Otter vs VWO
A VWO alternative with prices you can see
Enterprise optimization suite, now part of Wingify. Looking for a VWO alternative? VWO and AB Tasty now sell as one brand, Wingify, with every plan behind a demo and priced on monthly active users. Otter publishes flat plans from $39 a month with unlimited visitors. Here is a fact-checked look at how the two A/B testing tools compare.
The short answer
Which should you pick?
Both tools run experiments. The choice comes down to how you want to be billed and how much platform you need.
Otter
Choose Otter if…
- You want focused A/B testing with published, flat per-project pricing and no MAU meter
- You want GA4 events as experiment goals, not just a GA4 data push and audience import
- You want a REST API and MCP server on every plan; VWO keeps API access for Enterprise
- You want to know the price without scheduling a demo
VWO
Choose VWO if…
- You want heatmaps, session recordings and surveys from the same vendor (Wingify Behavior Analytics and User Feedback)
- You need multivariate tests, multi-page campaigns or a dedicated personalization product
- You want sequential statistics and SRM detection inside a mature enterprise platform
- You need US, EU or India data storage, or compliance reports such as SOC 2 Type II and ISO 27001
About VWO
Pricing
VWO pricing in 2026
VWO no longer publishes prices. Its pricing page now redirects to Wingify, which sells Growth, Pro and Enterprise plans through a demo and a custom proposal, priced on monthly active users for most products. As your traffic grows, so does the MAU band you pay for.
| VWO plan | Price | What it includes |
|---|---|---|
| Growth | Not published (demo) | Visual and code editors, A/B and split URL tests, rollouts, multi-armed bandits, fixed-horizon and sequential tests, SPA support. 1 domain. No multivariate tests, SRM detection or geo targeting. |
| Pro | Not published (demo) | Adds multivariate, multi-page and cross-domain tests, SRM detection, guardrail metrics, geo targeting, GA4 audience import, and heatmaps and recordings in reports. 3 domains. |
| Enterprise | Not published (demo) | Adds API access (60K calls a month), SSO, data export, approval workflow, mutually exclusive groups and 24x7 support. 5 domains. |
| Vendr estimate (third-party) | $16,330/yr median | Range $7,820 to $35,790 across 102 purchases, per Vendr's page last updated February 2026. A third-party estimate, not a VWO price. |
Checked October 11, 2026 against VWO's pricing page. Otter is $39, $79 or $149 a month flat, with unlimited visitors on every plan.
Side by side
Feature comparison
| Feature | Otter | VWO |
|---|---|---|
| Starting price | $39/mo flat, published | Not published; demo-gated (Vendr median $16,330/yr, third-party) |
| Free plan | No (14-day trial, no credit card) | No (30-day trial, no credit card) |
| Billing metric | Per project | Monthly active users (MAU), by product |
| Visitor limits | Unlimited on all plans | Set in your proposal |
| Cost as traffic grows | Unchanged | Rises with your MAU band |
| A/B and A/B/n testing | ||
| Split URL testing | ||
| Multivariate testing | Pro plan and above | |
| Visual editor | ||
| Content personalization | Targeted personalization test type | Separate product (Web Personalization) |
| Heatmaps & session recordings | Separate product (Behavior Analytics) | |
| Revenue tracking | Built-in, with multi-currency conversion | |
| GA4 integration | Sends events to GA4; GA4 events usable as experiment goals | Sends campaign data; imports GA4 audiences (Pro+); GA4 events not usable as goals |
| Statistical engine | Manual split: frequentist or Bayesian; bandit: Bayesian | SmartStats: Bayesian-powered sequential, or fixed-horizon |
| SRM detection | In the dashboard's Trust Check | Pro plan and above |
| REST API access | All plans (+ MCP for AI agents) | Enterprise plan (60K calls a month) |
| Data storage location | EU (dedicated servers in Finland) | US, EU (Belgium) or India |
| Setup | One script tag, self-serve | Demo, then script tag and dashboard configuration |
We make Otter, so we've kept to facts you can check. VWO details reflect Wingify's pricing page, help center and announcements as of October 2026 (checked October 11, 2026), and the Vendr figure is a labeled third-party estimate. Features and pricing change, so confirm on wingify.com before you buy.
In detail
Where Otter and VWO actually differ
Suite vs focused tool
VWO is a mature, full-featured testing product inside a growing suite. Next to Web Experimentation & Rollout, Wingify sells Web Personalization, Feature Management, Behavior Analytics (heatmaps and recordings), Journey Analytics, User Feedback, Search, Recommendations and Push Notifications. If you want one vendor for all of that, VWO is a credible choice. Otter has no heatmaps or session replay and won't pretend otherwise.
Otter is deliberately narrower: visual A/B/n tests, split URL tests, targeted content personalization and WordPress whole-theme tests, with goals, revenue and statistics built around making one decision well. Teams that already have analytics and replay tooling often don't want to buy a second copy of it to get testing. Our roundup of A/B testing tools covers other focused options.
VWO pricing: a demo gate vs a price list
VWO doesn't publish prices. Since the September 2026 relaunch, vwo.com/pricing redirects to Wingify's pricing page, which offers Growth, Pro and Enterprise plans for web experimentation and says: 'No fixed plans. Just a custom proposal built around your goals and scope.' Pricing is based on monthly active users for most products, and on monthly tracked users for Behavior Analytics. The free Starter plan VWO once offered is gone; evaluation is a 30-day trial with no credit card, which is generous.
Without a list price, third-party data is the best guide. Vendr reports a median VWO contract of $16,330 a year, ranging from $7,820 to $35,790, based on 102 purchases (page last updated February 2026). Treat that as an estimate, not a VWO price. Features also step up by plan: multivariate tests, SRM detection, geo targeting and guardrail metrics need Pro, and API access, SSO and data export need Enterprise.
Otter publishes everything: $39/mo for one project, $79/mo for five, $149/mo for unlimited, with every feature on every plan, unlimited visitors and a 14-day trial with no card. If knowing the price before a sales call matters to you, that's the structural difference. See Otter's pricing.
From VWO to Wingify
VWO and AB Tasty announced their merger on January 20, 2026, and relaunched as one brand, Wingify, in September 2026. Wingify, majority-owned by Everstone Capital since 2025, reports more than $105M in revenue, 4,000 customers, 700 employees and 11 offices. vwo.com and abtasty.com now redirect to wingify.com. Wingify says both suites keep running separately while engineering merges over the coming quarters, and that contracts and pricing are unchanged for existing customers. Our AB Tasty comparison covers the other half of the merger.
Otter is independent and month-to-month. The trade-off runs both ways: VWO offers enterprise procurement, compliance breadth (GDPR, HIPAA, CCPA, ISO 27001, ISO 27701, SOC 2 Type II, PCI DSS) and US, EU or India data storage, while Otter offers a bill you can start and stop without a contract. Buyers signing a multi-year VWO deal should ask how product names, roadmaps and pricing will converge.
Statistics and GA4
Wingify now describes VWO's SmartStats as a Bayesian-powered sequential testing engine, with a fixed-horizon option, sequential and Bonferroni corrections, early stopping based on a region of practical equivalence, and SRM and outlier health checks. Fixed-horizon and sequential tests are on every plan; SRM detection needs Pro. Otter's manual-split experiments can use Bayesian chance-to-beat reporting or frequentist analysis using a two-proportion z-test (Fisher's exact for small samples) at 80/90/95/99% confidence, with thresholds Bonferroni-adjusted for multi-challenger tests. Multi-armed bandit experiments use Bayesian reporting automatically. Every Otter plan includes an SRM check in the results Trust Check, but Otter has no sequential testing.
On GA4, VWO sends campaign data into GA4 and, on Pro and above, imports GA4 audiences for targeting; events streamed through Google Tag Manager can be saved as VWO metrics. It doesn't import GA4 conversion events as goals. Otter can use a GA4 event directly as an experiment goal, so the conversions you already trust are the ones your test is scored on.
When Otter is the better VWO alternative
Otter fits teams that want website A/B testing without a suite: marketers testing landing pages, stores testing product pages and offers, and agencies running tests for several clients on one $149 plan with unlimited projects. Every plan includes the visual editor, split URL tests, revenue per visitor and average order value for each variant, GA4 goals, Slack and webhook alerts, and the REST API and MCP server.
Switching is mostly mechanical: install the Otter snippet, rebuild live tests in the visual editor or wizard, let in-flight VWO campaigns finish, then remove VWO's code. Historical results stay in VWO, where Wingify keeps data for 13 months, so export anything you'll want later.
Verdict
The bottom line
VWO is a strong full-suite choice, with mature testing plus behavior analytics, personalization and feature management, now sold through Wingify with pricing that needs a demo and scales with monthly active users.
Otter wins on focus and transparency: flat published pricing with unlimited visitors, GA4 event goals, clearly documented manual-split and bandit statistics, and API and MCP automation on every plan rather than Enterprise only.
If you need the whole optimization suite, evaluate VWO seriously; its 30-day trial makes that easy. If you need A/B testing without an MAU meter or a sales cycle, Otter is the faster path. Also compare Convert, which publishes its usage-based prices in full.
Questions
Otter vs VWO — common questions
How much does VWO cost?
What's the main difference between Otter and VWO?
Does VWO have a free plan?
Does Otter have heatmaps or session recordings?
Can Otter replace VWO for A/B testing?
What happened to VWO and AB Tasty?
Keep comparing
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