Free Chip/Cash
Free Chip is probably the most common no deposit bonus you may 
come across, and it is also the most practical choice compared to the other two. As the name suggests, Free Chip will grant you basically free money to play everything allowed. Most of the time, you can play anything besides lotteries or some specialty games; however, the choice is narrowed down to just slots in some rare cases.
Free Chip is subjected to terms and conditions, such as wagering requirement (playthrough) and wagering contribution. A standard playthrough rate is 60 times the total bonus amount since this bonus requires no deposit. Slots stake usually contribute 100% towards the playthrough, whereas bets from other games only add 5 to 10% at maximum. It means that if you redeem a $100 no deposit bonus and play slot at a $1 stake, you will need to spin 600 times in order to fulfill the requirements. That number is 10 to 20 times higher in other games such as blackjack or craps.
Free Spins
As mentioned, after successful account registration, the no deposit bonus casino will give you either Free Chip or Free Spins. Basically, if you use Free Chip to play slots only, it is the same as using the other option. Free Spins allow you to play specified slots at a certain time for free, usually with $1 per spin.
Similar to Free Chip, Free Spins also has a playthrough requirement. The standard rate is usually lower than that of Free Chip, at 40 times the winning amount. This is understandable as the winning amount is also lower than the Free Cash no deposit bonus.
Cashback
The last option is Cashback, which is also the least favorable bonus of the three. Many casinos do not include this option on their promotion page; instead, you need to contact the support team to have it enabled. As you play casino games, you will get back a percentage of your losses. The rate and the capped amount will depend on your VIP status, so this option is optimal if you plan on staying at this casino for a while.
No deposit bonuses are obviously the best gifts you can expect from any casino; however, not everyone is eligible for this type of bonus. In theory, all the new customers can redeem this bonus because that’s what it is designed for. That being said, some casinos do not allow residents from certain countries to register and claim their promos. How so?
Online casinos consider no deposit bonuses as marketing expenses, in which most of them do not provide any real value for the casino. The only good thing those bonuses can achieve is brand promotion, as more and more players will visit and try their luck on the site. Hopefully, some of them will stay longer and deposit real money. Those who remain are called casual players, while those who abuse the bonuses and walk away are bonus hunters or gatherers.
How could we determine which one is a casual player and which one is a bonus hunter? It actually depends a lot on particular countries and their residents’ habits. For example, players from Western Europe are more likely to be casual and will cash in after using the no deposit bonus. On the other hand, players from Russia and Eastern Europe tend to look for free stuff and will not commit to any casino in particular. This is why many casinos won’t provide any no deposit bonus to residents from those territories, and some countries have better promos than others.