Kalkyl3.0.6 - App Store

Kalkyl is just a really good calculator.

. Optimized for quick calculations.
. Collaborate on documents.
. Simple and intuitive design.
. Haptic feedback (on supported devices).
. Undo and Redo support (shake to Undo).
. Keyboard trackpad mode using 3D Touch, or Haptic Touch (on supported devices), or two fingers on iPad.
. Pointer interactions on iPad.
. Basic graphing.
. Properly localized number formatting.
. App-wide dynamic type support.
. Accessible.

Terms of Use:
https://kalkyl.io/terms.html

Version History Kalkyl Pro is still free and available for every one of you!

Fixes a bug in the display (not calculation) of repeated decimals of rationals of a certain rare format. 3.0.6 07/18/2025 With this release Kalkyl Pro is made free and available for every one of you!

New features include:
• Unit conversions with complex units – from EUR/m² to USD/ft² or m/s to mi/h with up-to-date currencies
• Collaborative Documents – allowing nested and dependent expressions and sharing with friends
• Symbolical Differentiation – when you just can't remember what d/dx of √cos (x²) is
• … last but probably the least: The Light app icon 3.0.5 08/21/2024 Fixes a rare issue where fractions with special properties could result in repeated decimals being presented with the wrong first or last digit 3.0.3 02/26/2024 Support for the latest operating systems 3.0.2 09/16/2023 Bug fixes 3.0.1 10/03/2022 • Kalkyl Pro includes Collaborative Documents - supporting sharing, multi-step calculations, up-to-date currency, and unit conversions with dimensional analysis.
• Redesigned keyboard.
• New search filter in the unit picker.
• Improved unit suggestions.
• Loads of improvements, bug fixes, and optimizations throughout the app.
• ... and last, but not least - support for the latest OS versions. 3.0 09/12/2022 Bug fixes
• The wrong sign of ∞ could be shown 2.9.2 07/28/2022 Bug fixes
• The graph doesn't jump ever so slightly at the end of a gesture.
• With Dark-/Light-mode override, symbols could hide when erasing.
• The Russian rouble tanked so hard that it brought Kalkyl down with it. 2.9.1 06/21/2022 • The Split View and Slide Over experience on iPad is greatly improved!
• Animated graph transitions.
• Much better result formatting.
• Repeated decimals - 1/6 is 0.1(6) and not 0.166 666 6667.
• Improved responsiveness of the keyboard.
• Symbolic differentiation (requires Kalkyl Pro).

Note: Animated Graphs can be disabled with Reduce Motion. 2.9 07/14/2020 Bug fixes and improvements. 2.8.9 06/10/2020 • Improved pointer interaction support (iPadOS 13.4+).
• Graph styling improvements. 2.8.8 05/22/2020 • Improved initial scaling of viewport when graphing functions with extreme derivatives, e.g. 1/x and tan x.
• Fixes an issue where certain small numbers to an intermediate power could fail to evaluate.
• Fixes an issue where results could be rounded wrong.

Previous updates:
• Trackpad support (iOS 13.4+).
• Greatly improved Light theme.
• Optimized pipeline to remove all input lag.
• Fixes a few issues on iPad.
• Fixes an issue with Dark- and Light-mode system override (iOS 13+).

In 2.8:
Kalkyl becomes even more Pro

• Dark- or Light-mode, with system override (iOS 13+).
• UI improvements.
• Improved Haptics.
• You can now disable nudges under Settings.
• Floating keyboard support on iPad.
• Custom, fine-tuned trackpad-mode for iPhones with Haptic Touch.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8.7 04/17/2020 • Improved initial scaling of viewport when graphing functions with extreme derivatives, e.g. 1/x and tan x.
• Fixes an issue where certain small numbers to an intermediate power could fail to evaluate.

Previous updates:
• Trackpad support (iOS 13.4+).
• Greatly improved Light theme.
• Optimized pipeline to remove all input lag.
• Fixes a few issues on iPad.
• Fixes an issue with Dark- and Light-mode system override (iOS 13+).

In 2.8:
Kalkyl becomes even more Pro

• Dark- or Light-mode, with system override (iOS 13+).
• UI improvements.
• Improved Haptics.
• You can now disable nudges under Settings.
• Floating keyboard support on iPad.
• Custom, fine-tuned trackpad-mode for iPhones with Haptic Touch.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8.6 04/16/2020 In 2.8.5:
• Fixes a few issues on iPad.

In 2.8.4:
• Trackpad support (iOS 13.4+).
• Fixes an issue with Dark- and Light-mode system override (iOS 13+).

In 2.8.3:
• Greatly improved Light theme.
• Optimized pipeline to remove all input lag.

In 2.8:
Kalkyl becomes even more Pro

• Dark- or Light-mode, with system override (iOS 13+).
• UI improvements.
• Improved Haptics.
• You can now disable nudges under Settings.
• Floating keyboard support on iPad.
• Custom, fine-tuned trackpad-mode for iPhones with Haptic Touch.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8.5 04/14/2020 In 2.8.4:
• Trackpad support (iOS 13.4+).
• Fixes an issue with Dark- and Light-mode system override (iOS 13+).

In 2.8.3:
• Greatly improved Light theme.
• Optimized pipeline to remove all input lag.

In 2.8:
Kalkyl becomes even more Pro

• Dark- or Light-mode, with system override (iOS 13+).
• UI improvements.
• Improved Haptics.
• You can now disable nudges under Settings.
• Floating keyboard support on iPad.
• Custom, fine-tuned trackpad-mode for iPhones with Haptic Touch.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8.4 03/30/2020 In 2.8.3:
• Greatly improved Light theme.
• Optimized pipeline to remove all input lag.

In 2.8:
Kalkyl becomes even more Pro

• Dark- or Light-mode, with system override (iOS 13+).
• UI improvements.
• Improved Haptics.
• You can now disable nudges under Settings.
• Floating keyboard support on iPad.
• Custom, fine-tuned trackpad-mode for iPhones with Haptic Touch.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8.3 11/18/2019 Kalkyl becomes even more Pro

• UI improvements.
• A new Light appearance that’s integrated with the system-wide Dark mode (iOS 13+).
• Improved Haptics.
• You can now disable nudges under Settings.
• Floating keyboard support on iPad.
• Custom, fine-tuned trackpad-mode for iPhones with Haptic Touch.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8.2 10/28/2019 Fixes a bug on iOS 11. 2.8.1 09/20/2019 Kalkyl becomes even more Pro

• UI improvements.
• A new Light appearance that’s integrated with the system-wide Dark mode (iOS 13+).
• Improved Haptics.
• You can now disable nudges under Settings.

The new Kalkyl Pro subscription also unlocks:
• Length and time unit conversions.
• A custom light app icon.
• Always up-to-date currency conversions.
• Aggregate unit conversions, such as USD/ft² to EUR/m².
• Calculation history.
• … and there's more to come. 2.8 09/19/2019 Bug fixes 2.7.1 06/03/2019 • Brand new expression parser - enabling a whole range of new features.
• Exponents are rendered as superscripts.
• Square and cube roots are rendered with overbar.
• Improved graphing with sharper text, smooth resizing animation and dynamic type support.
• Nudges, as visual instructions, for some frequently asked questions about the interface.
• Indian numbering system support - groups numbers like 1,00,00,000.
• Translated to even more languages.
• Performance improvements - now using fast vectorized graph point calculations.
• ... and many, many other tweaks and improvements. 2.7 05/29/2019 • 3D Touch “tap” on keyboard for word selection.
• Pan + tap (3 touches in total) for word selection on devices without 3D Touch.
• Brand new math tokenizer.
• Use percent with multiplication and division.
• Undo/Redo improvements.
• Improved external keyboard support.
• Home-screen Quick Action that clears the previous calculation before launching.
• Alternate smoothly between zooming and translation gesture while graphing.
• Basic Siri shortcut integration. 2.6 11/08/2018 Support for the latest devices. 2.5.2 10/31/2018 Adds support for the latest devices. 2.5.1 09/15/2018 • Keyboard improvements.
• Numbers line-break properly.
• Multitasking support on iPad.
• Improved graphing
• Localized to 9 languages - including the support section.
• Accessibility - VoiceOver, fine-tuned interactions with the graph, touch-typing support on the custom keyboard, behaves well under dynamic invert colors, reduce motion, ...
• Privacy-mode - moves the result to previous answer after 15 minutes and hides the current calculation in the App Switcher. 2.5 08/13/2018