# Inseries Pro: Smart Calculator — Financial & Scientific

> Smart calculator for financial, scientific, and everyday calculations with history. (iPhone/iPad app by Elemental Tools GmbH.)

- Source: https://appshunter.io/ios/app/inseries-pro-smart-calculator/id635033086 (this page in markdown: same URL + `.md`)
- Developer: [Elemental Tools GmbH](https://appshunter.io/developer/300357999)
- Category: Finance, Utilities
- Price: $7.99
- Rating: 5.00/5 from 1 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 8 MB
- Languages: American English, German (Germany)
- Released: 2013-04-19
- Data updated: 2026-08-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/inseries-pro-smart-calculator/id635033086/reviews.md

## What is Inseries Pro?

The smart, modern, and elegant calculator app - optimized for multi-touch
* Easy, logical entering of calculations and clear history of previous results
* Built-in calendar functions (e.g., number of days between two dates)
* Naturally adding and subtracting percentages (e.g., 99+20% taxes or 79-30% discount)
* Gesture support for fast access to previous results and memory

Inseries is the slightly different professional calculator app that allows you to naturally enter calculations and clearly browse your previous results. Simply type in "100+20%" to add taxes, or "100-30%" to easily calculate a discount. Inseries even shows you "pi" as a real constant instead of just a number.

Inseries' clear user interface is designed for multitouch allowing us to come by with a small and simple keypad based on the clear keypad layouts of typical financial and business calculators. By using choosers for quickly accessing functions and constants we could bring in scientific calculator functionality without sacrificing usability.

Intelligent professional calculator
* Fast access to common, date, and scientific functions and constants
* Natural adding and subtracting of percentages
* Quick-sum function for fast adding of multiple numbers
* Real random value generator for rand() function

Simple and clear user interface
* Easily enter calculations in a spreadsheet-like way
* Copy results and paste support for calculation field
* Fast switching between all, 2, and 4 fraction digits
* Swipe-gestures for storing, recalling and clearing memory

Persistent calculation and result history
* Built-in database for previous calculations and results
* Back-functionality for going back to previous calculation
* Persistent settings, e.g., for fraction digits mode
* Variable-style access to memory ("M") and result ("R")

## Key features

- Natural calculation input
- Clear history of results
- Percentage calculations
- Calendar functions
- Scientific functions and constants
- Gesture support

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/inseries-pro-smart-calculator/id635033086/reviews.md

### 5/5 — Sehr guter Rechner.

*2021-09-18*

Macht was er soll und das ordentlich👍

### 5/5 — leichte Bedienung

*2018-06-23*

Hilft mir sehr gut weiter schnell Steuern, Zinsen und Rabatte zu berechnen. Die Funktionstasten Quick-Sum, M und R sind besonders praktisch.
Ich hoffe inseries lässt sich noch lange am Handy nutzen!

### 3/5 — It's great but it's got issues

*2016-06-17*

The main problem being that the previous calculations end up hidden behind the keyboard.  Which kinda defeats the object.

However by the looks of it, nobody else is buying the app.  Hence the lack of development, which I guess is fair enough.

I like it, it appears other people don't see the point!

### 5/5 — Great

*2014-04-23*

Everything I wanted in a calculator!

## Frequently asked questions about Inseries Pro

### What is Inseries Pro?

Inseries Pro is a smart, modern, and elegant calculator app optimized for multi-touch devices. It offers financial and scientific functions with a clear user interface and persistent history.

### What types of calculations can Inseries Pro handle?

Inseries Pro can handle standard arithmetic, natural percentage calculations (e.g., adding/subtracting taxes or discounts), date calculations, and provides access to scientific functions and constants like pi.

### Does Inseries Pro support gesture controls?

Yes, Inseries Pro supports swipe gestures for fast access to previous results, memory functions (storing, recalling, clearing), and other features.

### How does Inseries Pro manage calculation history?

Inseries Pro features a persistent calculation and result history stored in a built-in database. You can easily browse, go back to previous calculations, and copy results.

### What devices is Inseries Pro available on?

Inseries Pro is available for iPhone and iPad, with an age rating of 4+.

### How much does Inseries Pro cost?

Inseries Pro is a paid app, priced at $7.99. There are no in-app purchases or advertisements mentioned.

### How often is Inseries Pro updated?

The app was last updated on March 3, 2026, indicating a recent update. Its initial release was on April 19, 2013.

### Does Inseries Pro have ads?

No, Inseries Pro does not contain advertisements. It is a paid application that offers an ad-free experience.

## Version history (last 5 releases)

### 4.0.1 — 2026-07-07

Inseries 4.0.1 fixes some bugs and of course includes all the improvements of Inseries 4:

- Updated calculation engine with increased accuracy and reduced rounding errors
- Long numbers are now automatically displayed in scientific (“E”) notation for improved clarity
- The secondary function of the CLEAR button now provides CM (Clear Memory), as this is used more frequently than the previous ALL (Clear All) function

### 4.0 — 2026-03-03

Inseries 4 includes several notable improvements:

- Updated calculation engine with increased accuracy and reduced rounding errors
- Long numbers are now automatically displayed in scientific (“E”) notation for improved clarity
- The secondary function of the CLEAR button now provides CM (Clear Memory), as this is used more frequently than the previous ALL (Clear All) function

### 3.7 — 2025-10-13

Subtle improvements to better fit new iOS design.

### 3.6 — 2025-07-21

Beside general usability improvements and minor bug fixes, Inseries 3.6 comes with the following new features:

- New year-month-day ("YM") format for date calculations
- Extended result field context menu featuring memory operations
- Improved copy & paste functionality

### 3.5.1 — 2022-09-10

Performance improvements and bug fixes.

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## More apps by Elemental Tools GmbH

- [Inseries: Smart Calculator](https://appshunter.io/ios/app/inseries-smart-calculator/id824731089)
- [Firetask - Task List & Planner](https://appshunter.io/ios/app/firetask-task-list-and-planner/id1214628279)
- [Airrends - Shopping List](https://appshunter.io/ios/app/airrends-shopping-list/id1364361242)
- [Ideafall - Idea Management](https://appshunter.io/ios/app/ideafall-idea-management/id1484648062)
- [Infoplane: Short Notes Manager](https://appshunter.io/ios/app/infoplane-short-notes-manager/id1624903546)

All apps by Elemental Tools GmbH: https://appshunter.io/developer/300357999

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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 2026-08-30.*