Offerpop is leading in Top 10K Sites, Top 100K Sites and Top 1M Sites.
Offerpop has better usage coverage in more websites categories. Including Arts & Entertainment, Shopping, Business & Industry, People & Society and 57 other categories.
Stackla is leading in Travel, Tourism, Sports, Accommodation & Hotels and 32 other categories.
Offerpop is leading in most countries, including United States, Poland, France, Germany and 36 other countries.
Stackla is leading in Australia, United Kingdom, Japan, New Zealand and 8 other countries.