Altcoin Exchange is not a fair exchange. Based on some limited research, reviewers concluded this service might be a real scam as there is not complete information about the service. The last date of update it received was marked for 2020, but after that, anything new has happened on the web. The access to the platform is denied, and it just provides buttons for accessing to downloading options for mobiles.
This service is available for Android and iOS devices. But if you do look for it in the app store, you won't find anything of value, and you'll see instead how customers complaint about such an undeveloped service.
This altcoin exchange was designed to bring support for a diverse number of altcoins, but this support got affected as there was never a reliable integration. Later, the service did not receive more management, and the financial assistance failed down.
In conclusion, this service is quite as limited and difficult to trust. I do not recommend it, and I suggest traders remain as far as they know of the doors of this digital product.