Same brands, same weights, two different answers. The numbers below are deposit-tested and the scores recompute every build.
| Spec | Jack | Rollbit |
|---|---|---|
| WCI score | 60 (Adequate) | 77 (Strong) |
| Tier | B | A |
| Overall rating | 8.4/10 | 7.6/10 |
| Welcome bonus | 100 FS + $100 sports | 15% rakeback (24h) |
| Promo code | MAXBET | TOPBONUS |
| Cryptos accepted | 13 | 9 |
| Min deposit | $50 (casino), 1x deposit turnover before withdrawal | 0.00002 BTC (~$2) |
| Withdrawal speed | under 5 min | under 5 min |
| Licence | Curaçao Gaming Control Board, License OGL/2024/1800/1049 | Curaçao Gaming Authority (sub-licence under Curaçao master licence) |
| Year founded | 2022 | 2020 |
| Game count | 6,000+ | 7,000+ |
| Live streaming | No | No |
| Component | Jack | Rollbit |
|---|---|---|
| Reserves (30%) | 20 | 78 |
| Payout (25%) | 85 | 85 |
| Age and history (20%) | 77 | 78 |
| Licence (15%) | 70 | 70 |
| Trend (10%) | 65 | 65 |
Take Rollbit. WCI 77 against 60 is not a close score. On withdrawal speed, on rollover terms, on coin breadth, the gap is large enough that the smaller-volume player and the heavier-volume player both end up at the same answer. Jack is the right pick only if it offers a specific bonus structure or product range you cannot get elsewhere, and on the brands we test, that case is rare.