Listed here the monthly usage statistics of different versions of Opera browser in 2015 worldwide.
2015 | 2016 || 2015 | OP 12 | OP 11 | OP 10 | OP 9 | OP 8 | OP 7 | OP 6 | Others |
| December | 0.03 | 99.93 | 0.02 | 0.01 | 0.01 | 0 | 0 | 0 |
| November | 0.04 | 0.01 | 99.85 | 0.01 | 0.05 | 0.03 | 0.01 | 0 |
| October | 0.02 | 99.9 | 0.01 | 0.07 | 0.01 | 0 | 0 | 0 |
| September | 0.01 | 99.95 | 0.01 | 0.01 | 0.01 | 0 | 0 | 0.01 |
| August | 0.01 | 0.01 | 99.96 | 0.01 | 0.01 | 0.01 | 0.01 | 0 |
| July | 99.96 | 0.01 | 0.01 | 0.01 | 0 | 0 | 0 | 0.01 |
| June | 99.97 | 0.01 | 0.02 | 0.01 | 0.01 | 0 | 0 | 0 |
| May | 0.01 | 0.04 | 99.91 | 0.01 | 0.02 | 0 | 0 | 0.01 |
| April | 99.96 | 0.01 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |
| March | 99.97 | 0.03 | 0 | 0 | 0 | 0 | 0 | 0 |
| February | 0.02 | 99.94 | 0.01 | 0.02 | 0 | 0 | 0 | 0.01 |
| January | 0.01 | 99.96 | 0.02 | 0.01 | 0 | 0 | 0 | 0 |
Statistics mentioned here are based on the usage of the web browsers. Find most used browser of the year 2015.