Tools
Three calculators for the numbers that decide whether an offer is worth taking, plus the method behind them. The calculators run entirely in your browser — nothing you enter is transmitted, stored, or logged, and none of them fetch live odds from any operator.
Provably Fair Verifier
Was this result tampered with?
Confirm a revealed server seed matches the hash the casino published before you bet, and recompute any result from the seed pair with HMAC-SHA256.
Wagering Requirement Calculator
Is this bonus actually worth taking?
Turn a bonus multiplier into required turnover and expected loss, adjusted for game RTP and weighting, and see the break-even multiplier for the offer.
Case Opening EV Calculator
What is this case really worth?
Enter a published drop table to get the expected value, effective RTP and house edge of a case, plus a check that the listed chances sum to 100%.
Evaluating Case Site Offers
How should I read this promo?
The method behind the calculators: what a deposit percentage is really worth against the house edge, and how free cases and site credit differ from it.
Why these
The calculators map onto the three questions worth asking before money moves, and each is answerable with arithmetic rather than trust:
- Was the result honest? The verifier answers this cryptographically. It is the only one here with a hard yes or no.
- Is the bonus worth clearing? A wagering requirement is a cost, and the calculator prices it against the bonus so you can see which is larger.
- What are the odds actually paying? A drop table contains the house edge whether or not the site states it. The EV calculator extracts it.
The fourth page is the reasoning the other three encode — worth reading once if you want to know why a 5% deposit bonus is smaller than it sounds, or why a free case is the only offer in this category that is positive by construction.
None of them will tell you an operator is trustworthy, and none of them make a negative edge positive. What they do is replace a marketing claim with a number you worked out yourself.