Support for heart rate sensors that deliver heart rate only (instead of RR intervals) has been added. Screen settings has been redesigned. Screen Pro has been merged with screen settings. Charts on HRV details screen now show heart rate instead of RR intervals by default. A bug has been fixed that broke the streaks. (Thanks, Christina) A bug that caused sporadic visual issues at the HRV chart has been fixed. (Thanks, Jim) Duration of HRV recording is now calculated based on filtered heart rate/RR interval values, rather than on raw values. On iOS devices that are configured to display bold text, the labels on the Y-axis on the HRV chart and HRV history chart are no longer truncated. (Thanks, Jim). Third party dependencies have been upgraded.

Highlights of version 7.5: SDNN, average heart rate and breathing sessions can now be written to Apple Health. Apple Health integration can be enabled or disabled in the pro settings. Visual appearance of the line chart that displays the current heart rate during the exercise has been improved. The bar chart showing the daily exercise goal on the diary screen is now always visible.

Screen exercise diary has been redesigned.  Third-party media players can now be used to play audio during breathing exercises in Breath Ball.  The pro Screen now has an option to automatically connect to a heart rate monitor before a breathing exercise. (Thanks, Simone)  A bug that caused empty HRV recording files to display some UI elements as grey rectangles has been fixed. (Thanks, Sven)  A bug that caused breathing phases with a duration of x.1 seconds to be displayed as x.0 seconds has been fixed. (Thanks, Simone)  A rare bug that caused an empty duration picker dialogue to appear when a breathing exercise with a length greater than one hour was selected has been fixed. (Thanks, Dimitri)  A bug that changed the text color in the status bar when the language was changed in Breath Ball has been fixed.  Confettis are back!

A bug that slowed down the app's start has been fixed.  Minimum supported iOS version has been increased to 15.

HRV screen has been polished. Audio engine has been updated.

The heart rate variability (HRV) details screen has been polished. A tachogram showing the heart rate is now displayed during breathing exercises when a heart rate monitor is connected. The pro screen now has a setting to enable or disable the heart rate tachogram during breathing exercises. Messages on the exercise diary screen are no longer truncated.

HRV history chart has been added. It shows the progression of HRV parameters across all heart rate measurements. RR Interval are now filtered to remove artefacts. HRV Chart now shows RR interals by default. Stress has been replaced by cardiac coherence at HRV details screen.

Countdown is now shown at the center of the selected shape. A bug that prevented the exported exercise diary from being attached to an email has been fixed. A bug that broke audio output on some devices has been fixed.

Undesired line break at HRV Chart tooltip has been fixed. HRV Chart has been optimized for performance. A bug that caused a crash when exiting the app has been fixed.

Various Heart Rate Variability (HRV) related parameters (SDNN, RMSSD, PNN50 and others) are now shown at the heart rate recording details screen. A setting to configure HRV frequency units has been added to the Pro screen, allowing VLF, LF, and HF values to be displayed in either percentages (default) or ms². A loading indicator is now shown when opening HRV files. If enabled, RMSSD, SDNN, pNN50, and the LF/HF ratio are displayed during breathing exercises. Options to show or hide RMSSD, SDNN, pNN50, and LF/HF values during breathing exercises have been added to the Pro screen. In-app purchases have been removed.

The audio subsystem has been replaced. This fixes a bug that muted all audio.

A bug that muted all audio has been fixed.

Improved heart rate measurement: * Stress/relaxation level is now displayed during the breathing exercise if heart rate monitoring is running. * Heart rate measurement details view now shows the progression of the stress or relaxation level. * A diagram showing the energy distribution in the heart signal has been added to the detailed view of the heart rate measurement. The diagram can be switched on/off at the Pro settings. * Points at the Poincare plot are now colored to visualize stress/relaxation. * A demo heart rate measurement has been added. * Heart rate measurements can now be deleted. * Heart rate recordings that fail to load are now visually marked. (Thanks Uwe) * A details page for heart rate recordings that failed to load has been added. * A single message is now shown if multiple heart rate monitoring files fail to load. (Thanks Uwe) Bugfixes: * A bug, that caused a breathing exercise to stop prematurely if the screen was switched off, has been fixed. * Vibration subsystem has been replaced. This fixes a bug that caused vibrations not to work on newer devices. (Thanks Julia and Jürgen) * Audio subsystem has been replaced. This fixes a rare bug that caused the beginning of audio guides to be skipped. (Thanks Muriel) Polishing: * Menu label “Breathing Exercises” has been renamed to “Exercise Editor”. (Thanks Katharina) * Onboarding can now be navigated through horizontal swipe gestures. * Info buttons now show their explanation in a dialog. (Thanks Carsten) * Exercise diary can now be deleted. * Bluetooth subsystem has been replaced. Landscape format is now supported. French, Italian and Spanish translations have been added. The Icon has been replaced. Many (100+) performance and detail improvements.

Font scaling is now restricted to prevent the UI from reaching outside the screens boundaries. A rarely occurring bug, that caused a breathing exercise to stop immediately after start, has been fixed.

Minor improvements.

During the exercise, the ball and heart shapes now show their minimum and maximum size. A setting to enable/disable the display of the ball and heart shape's minimum/maximum size has been added to the Pro-screen. A bug that caused jerky animations has been fixed.

An option to display the remaining exercise duration has been added to the settings screen. Spoken audio guides have been added in English, German and Spanish languages. Ambient audio now slowly fades in/out. Audio guide has been changed: Inhale now uses a higher pitch tone than exhale. A rarely occurring bug that caused the app to get stuck the loading screen has been fixed. Heart rate recordings are now properly sorted. A lot of minor improvements.

This is Breath Ball 6.0, a complete redesign from scratch. Breathing exercises can now be done with the screen switched off, an exercise diary and support for heart rate monitors have been added, all pro features can now be used free of charge, and a lot more... Enjoy!

This is the first release candidate of Breath Ball 6.0 for iOS. It is a complete redesign from scratch that was more than three years in development. It brings: A completely new user interface, breathing exercises can be done with the screen switched off, an exercise journal has been added, support for heart rate monitors has been added, and a lot more...

Maintenance update.

Some bugs have been fixed

A rarely occurring bug, that forced the user to restore the in app purchases every time Breath Ball started, has been fixed.

An awesome surprise!

Breath Ball now contains four breathing exercises: 1. A newly added breathing exercise to relieve the symptoms of COPD and Asthma. 2. Heart coherence training to relieve stress and anxiety. 3. Slow paced breathing to lower high blood pressure. 4. 478 breathing technique to fall asleep faster and wake up better recovered. Additional explanations have been added to help new users getting started.

Breath Ball now contains four breathing exercises: 1. A newly added breathing exercise to relieve the symptoms of COPD and Asthma. 2. Heart coherence training to relieve stress and anxiety. 3. Slow paced breathing to lower high blood pressure. 4. 478 breathing technique to fall asleep faster and wake up better recovered. Additional explanations have been added to help new users getting started.