Lifelines
In Krono you can use "lifelines" to continue your game after it has ended. See it as a second chance, a do-over. Use a lifeline and the last error you made in the game is corrected and you can continue on your game.
A lifeline in Krono can only be used ONCE per game. So, if you've used a lifeline and the game ends due to an incorrect placed card you won't be able to continue that game session again.
Lifelines can be used in the game modes: Daily Challenge, Challenges, Three Strikes & Sudden Death.
Lifelines is an in-app purchase and can be purchased within the Krono-app. The purchase is handled by Apple via the Apple App Store. If you want a refund or have other questions about purchases and subscriptions you can contact Apple via this link.
If you've purchased lifelines on your device earlier, but deleted the app and re-downloaded it, you can restore your previous purchases to gain access to your remaining lifelines.