Lytms vs VWO
VWO runs the experiment. Lytms tells you what to test.
VWO is the experimentation infrastructure. You write the hypothesis ("headline B will beat headline A"), VWO runs the test against live traffic, measures statistical significance, and surfaces the winner. The platform handles traffic allocation, variant rendering, and result analysis.
Lytms is the diagnostic layer that runs before any test. It reads the page, scores each dimension against a corpus, and surfaces specific weak sentences with suggested rewrites. The output is a prioritized list of "this is what to test, and why."
The honest workflow: Lytms returns a list of candidates ranked by impact. You pick the top one, write the variant. VWO runs the test, measures the lift. Without Lytms, A/B testing platforms run on intuition + analyst time. With Lytms, the hypothesis is corpus-grounded and the candidate list is ranked.
When to pick VWO
- You have enough traffic to reach statistical significance on tests.
- You already know what to test and need infrastructure to run it.
- You need multivariate or split-URL testing across complex flows.
- You have an experimentation discipline in your team.
When to pick Lytms
- You do not yet have enough traffic for statistically significant A/B tests.
- You need to know what to test, not how to run a test.
- You want to score competitor pages to mine for hypotheses.
- You want the diagnosis without waiting weeks for test results.
Frequently asked
Does Lytms run A/B tests?
No. Lytms is the diagnostic that tells you what to test. Run the test in VWO, Optimizely, or your in-house framework.
How much traffic do I need to use VWO?
To reach statistical significance on a typical landing page test, most teams need 5,000-10,000 visitors per variant per week. Below that, run Lytms to score and improve the canonical page first.
Can VWO and Lytms work together?
Yes. Score with Lytms to surface ranked candidates; A/B test the top hypothesis in VWO. The combination ships better experiments faster than either alone.
See where your page actually sits. Score it.
One URL. About 2 minutes.