Apex vs Compose

Apex combines A/B testing, feature flags, and personalization for e-commerce. It supports A/B, multivariate, server-side, and mobile-app tests, and is designed for six to ten concurrent experiments with pre-launch conflict checks. Each test requires a primary metric, planned sample size, and duration; results are withheld below 100 conversions. The default winner threshold is 80% confidence and can be set as high as 99%. Apex Operator reads a live page and prepares structured or code-level edits for review before launch. Guardian can pause a variant that is breaking or harming results, return traffic to control, and post an explanation to Slack. Its Likelihood to Win score uses matched evidence from 4.3 million tests, shop research, and live results. Integrations include Shopify, Shopware, WooCommerce, Centra, headless and custom storefronts, analytics, consent managers, and team tools. Developer access includes a versioned REST API, webhooks, CLI, MCP server, and SDKs; API keys have a limit of 100 requests per minute. Apex is made by Drip Trading GmbH and is available only inside a DRIP program. The free Starter plan is listed at free, with no card required; custom pricing applies to Apex and Enterprise.

Compose is a pay-as-you-go web platform for A/B testing and conversion rate optimization. It supports A/B/n, split URL, split theme, and split template tests, with custom goals, audiences, triggers, and traffic allocation. A visual editor and audience targeting are available for building and directing experiments. For planning, teams can use a shared hypothesis backlog, PIE prioritization, and an experimentation roadmap. Reports update in real time and include frequentist statistical calculations; GA4 and BigQuery integrations are listed. Shopify users can create no-code experiments on themes and templates through Shopify’s editor. Compose says its client-side testing uses AWS Lambda@Edge for speed and to avoid flicker. The product lists unlimited experiments, variations, collaborators, and projects. You can explore it without charge until launching a first experiment, but there is no traditional free trial. The Early Adopter Plan is $0.00 per month, billed at $0.0012 per monthly tested user, with usage billed monthly for the prior month. Server-side testing is not available.