# CalcSmpl Scientific Calculator — Geometry,Graph,Units,Currency

> Comprehensive scientific calculator with graph plotting, unit conversion, and math formulas. (iPhone/iPad app by Udit Agarwal.)

- Source: https://appshunter.io/ios/app/calcsmpl-scientific-calculator/id848291904 (this page in markdown: same URL + `.md`)
- Developer: [Udit Agarwal](https://appshunter.io/developer/848291907)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 4.50/5 from 782 App Store ratings · 13 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 43 MB
- Languages: American English
- Released: 2014-04-02
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calcsmpl-scientific-calculator/id848291904/reviews.md

## What is CalcSmpl Scientific Calculator?

A powerful calculator with a simple interface.

This is a fully featured scientific calculator which supports various other modes too. For everyday calculations, the calculator also supports a basic mode to get you started at fast speed.

All modes of calculators supported:
* Basic
* Scientific
* Graph plotting
* Currency Conversion
* Unit Converter
* Geometry Calculator
* Analytical/Coordinate geometry
* Finance Calculator
* Equations Solver
* Statistics Calculators
* Algebra Calculators
* Matrix Calculators
* Electronics Calculators
* Various other Miscellaneous Calculators

Prominent Features: 
* Mathematics handbook for your reference: This app has 1000+ math formulas and more to come.
* You can plot equation and function graphs
* Calculation History
* All Trigonometric operations
* Large input/output display
* Long press to perform alternate operation
* Degree, Radian
* Logarithmic operations
* Bitwise operations
* Configurable memory locations
* Various Constants
* Customizable Settings
* You can Copy and Paste calculations
* You can copy results from one mode to another
* Easy and Clean user interface
* Nautical Conversions

If you find this calculator useful, please consider reviewing to support us.

If you have any suggestion or complaint, please send us your valuable feedback(you may use "Send Feedback" from within the app for this).

## Key features

- Scientific and basic calculation modes
- Graph plotting for equations and functions
- Unit and currency conversion
- Geometry and finance calculators
- Mathematics handbook with 1000+ formulas
- Calculation history and copy/paste functionality

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade to Scientific Calculator Pro | $4.99 | one-time |


## What do users think of CalcSmpl Scientific Calculator?

Overall sentiment: mixed

**Pros**

- 👍 Useful for basic calculations
- ⭐ High ratings from satisfied users
- 💡 Multiple modes available
- ✨ Simple and straightforward interface

**Cons**

- 📺 Excessive ads and pop-ups
- 🐛 Display issues on certain iOS versions
- 🔢 Floating-point calculation errors
- ⌨️ Limited button functionality
- 📍 Poor button placement

**Commonly reported bugs**

- Nothing displays when performing simple operations on iOS 13.1
- Floating-point arithmetic errors (e.g., 278.18+231.07+52.04+75.40 = 636.68999999999)
- Ad pop-ups appear immediately upon use
- App crashes or freezes during calculations

**Most requested features**

- More advanced mathematical functions and buttons
- Option to limit decimal places (e.g., 2 digits)
- Ad-free or paid premium version
- Better button layout and organization

## Recent user reviews (10 of 13)

All indexed reviews: https://appshunter.io/ios/app/calcsmpl-scientific-calculator/id848291904/reviews.md

### 5/5 — Hi oh

*2021-02-18*

Snkdjvmfktkfptoykylylukulupypuoyjutktkhkrkyorohoglmhkmlh,uujjjj

### 5/5 — Love this calculator

*2020-04-22, version 1.20.5*

Very useful with so much applications, enjoying it even with just 30 minutes of usage

### 1/5 — Simply did not work

*2019-11-04, version 1.20.3*

Maybe it is not ready for iOS 13.1 but nothing displays when trying a simple operation.

**Developer response:** Hello User,
We are extremely sorry that the app did not work as per your expectations. Can you please send us some more details like which operation you tried which did not work so that we can look into this issue and fix it asap. You can send details to hello@uditagarwal.com.
We hope to make this app a great app for you. 
Thanks

### 1/5 — Avoid!

*2019-09-16*

Something is seriously wrong with this app which claims so much but delivers so little. Furthermore, I have been unable to read any of the previous "18" reviews which have resulted in such an impressive score of 4.8. What's going on here?

**Developer response:** Hello User,
We are really sorry that you did not find the app up to the mark. Can you please let us know what you think is missing? We will try to fix it. Please share your concerns at hello@uditagarwal.com

### 2/5 — Error in calculations

*2019-04-10, version 1.20.0*

Entered the following
278.18+231.07+52.04+75.40 and get answer of 
636.68999999999. Tried adding numbers 1 and 2, then adding to that answer and answer is correct until I add the 52.04 and then get same erroneous total

### 1/5 — Not enough buttons

*2019-04-05, version 1.19.4*

I lost my calculator I use for school, so I downloaded this, it doesn’t have any of the buttons I need. I looked at all the modes, none had what I needed. This is good for the basics, adding subtracting multiplying and devision
But the calculator that came on my phone could do more...

**Developer response:** Hello User,
First of all thanks for using our app and giving your valuable feedback. We are really sorry that we were not able to provide you the features those you were looking for when you installed our app. But we would like to make this right for you.

Can you please let us know the buttons or features which you think are missing from this app at hello@uditagarwal.com. I assure we will try our best to include those features,

### 2/5 — Adds

*2019-03-23, version 1.19.2*

Hit one button and an add popped up. Immediately uninstalled.

### 5/5 — Comma with only 2 digits

*2019-01-04, version 1.17.0*

Hi, 
I appreciate put only 2 digits beyond de comma. Example: 20/3=6,67.
If possible, i’ll like so much!!!
Best regards.

**Developer response:** First of all thanks for using our app. I will like to inform you that you can configure the number of decimal digits from the settings option with the app. Default value is 5. You can change it to 2. 
Please contact us at hello@uditagarwal.com for detailed steps with screenshots.

### 5/5 — Wonderful

*2018-09-11, version 1.15.0*

A must have app

### 1/5 — Too many ads!

*2018-08-01, version 1.11.5*

Deleted, don't need adds every time I use this app.

**Developer response:** Thanks a lot for providing your feedback. 
We are really sorry that you are not liking our app because of Ads. However, We would like to tell you that ads have been so that we can support continuous development of this app to make it better every day. 
If you do not want to see ads, please upgrade to the pro version from within the app.

Let us know if you have any more issues or doubts. Do provide your feedback at hello@uditagarwal.com

## Frequently asked questions about CalcSmpl Scientific Calculator

### What kind of calculations can this app perform?

This app functions as a fully featured scientific calculator, supporting basic calculations, scientific operations, graph plotting, currency conversion, unit conversion, geometry calculations, finance calculations, equation solving, statistics, algebra, matrices, electronics, and various other miscellaneous calculations.

### Does the app offer any learning resources?

Yes, the app includes a mathematics handbook with over 1000 math formulas and more are planned. This handbook serves as a reference for users needing quick access to mathematical information.

### Is this app free to use?

The app is free to download and use, offering a comprehensive set of features. It also includes in-app purchases, which may unlock additional functionalities or content.

### Can I plot graphs with this calculator?

Yes, a prominent feature of this calculator is its ability to plot equation and function graphs. This allows users to visualize mathematical relationships directly within the app.

### What are the main benefits of using this calculator over a standard one?

This app goes beyond standard calculations by offering specialized modes like geometry, finance, and equation solving. It also provides graph plotting, extensive unit and currency conversion, a built-in math handbook, and convenient features like calculation history and copy/paste functionality.

## Version history (last 5 releases)

### 1.20.6 — 2020-11-25

Bug fixes and performance improvements!

### 1.20.5 — 2019-11-10

Bug fixes and performance improvements.

Love the app? Please rate us! 
Do you see something missing in there? Have a question? Do let us know. Shoot a mail to hello@uditagarwal.com. We love to hear from our users!

### 1.20.4 — 2019-11-08

Bug fixes and performance improvements.

Love the app? Please rate us! 
Do you see something missing in there? Have a question? Do let us know. Shoot a mail to hello@uditagarwal.com. We love to hear from our users!

### 1.20.3 — 2019-10-31

Bug fixes and performance improvements.

Love the app? Please rate us! 
Do you see something missing in there? Have a question? Do let us know. Shoot a mail to hello@uditagarwal.com. We love to hear from our users!

### 1.20.2 — 2019-08-07

We have come up with a new name for this app: CalcSmpl. Do give your feedback on this.

Love the app? Please rate us! Your feedback makes this app better.
Do you see something missing in there? Have a question? Do let us know. Shoot a mail to hello@uditagarwal.com. We love to hear from our users!

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## More apps by Udit Agarwal

- [Dress recommender and matcher](https://appshunter.io/ios/app/dress-recommender-and-matcher/id849121197)
- [NewsHub - News At Single Hub](https://appshunter.io/ios/app/newshub-news-at-single-hub/id968695497)

All apps by Udit Agarwal: https://appshunter.io/developer/848291907

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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 2026-06-10.*