matt
2.9K posts
I compared 6 crypto cards on the exact same purchase in Europe. Test #5 👇 Same store, same EUR 9.69, same minute. Here's the all-in cost after cashback: - @ether_fi : $10.72 - @Plasma : $10.93 - @Backpack : $11.07 - @lava_xyz : $11.10 - @jup_mobile : $11.22 - @KASTxyz : $11.25 Same groceries, but a 5% gap between cheapest and priciest. FX spread, fees and cashback decide everything. Etherfi wins again, best rate plus onchain cashback. KAST is the priciest for the second test in a row, worst FX and a low-value fee on top. The wild part: all three newcomers ran cleaner rates than Plasma, but zero cashback. Plasma's 3% back still carried it to second. Your custom matchups are next. Which combo should I run first?
I compared 5 crypto cards on the exact same purchase in Europe. Test #4 👇 Same store, same EUR 7.65, same minute. Here's the all-in cost after cashback: - @ether_fi : $8.48 - @Krak : $8.58 - @Plasma : $8.63 - @wirexapp : $8.82 - @KASTxyz : $9.03 Same grocery run, but a 6.5% gap between cheapest and priciest. It comes down to FX spread, fees and cashback. Etherfi took it on the best rate plus onchain cashback. KAST charged the worst FX and a low-value fee on top. What should I test next?
“The TLDR and clarifications” 0/ At @KASTxyz we focus entirely on building and delivering for our customers. I simply shouldn’t and won’t get distracted by others. Instead we’ll “shut up and ship”. But, having said that, you are due some clarifications… 1/ You can’t hold crypto tokens on KAST yet. You can only deposit cash via bank accounts, stablecoins or convert crypto at time of deposit to stablecoins. They are then held as stablecoins securely in Bitgo and Fireblocks, including in cold wallets. 2/ For simplicity of user experience, to avoid swapping and bridging, we give users a single USD balance. You can then withdraw on multiple chains and multiple stablecoins, or cash via KAST Pay. 3/ Users have always held rights to redeem their funds at any time, and we always had a binding payment obligation to you, for what you have on our platform. And… our T&Cs have now been updated to make this very clear, and we will make this even clearer through further reviews, especially for new products. Updated: kast.xyz/legal/terms-an… 4/ We raised $80M in March 2026, from top tier institutional fintech investors like QED and Left Lane. We went through extensive due diligence from a Big4 over 3 months, before closing the round. We have a very strong corporate balance sheet, and most of our fresh funding remains unused. 5/ Just a note, that many Cash or Card products in market still don’t allow you to export keys or take the seed phrase. But DYOR. See one of the key updates in the image. Appreciate the ongoing support of customers and community, so much left to build!
