As of Aug 2026, VWO’s pricing page lists no currency and paid CTAs route to Schedule a Demo. Stellar lists prices in the open, is 5.4KB, and starts in a free sandbox. No sales call to try it.
Some tools are great and expensive. Some are cheaper, but the UI is awkward or the script slows the page. Stellar is web A/B testing that is easy to use, priced in the open, and 5.4KB. See VWO pricing.
Stellar is 25x smaller than VWO. The snippet is async and CDN-served, so experiments do not have to cost you Core Web Vitals.
Stellar Sandbox is free to 5k MTU, with paid plans on this page. VWO publishes Growth from $314/month and Pro from $972/month (annual), but paid tiers go through a demo.
Change copy, images, and layout on the live page. Custom JS and CSS when you need more control. The editor is in the product, not behind a demo.
Agencies and performance marketers running tests across sites. Affordable enough to use everywhere, not only on the one client who can justify the contract.
Also comparing Optimizely or looking for a Google Optimize alternative?
| Compare | Stellar | VWO |
|---|---|---|
| Script weight | 5.4KB async, CDN-served | Heavier client-side tag |
| Session recordings | No | Yes |
| Mutually exclusive groups (MEG) | No | Yes |
| Targeting depth | URL rules, device, country | Deeper audiences and behaviors |
| Visual editor | Yes (no-code, plus custom JS/CSS) | Yes |
| Price at 100k MTU | Pro ≈ $199/mo (50k included + $2 per extra 1k) | Third‑party captures (May 2026): Growth ~ $665/mo (annual) / $798 monthly; Pro ~ $1,336/mo (annual). Not list prices. |
Sources: How much does VWO cost? and vwo.com/pricing. As of Aug 2026, VWO publishes no currency and paid CTAs route to Schedule a Demo.
Who should stay with VWO? Teams that need built‑in recordings, MEG, or deeper audience targeting in one platform.
No developers. No tag managers. No deployment pipelines. Open our visual editor directly on your site, make your changes, set traffic allocation, and go live.
Install one snippet and access a WYSIWYG editor directly on your site. Change text, images, styles, and layout without touching code.
Personalize landing page copy from URL parameters. Message match your ads automatically. Zero coding required.
Need more control? Add custom JS and CSS for granular adjustments. Perfect for advanced experiments and precise tweaks.
Let AI help you write headlines, CTAs, and copy variations. Generate ideas and create variants faster than ever.
Stellar's AI analyzes experiment performance across devices, traffic sources, and time periods—then tells you exactly what to do next. Get confidence scores and actionable recommendations to guide your CRO decisions.
See experiment data the moment visitors land. Break down performance by device type, UTM parameters, day of week, and hour of day. Integrates directly with GA4, Segment, and Mixpanel.
See live results with a straightforward interface. Understand exactly what's happening with each variant as traffic flows in.
Send experiment data to Google Analytics, Segment, Mixpanel, or any tracking tool via custom JavaScript hooks.
Set conversions in seconds. Choose goals based on page visits, clicks, or form submissions. No coding needed.
Track different conversion events per experiment for a comprehensive view of results and down-funnel performance.
Stellar doesn’t just track clicks—it shows you which channels, campaigns, and on-page changes actually drive purchases. From the first visit to checkout, see the revenue impact of every experiment in one privacy-first dashboard.

Heatmaps show exactly where visitors click, how far they scroll, and what they skip. Know which elements drive action and which are costing you conversions.

Map the complete customer journey across pages, forms, and checkouts. Spot exactly where visitors drop off and where revenue is leaking.
At just 5.4KB and served on a CDN, Stellar is 25x smaller than VWO. Zero impact on page speed, Core Web Vitals, and SEO.
At just 5.4KB and served on a CDN, Stellar's pure JS script is 25x smaller than competitors like VWO or AB Tasty. With minimal dependencies and a fixed size regardless of test count, it preserves your website's speed, Core Web Vitals, user experience, and SEO performance.
Visual editor, targeting, stats, heatmaps. Easy to use. No fluff.
Cookieless by default with DPA support. Stellar does not intentionally collect visitor names, emails, or form fields.
Target by URL rules, device type, and country. Show experiments only to the visitors that matter.
Shopify, Webflow, WordPress, Wix, Framer, custom builds—one snippet and you're testing.
Bayesian statistics built in. Know when you have a winner with real confidence—no guesswork.

“Some tools were great but insanely expensive. Some were cheaper, but the UI wasn't intuitive or the code was super heavy. Stellar is exactly what I was looking for. No fluff, easy setup, a free way to test before committing. Affordable, intuitive, and it does what it says.”
Charles W., Owner — connectpaidmedia.com
Read on G2
“It’s exactly what we were looking for. No fluff, easy setup, and a free way to test before committing. I can’t say enough positive things about the product and we’re using it across every client now and it’s perfect. It's affordable, intuitive, and it simply does what it says it's going to do.”
Charles Wagner, Performance Marketer
Read full postFree sandbox. Set up in minutes. If it does what it says, you will know.
Visual editor means zero developer dependency. Launch experiments in minutes.
Works with everything. WordPress, Webflow, Shopify, custom builds—all covered.
AI insights and real-time analytics reveal the truth. Then test a fix in minutes.
Statistical confidence ties every test to real outcomes. No guessing, just data.
Book a 30-minute call and we'll show you how Stellar compares for your traffic and stack.
Book a Demo