Apex vs Experimently

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.

Experimently is an open-source experimentation platform for A/B testing and feature flags that runs on infrastructure you manage. Its Free Preview costs nothing when self-hosted on your AWS account, with all features included; there is no hosted tier. The platform supports A/B and multivariate tests, sequential testing, CUPED, multi-armed bandits, Bayesian testing, split URL testing and LLM/model evaluation. Rollout controls include sticky assignment, staged rollouts, mutual-exclusion groups, a global holdout and automatic rollback based on error-rate and latency thresholds. Targeting offers more than 20 operators, while analysis includes frequentist and Bayesian methods, sequential mSPRT and segment breakdowns with Bonferroni correction. SDKs are listed for many programming languages and mobile platforms, but the maker says they are not yet on package registries; installation directions are in each guide. Deployment options include Docker Compose, Kubernetes through Helm, or an AWS CDK app for services in your AWS account. Assignment data stays on your infrastructure. Integrations include data platforms, business tools and email. The platform lists security and compliance features including role-based access control, SSO and audit logging.