Pricing
This is where the comparison gets stark.
Optibase: Free plan available. Paid plans at $69/mo, $139/mo, $289/mo, and enterprise tiers from $3,580/yr to $18,980/yr. All pricing is public. Sign up without a sales call.
Optimizely: No public pricing. Custom contracts typically start around $50,000/year and can go well above $100,000/year for larger deployments. Annual commitments required. You need to go through a sales process to get a quote.
For the A/B testing, split testing, and basic personalization that most marketing teams need, Optibase costs a fraction of what Optimizely charges.