| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| book apps for free online | 0.28 | 0.8 | 9913 | 11 |
| free online coloring book app for adults | 1.96 | 0.3 | 5633 | 33 |
| book apps for kids free online | 1.01 | 0.5 | 2297 | 79 |
| online free book reading apps | 1.59 | 0.4 | 9040 | 71 |
| free online book apps for iphone | 1.44 | 0.4 | 1416 | 98 |
