Isis, the mobile wallet launched by Verizon Wireless, AT&T, and T-Mobile, is off to a rocky start.
The app is getting slammed on the Google Play store, where it is averaging a score of one-and-a-half stars after nearly 1,400 people have weighed in.
Common complaints include the incompatibility of the Isis app with rooted Android phones, as well as the complicated process of getting a special SIM card to run the service.
By requiring a special SIM and a phone compatible with near-field communications (NFC) technology, Isis hasn't made the process for using its digital wallet easy. Also, iPhone users aren't able to use the wallet because Apple's smartphones don't use NFC technology. Of course, there were similar complications when Google Wallet launched, which had few phones and even fewer NFC-enabled sales terminals to work with.
Part of the limitations are a result of the architecture of Isis, which includes features like enhanced security for fraud protection and a secure element in the SIM to store customer account information.
Isis launched on Thursday after a long trial in Salt Lake City and Austin, Texas.
A representative from Isis declined to comment.