Less distracting click sound, stability improvements

◦ Long-awaited support for training in silent mode. For pronouncing letters we dropped the system speech synthesizer with all its weirdness and replaced it with a good old collection of audio clips ◦ Better and consistently sounding letters across all regions and locales ◦ Haptic feedback during brain workouts ◦ iOS 13 styled UI with the support of interactive swipe-to-dismiss and much more ◦ The background is darker now to be less distracting

Brain workout reminders Dual N-Back is proved to be working only if used consistently. With this release, it has become easy to stay on track — just enable daily reminders in settings.

Game Center support has arrived. Compete with friends and other N-Backers around the globe! Use in-game achievements as milestones of your progress.

In-app purchase validation issue fixed, please restore your purchase if ads failed to be removed. Dear customers who have shown you support for the app by removing the ads during June and have not had the ads removed, please go to app settings and press "Restore Purchase" to resolve the issue. It was a sad surprise for me that code responsible for fraud detection has been working incorrectly since recent changes in App Store receipt formats. Please, accept my apologies for ruining your experience.

- Bugfixes

- Week progress on the main page to keep you on track - Tutorial can now be read without a magnifying glass - Some tweaks here and there to make your experience better