Nomad does one thing very well: it sells cheap data, and its app-store scores show travellers are happy with the experience. For a data-hungry trip where price per gigabyte is the metric that matters, Nomad is a strong, honest choice, and this comparison scores it a close second.
Where they separate is everything around the gigabytes. Nomad’s plans are data-only, its rewards are occasional, and its support can be slow. aloSIM prices in a free phone number, uncapped tethering, 5% cashback and web-reachable support. Nomad wins price and reviews; aloSIM wins the other six.
Go with Nomad if the lowest per-gigabyte rate is the deciding factor and you don’t need the extras. Go with aloSIM if a free number, real tethering, cashback and a firmer safety net are worth a few cents more per gigabyte. Both are legitimate; what you optimise decides it.