# KatKalk — Custom Calculator and Viewer

> Custom Calculator and Viewer (iPhone/iPad app by Marcin Kilinski.)

- Source: https://appshunter.io/ios/app/katkalk/id6792461378 (this page in markdown: same URL + `.md`)
- Developer: [Marcin Kilinski](https://appshunter.io/developer/1756888297)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 24 MB
- Languages: American English
- Released: 2026-08-16
- Data updated: 2026-10-10

## What is KatKalk?

KatKalk is a configurable position calculator designed for the fast entry of many individual values.

  Unlike a conventional calculator, KatKalk keeps every entered position visible. This makes calculations easy to follow, verify and correct—even
  during fast-paced work.

  KEY FEATURES

  • Add, subtract, multiply, divide and calculate percentages
  • Keep every entered position clearly visible
  • Add short notes to individual positions
  • Save and reopen multiple sessions locally
  • Copy or remove the latest position
  • Choose from ready-made calculator profiles
  • Customize the keypad, screen layout and visible controls
  • Export sessions as readable HTML reports
  • Print reports directly from a compatible browser
  • Export and import KatKalk session files
  • Use the core calculator without an internet connection
  • Follow shared sessions in read-only viewer mode

  BUILT FOR PRACTICAL WORK

  KatKalk is especially useful when many prices, products or other individual values must be entered quickly while the complete calculation
  remains traceable.

  Every accepted value becomes a separate position. You can review the complete list, identify corrections and keep short product names or other
  information next to the corresponding value.

  FLEXIBLE CALCULATOR PROFILES

  Choose a simple profile for everyday calculations or adapt KatKalk to your own workflow.

  Depending on the selected profile, you can customize:

  • The calculator keypad and its arrangement
  • Visible buttons and quick-access actions
  • Notes and audio controls
  • Position numbers and counters
  • The total and cumulative totals
  • Font sizes and screen areas
  • Calculation and percentage rules

  Profiles for simple calculations, notes, recordings, advanced controls and classic calculator operation are included.

  SESSIONS AND REPORTS

  Save different calculations as separate sessions and reopen them later. KatKalk keeps the individual positions and notes together with the
  session.

  Create a readable HTML report for browsers, smartphones and printing. You can also export a KatKalk session file and import it again to
  continue working with the calculation.

  LOCAL BY DEFAULT

  Calculations, notes and saved sessions remain on your device. KatKalk’s core calculator works fully offline.

  Optional online functions are clearly separated from local calculation. Shared sessions can be followed in read-only viewer mode without
  allowing viewers to alter the master calculation.

  KatKalk is not intended to replace accounting, invoicing or financial advisory software. It is a practical tool for fast, transparent and
  configurable position calculations.

## Is KatKalk safe?

Not enough ratings yet to assess KatKalk.

## Is KatKalk legit?

KatKalk has limited verification signals. The AppsHunter Legitimacy Score for KatKalk is 50 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 2.0.3 — 2026-10-10

Added global reset history with a quick access icon. View the results of the last 100 resets across all sessions.

### 2.0.2 — 2026-09-28

• Notes now use the available space in each row and show more text.
• A single tap opens note editing and the keyboard.
• The note font size stays the same while editing.

### 2.0.1 — 2026-09-26

• Change operators for saved items directly in the list.
• Edit individual operators within an item's calculation in its detail view.
• Improved layout for the Classic profile and multiline calculations.
• Undo and redo operator changes.

### 2.0.0 — 2026-09-22

Fixed an issue where editing an inline position caused it to jump to the top.

### 1.0 — 2026-08-16

No release notes.

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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 2026-10-10.*