Donnu A/B vs Optimizely
Optimizely is a reference in enterprise experimentation, with feature flags and a whole digital experience platform. Donnu solves page A/B testing without the sales process, the contract and the enterprise price.
Optimizely
Optimizely is powerful for engineering and large companies: server-side experimentation, feature flags, product-team integration and governance. If experimentation is a dedicated function in your company, it delivers that scale.
Donnu A/B
Marketing and growth rarely need all of that to test a page. They need to build the variation without filing a ticket with dev, understand the result without a statistician and start today. Donnu is built for that short path.
The honest scorecard
| Feature | Donnu A/B | Optimizely |
|---|---|---|
| Pricing | From $29/mo, transparent on the site | Quote-based, enterprise contract |
| Visual editor | Yes, on your real page, no code | Yes, but focused on technical teams |
| Statistics | Bayesian, verdict in plain language | Sequential (Stats Engine) |
| Snippet weight | Under 6KB, anti-flicker, never breaks the page | Heavier snippet |
| Languages | English, Portuguese and Spanish | English interface |
| Setup | One line of code, or GTM, WordPress, Shopify and Wix | Sales-guided implementation |
| Free trial | 14 days free, cancel anytime | No clear self-serve trial |
Why teams choose Donnu
No sales, no contract
You sign up on the site in minutes, from $29/mo. No commercial proposal, no implementation period.
Built for marketing, not just dev
Version B is built by clicking on your own page. Whoever runs the campaign can run the test alone, with no deploy.
Results in human language
Donnu tells you the probability the variation wins and gives a clear verdict, instead of asking you to interpret the statistics yourself.
Frequently asked questions
- Does Donnu have feature flags like Optimizely?
- No. Donnu focuses on web page A/B testing (text, layout and content changes). Feature flags and server-side experimentation are Optimizely territory. If your case is optimizing landing pages and product pages, Donnu covers it with far less effort.
- Who on the team can use Donnu?
- Anyone in marketing or growth. The visual editor and guided wizard are built for people who are not developers or statisticians. Optimizely usually needs more technical involvement.
- Can I trial Donnu without talking to sales?
- Yes. It is 14 days free, fully self-serve: you create the account, install the snippet and run the first test with no sales call.
An honest comparison by Donnu based on public information. Competitor features and pricing change: check their official site before deciding.