Megan Geuss, Ars Technica:
...a person with knowledge of the matter tells Ars that Google Wallet, which launched back in 2011 and saw tepid success in the ensuing three years, has had considerable growth in the last couple of months. According to our source, weekly transactions have increased by 50 percent, and in the recent couple of months, new users have nearly doubled compared to the previous month.
Apple Pay launched 2 weeks ago. Google Wallet launched 41 months ago.