What I like about Klook is that you can book activities for a good price. I find this especially useful when in countries where you don't speak the language and you want to make sure the organisers don't charge too much. I used it most in Thailand. Use the code to get โฌ5 off your first activity.
Vivid Money gives you โฌ20 after you spend โฌ20. In the first month, you get also get cashbacks of up to 25% on Adidas, Puma, H&M, Rituals, Douglas, Just Eat, Total, Carrefour and other brands. After the Prime trial finishes, you can switch to the free version, which still gives 4% cashback on .