Natural Scientific Calculator 4+

The calculator millions love

Stultus Studios Pty Ltd

Designed for iPad

    • 4.6 • 83 Ratings
    • Free
    • Offers In-App Purchases



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.

NOTE: If you are referring people and not being given a free premium version, please email us at stultusstudio@gmail. We'll gladly help you get your premium version.

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

NSC Plus Subscription Pricing and Terms

An NSC Plus Monthly or Yearly Subscription will give you access to the additional features: No ads, access to history and favourites, use of scientific and engineering notation, and decimal to fraction conversion.

NSC Plus Monthly Subscription: $0.99 for 1 month
NSC Plus Yearly Subscription: $5.99 for 1 year

These prices are for Australian customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence.

Payment will be charged to iTunes Account at confirmation of purchase.

Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.

Our Privacy Policy:

Our Terms of Use:

Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.

Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.

What’s New

Version 1.2.2

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 and stay up to date with our progress at

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.

Ratings and Reviews

4.6 out of 5
83 Ratings

83 Ratings ,

Not working anymore

App worked really well until recently; I keep getting “Math Error” like the other reviewer.

Developer Response ,

We've manage to fix the problem and it's working as before now. This was due to the iOS 16 update. Thanks for the feedback and stay tuned for more updates.

McEngineerface ,

NSC Plus No Longer Works

Been using NSC Plus for years and it worked great. Now it says math error no matter what I type.

Developer Response ,

Thanks for supporting us through NSC Plus. We've manage to fix the problem and it's working as before now. This was due to the iOS 16 update. Thanks for the feedback and stay tuned for more updates.

ZorroDeEstrellas ,

No longer works

Was a really good calculator until around fall 2022. Now February 2023, and still broken, so the devs aren't maintaining it anymore.

Developer Response ,

Thanks for the feedback. We've managed to fix this, and the calculator is working as before now. Sorry for the delay! We are maintaining this app and planning to launch a completely revamped version in the coupling months, called NSC 2.0.

App Privacy

The developer, Stultus Studios Pty Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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