Reaching level 30 costs 65,260 badges in total, or 652,600 gems (10 gems per badge). Unlike books, the cost does not climb evenly: it jumps hard from level 13 onwards.
| Level | Badges | Running total | Gems |
|---|---|---|---|
| 1 | 0 | 0 | 0 |
| 2 | 5 | 5 | 50 |
| 3 | 5 | 10 | 50 |
| 4 | 10 | 20 | 100 |
| 5 | 20 | 40 | 200 |
| 6 | 30 | 70 | 300 |
| 7 | 40 | 110 | 400 |
| 8 | 50 | 160 | 500 |
| 9 | 75 | 235 | 750 |
| 10 | 100 | 335 | 1,000 |
| 11 | 125 | 460 | 1,250 |
| 12 | 150 | 610 | 1,500 |
| 13 | 200 | 810 | 2,000 |
| 14 | 300 | 1,110 | 3,000 |
| 15 | 400 | 1,510 | 4,000 |
| 16 | 500 | 2,010 | 5,000 |
| 17 | 750 | 2,760 | 7,500 |
| 18 | 1,000 | 3,760 | 10,000 |
| 19 | 1,500 | 5,260 | 15,000 |
| 20 | 2,000 | 7,260 | 20,000 |
| 21 | 2,500 | 9,760 | 25,000 |
| 22 | 3,000 | 12,760 | 30,000 |
| 23 | 3,500 | 16,260 | 35,000 |
| 24 | 4,000 | 20,260 | 40,000 |
| 25 | 5,000 | 25,260 | 50,000 |
| 26 | 6,000 | 31,260 | 60,000 |
| 27 | 7,000 | 38,260 | 70,000 |
| 28 | 8,000 | 46,260 | 80,000 |
| 29 | 9,000 | 55,260 | 90,000 |
| 30 | 10,000 | 65,260 | 100,000 |
| Level 1 to 30 | 65,260 | 652,600 |