 📱 Effective replacement for physical calculators
- 🔢 Comprehensive scientific functions
- ⌨️ Cursor navigation for equation editing

**Cons**

- 🐛 Frequent crashes and freezing
- ❌ Incorrect trigonometric calculations
- 📵 Excessive pop-up notifications requesting reviews
- 💰 Expensive premium version
- 📺 Intrusive and loud advertisements
- 🔋 Battery drain and performance issues
- 📱 Poor iPhone X+ screen optimization
- ⌨️ No physical keyboard support
- 🚫 Abandoned project with no recent updates
- 📋 No copy/paste functionality

**Commonly reported bugs**

- Math error on all calculations (widespread issue from late 2022-2023)
- App freezes during startup or tutorial
- Crashes during complex calculations
- Incorrect inverse trigonometric function results
- Incorrect sine, cosine, tangent calculations
- Scientific notation exponent calculation errors
- App crashes when switching between apps
- UI elements stretched or unreadable in split-screen mode
- Tutorial screen stuck with no way to progress
- Slow performance and battery drain
- Crashes on iOS 12 and newer versions
- Buttons unresponsive or non-functional

**Most requested features**

- Dark mode or dark theme option
- Physical keyboard support
- Copy and paste functionality
- History or ticker of previous calculations
- Double and triple zero buttons (00, 000)
- Thousand separator (comma) support
- Equation solver feature
- Memory function for reusing previous results
- Antilog function
- S→D (Sexagesimal to Decimal) button
- Scientific notation handling improvements
- iPad split-screen optimization
- Skip tutorial option
- Better cursor control for equation modification
- Conversions and constants library

## Recent user reviews (10 of 142)

All indexed reviews: https://appshunter.io/ios/app/natural-scientific-calculator/id1221737584/reviews.md

### 4/5 — Stop asking me for a review

*2026-06-14, version 1.2.4*

Perfect apart from the constant pop up asking me if I like it. I have tolerated the pop up for more than 5 years, maybe this review will make it stop? I even paid for the pro version. Let me alone to calcite

### 4/5 — Great calculator

*2026-06-02, version 1.2.4*

Best calculator out there and so glad it got updated for newer phones, loses a star because every single time I open it (or even during using it) I’m getting pop ups to rate it

### 5/5 — :)

*2026-05-22*

Is amazing for maths people

### 5/5 — Most usable with natural display

*2026-02-08*

This isn't the only calculator app on the market with natural display, but it is far and away the most usable. It perfectly combines the simplicity and ease of use of the built-in calculator with more advanced operations available on other scientific calculator apps. The UI is simple and clean, whereas others feel a lot more like handheld scientific calculators emulated on the iPhone, with really busy UIs full of myriad tiny buttons.

### 5/5 — Excellent

*2026-01-12, version 1.2.2*

Really useful.

### 5/5 — Very good calculator app

*2025-04-17, version 1.2.2*

Very good and easy to use

### 2/5 — not pasting option no keyboard support

*2025-04-07, version 1.2.2*

The app is great but i can’t  copy a long number from some where to this application , the app is great but it need a massive work around on ux ui design  and copy past ability no physical key board support plz do develope it

### 5/5 — Amazing!!! just feel like writing equation on paper

*2025-02-18, version 1.2.2*

This is such an awesome app!now I don’t have to worry about inputting errors — feels like doing math on paper — except it is automatic! Feel so convenient. It is natural indeed.

### 5/5 — Best calculator app for iPhone

*2024-09-19, version 1.2.2*

This is by far the best calculator app I have found for IPhone. The ability to navigate your cursor to anywhere in a complex equation quickly and easily is so useful!

### 5/5 — Review

*2024-05-02, version 1.2.2*

Amaziiiiiiing app for classes

## Frequently asked questions about Natural Scientific Calculator

### What does the Natural Scientific Calculator app do?

This app provides a scientific calculator with a natural input method, allowing users to write equations as they would on paper, including fractions, roots, and exponents. It also offers intuitive editing features like swipe gestures and pinch-to-zoom for managing complex expressions.

### What are the key features of this calculator app?

Key features include natural equation input, swipe-to-edit functionality, pinch-to-zoom for overview, history and favorites for saved equations, support for radians and degrees, decimal to fraction conversion, and advanced functions like permutations and combinations.

### How much does the Natural Scientific Calculator app cost?

The app offers a free version with core functionality. An optional 'NSC Plus' subscription is available for $0.99/month or $5.99/year, which removes ads and unlocks additional features like history, favorites, scientific notation, and decimal to fraction conversion.

### What devices is the Natural Scientific Calculator app compatible with?

The app is available for mobile devices. Specific compatibility details, such as supported operating system versions, can typically be found on the app's store page.

### Who would benefit from using this scientific calculator app?

This app is ideal for students, engineers, scientists, and anyone who frequently works with complex mathematical calculations. Its natural input and intuitive editing make it a powerful tool for both educational and professional use.

## Version history (last 5 releases)

### 2.0.7 — 2026-08-10

NSC 2.0 — rebuilt from the ground up.

• Integrated history and main display
• Settings bar with live switching lenses
• Legacy themes available

### 1.2.4 — 2026-04-16

- Removed NSC Plus requirement to have access to current premium features.

### 1.2.3 — 2026-04-11

- Changed modal behaviour
- Added Liquid Glass

### 1.2.2 — 2023-02-23

After many years of inactivity and being busy with life, we're back and fully focused on a complete rewrite and revamp of Natural Scientific Calculator! 

Stay tuned for NSC2 (to be released in by April 2023) which will release as web and desktop apps (Windows, Mac, Linux), in addition to the current iOS and Android apps. NSC2 will feature a revamped user interface and a more comprehensive set of maths functionality. Send your suggestions for the new NSC to www.stultusstudios.com/nsc-feedback and stay up to date with our progress at www.stultusstudios.com/notice-board

New in this version:

In the mean time, we've also updated NSC to 1.2.0 on iOS, which comes with many fixes and improvements. 
• Optimised the app for larger screens on more modern iPhones (letterboxing is now a thing of the past)
• Improved performance
• Added a notice board to keep you up to date with recent changes and future updates
• Removed referral system (contact us if you've referred people and need a premium code)
• Fixed various crashes
• Updated the "Send Feedback" and "Help with translation" pages, to redirect to a web form.

### 1.2.1 — 2023-02-20

After many years of inactivity and being busy with life, we're back and fully focused on a complete rewrite and revamp of Natural Scientific Calculator! Stay tuned for NSC2 which will release on web and desktop (Windows, Mac, Linux), in addition to the current iOS and Android platforms. NSC2 will feature a revamped user interface and a more comprehensive set of maths functions. Expect to see the launch by April 2023. Send your suggestions for the new NSC to www.stultusstudios.com/nsc-feedback and stay up to date with our progress at www.stultusstudios.com/notice-board

In the mean time, we've also updated NSC to 1.2.0 on iOS, which comes with many fixes and improvements. 
• Optimised the app for larger screens on more modern iPhones (letterboxing is now a thing of the past)
• Removed ads completely (for everyone)
• Improved performance
• Added a notice board to keep you up to date with recent changes and future updates (check Settings)
• Removed referral system (contact us if you've referred people and need a premium NSC Plus code)
• Fixed various crashes
• Updated the "Send Feedback" and "Help with translation" pages, to redirect to a web form.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*