Sign-in credit sit front and centre on virtually every platform in this category. Understanding what they are for is worth a minute far more than collecting them.

Just What a Sign-In Reward Is
The small amount for signing into the app every day, commonly increasing with unbroken days and going back to day one when a day is not claimed.
The Actual Mechanism
Habit-building. That repeated return builds one habit, and regularity drives play. That escalating mechanic introduces a penalty to missing a single day - something that is specifically its point.
Attached Terms
This credit is almost never cashable straight away. Expect the usual turnover condition, one time window, and often a maximum on how much can be taken out from activity funded by it.
The Honest Check
Set the credit against the amount a additional session usually consumes. Where a reward pulls a player toward an extra session that they had not otherwise planned, this credit is the most costly "free" thing on the
platform.
The Sensible Position
Collect the daily reward if
independently using the app; under no circumstances open the session solely to preserve one's streak. Current promotion terms are set out at
6Club.