| free software open source software | 1.42 | 1 | 5578 | 34 | 52 |
| open source software vs free software | 0.44 | 0.7 | 5575 | 37 | 65 |
| free software vs. open source software | 1.56 | 0.2 | 480 | 38 | 77 |
| free market software vs open source software | 1.08 | 0.5 | 2539 | 44 | 68 |
| open source software and free software | 1.89 | 0.8 | 1629 | 38 | 7 |
| open source software is not free software | 1.32 | 0.3 | 9276 | 41 | 57 |
| free software vs open software | 1.79 | 0.6 | 8716 | 30 | 90 |
| free vs open source | 0.71 | 1 | 6609 | 19 | 15 |
| commercial software vs open source software | 1.21 | 0.2 | 3763 | 43 | 74 |
| are open source software free | 1.17 | 0.5 | 8426 | 29 | 18 |
| free or open source software | 1.58 | 0.2 | 1368 | 28 | 46 |
| difference between open source and freeware | 1.62 | 0.4 | 2249 | 43 | 76 |
| diff between open source and freeware | 1.85 | 0.6 | 2289 | 37 | 7 |
| free software and open source software | 1.51 | 0.9 | 8231 | 38 | 40 |
