At a glance
| Riggle | Optimizely | |
|---|---|---|
| Who builds the changes | AI agents, or your team in code. Nothing goes live until you launch it. | Your team, in an editor. AI agents (Opal) can draft a test for review. |
| Goal | One goal. Riggle finds the steps on your site that predict it and reads every change against them. | Metrics you choose for each test. |
| Who decides | Live traffic: what works gets more visitors, what doesn’t gets fewer. It keeps getting better on its own. | Your team, from Optimizely’s Stats Engine. |
| Results | Your own analytics. | In Optimizely, or your data warehouse. |
| Personalization | By traffic source, ad campaign or keyword, device and country. | Audiences you define. |
| Setup | One script tag, about 1.4 KB. No flash of the original page. | A snippet, synchronous by default. |
| Server-side tests, feature flags | No. | Yes. |
| Pricing | On request. Free demo. | Custom. No public prices. |
Where Optimizely is stronger
- Server-side tests and feature flags.
- Warehouse-native analysis.
- A Leader in the Forrester Wave for experience optimization, Q3 2026.
Where Riggle is stronger
- Agents build the changes, so a team or agency runs more experiments.
- One goal: Riggle finds the steps on your site that predict it.
- Autopilot moves traffic to what works and pulls losers early, from those steps, before the goal has enough data. It keeps getting better on its own.
Which one fits
Choose Optimizely if you need server-side tests or feature flags.
Choose Riggle if you want more experiments live without more people: agents build them, your team or agency approves them.