The entry price buys a different amount of headroom.
DYCRYPT Business carries 4,000 active licences for $99 per month. Devolens Business publishes 5,000 for €199 per month. The capacities are close; the monthly price is not.
Devolens also publishes more mature support and onboarding options at its higher tiers. Compare what the service includes, not only the licence count.