There are a lot of Magic: The Gathering apps out there. Some are great, some aren't. This one is just simple. No frills, no extra permissions and, best of all, no ads. More features are in the pipeline, but this app will always be free.
Wait, you want a guide?
1. Tap the plus or minus buttons to increase or decrease each player's life total.
2. Tap and hold those buttons to add or subtract ten life.
3. Tap the "untap" icon to reset the life totals.
4. Tap and hold the "untap" icon to change the starting life total.