01How do Apex and GrowthBook compare at a glance?
| Apex by DRIP | GrowthBook | |
|---|---|---|
| Built for | Shops whose tests keep coming back flat: the constraint is choosing which tests to run, not building them | Engineers, data teams, product managers and growth teams (vendor) |
| Shop systems | Installs as a Shopify app: two-click install via link, server-side tracking, first-party data | Shopify through a theme snippet and a Chrome extension; other web and server apps through “24+ SDKs” |
| Can test | Pages and page elements, redirect tests, A/A tests, parallel tests with optional exclusion groups, global holdout, feature flags and staged rollouts | Page content and layout, URL redirects, any code path behind a feature flag |
| Prediction before launch | Likelihood to Win per test idea, backed by 4.3 million A/B tests from 151,000 shops | None found |
| Building tests | Visual builder (Operator), code editor, experiment config as code, CLI preview links, MCP | AI Visual Editor as a Chrome extension (Pro and Enterprise), SDK feature flags, preview links, MCP server |
| Statistics and metrics | Fixed-horizon with confidence; revenue per test; profit per test on Shopify; Guardian auto-stop | Bayesian (default) and frequentist; sequential, CUPEDps and bandits on Pro; metrics defined in your warehouse |
| Heat maps | Per variant: clicks, scroll depth, average fold, funnel steps | None found |
| AI and agents | Apex chat in the app, backlog with auto-classification and score, MCP and CLI | AI mode in the visual editor, MCP server, Agent Skills plugin for coding agents |
| Data location | Hosting in the EU plus UK; GDPR in place | Cloud on AWS; EU region for event data since September 11, 2026, application in the US; self-hosting possible |
| Entry price | Not published; card-free free tier for one store; book a call | Free Cloud Starter (up to 3 users) and free self-hosted open source; Pro “$40 / seat / month” |
| Reviews | No public review profile yet | G2: 4.6 out of 5 from 25 reviews (search result, October 2026) |
Two rows decide most evaluations: who runs the tool day to day, and where your experiment data lives.
02What is each tool built for?
GrowthBook: warehouse-native experimentation for product teams
GrowthBook’s homepage calls it “the warehouse-native platform used by modern product teams for experimentation, feature flags, and product analytics.” The vendor names engineers, data teams, product managers and growth teams as its users and states that “3,000+ companies” use it, among them Dropbox, Khan Academy and Wikipedia. Most of its code is public on GitHub under the MIT license; several directories use the GrowthBook Enterprise License.
Warehouse-native means GrowthBook reads experiment data from your own warehouse. It lists “11+” data sources, including BigQuery, Snowflake, Databricks, Redshift, ClickHouse and Postgres. The vendor says “no PII ever leaves your data warehouse; only aggregate data is accessed.” The other side: analysis needs a properly instrumented warehouse.
Apex by DRIP: a prediction for every test idea
Apex is built for shops whose tests keep coming back flat: the constraint is choosing which tests to run, not building them. It has three layers.
- Test memory: 4.3 million A/B tests from 151,000 shops, collected since 2011. Every test idea gets a Likelihood to Win before launch.
- Testing tool: build, launch and evaluate tests directly in the shop, with heat maps per variant, profit per test and the chat.
- Managed execution: tests built, checked, launched and read together with the DRIP team.
03What can you test with each tool?
| Test type | Apex by DRIP | GrowthBook |
|---|---|---|
| Pages and page elements | Yes | Yes, through the AI Visual Editor (Pro and Enterprise) |
| Landing pages and full-page alternatives | Redirect tests | URL redirect experiments |
| Theme sections | Pages and page elements | None found as a named feature |
| Prices, discounts, shipping | Not in the documented feature list | Not documented for Shopify |
| Checkout | Not in the documented feature list | Not addressed in the Shopify docs |
| Feature flags and rollouts | Feature flags and staged rollouts | Core product, unlimited flags on all plans |
| Parallel tests and exclusion groups | Parallel tests on the same traffic with optional exclusion groups | Exclusion groups not documented in the pages we read |
| Holdouts | Global holdout | Enterprise plan |
GrowthBook reaches beyond the storefront. With its “24+ SDKs”, including server-side SDKs and edge apps for Cloudflare and other providers, a team can put any code path behind a feature flag. If your experiments live in application or back-end code, that is a clear advantage for GrowthBook.
Neither tool documents price, discount or checkout tests. If pricing is your main question, look at a tool built for pricing experiments.
04How do tests get built and launched?
GrowthBook
GrowthBook’s AI Visual Editor runs as a Chrome side-panel extension. In AI mode you “describe the change in plain language ... and the editor proposes the edits for you to preview and accept.” Manual mode edits “content, typography, layout, background, classes, and more.” The editor comes with Pro and Enterprise, not with the free Cloud Starter plan.
The vendor names two limits. The editor needs “a front-end web app in a browser (not native mobile or desktop)”, and “Heavily client-side-rendered apps (React, Vue, Svelte) may flicker or fight the SDK when the framework re-renders the DOM.” On Shopify, set-up means creating an SDK Connection of type “Shopify” and pasting a snippet into theme.liquid “just before the closing </head> tag”. We found no GrowthBook Shopify app.
For QA, GrowthBook offers “Preview links, a debug panel, and warnings when you edit a live experiment”. Custom pre-launch checklists are on Enterprise; auto-rollback comes with Pro.
GrowthBook’s MCP server works with “Cursor, Claude, and VS Code, or anywhere that supports MCP”. It creates flags and experiments and retrieves results. An Agent Skills plugin serves coding agents.
Apex by DRIP
Apex offers experiment config as code, a code editor and a visual builder called Operator. CLI preview links handle QA via preview before a test goes live. An MCP connection lets a shop owner build and read tests from ChatGPT or Claude without a terminal; the CLI is the developer path.
Clients see four QA checks per test: all devices, tracking and targeting, responsive, and matches design. Guardian stops a test automatically at a revenue loss threshold. With managed execution, tests are built, checked, launched and read together with the DRIP team.
05How are winners chosen before launch?
Apex calls its method Prediction-Based Experimentation. The plain version: we know what shops like yours tested and which tests won. Every test idea gets a Likelihood to Win before launch: one percent figure per test idea, shown with how many tests back it.
In the holdout check, within a shop, the top third of ideas won 1.4 to 1.6 times as often (press release, September 29, 2026). Predictions for 33 brands were scored and frozen in early September 2026. We publish the first results from November 2026.
This page is one of a series that compares Apex with twelve testing tools. Apex scores each idea against 4.3 million observed A/B tests from 151,000 shops and shows how many tests back each score. The nearest published figure in this comparison is Kameleoon’s Ideate, trained on more than 20,000 experiments; Varify cites 10,000 or more test patterns; no other vendor in this comparison publishes a count of tests behind its recommendations (vendor pages checked October 2026).
GrowthBook’s AI works at the building step: AI mode drafts edits from a plain-language description. We found no feature for generating or prioritising test ideas, and GrowthBook publishes no training data.
A team that already picks winning tests well gets less from the prediction layer.
06Which statistics and metrics does each tool use?
GrowthBook
GrowthBook runs a Bayesian engine by default and a frequentist engine on request. The vendor explains: “We default to Bayesian statistics because they provide a more intuitive framework for decision making.” The Bayesian result is a “chance to win”, and the docs advise: “You typically want to wait until this reaches 95%.” Sequential testing (Pro and Enterprise) and multiple testing correction need the frequentist engine.
Pro adds CUPEDps variance reduction, multi-arm bandits and ratio, funnel, retention and quantile metrics. Enterprise adds post-stratification, contextual bandits and holdouts. An automatic check flags sample ratio mismatch, and guardrail metrics are supported.
Revenue and profit metrics are not documented as built in; you define metrics from your own warehouse. An automatic stop for losing tests is not documented.
Apex by DRIP
Apex uses fixed-horizon statistics with confidence. Each test reports its main metric, lift and runtime revenue. On Shopify, Apex also reports profit per test: discount share, refund share and profit per sale. Guardian stops a test automatically at a revenue loss threshold.
Apex shows heat maps and behaviour per variant: clicks, scroll depth, average fold and funnel steps. Integrations with Clarity and Hotjar are in beta. For GrowthBook we found no heat maps or session recordings.
07What do GrowthBook and Apex cost?
| Plan | Price | Basis | What it includes |
|---|---|---|---|
| Cloud Starter | Free | Per seat, up to 3 users | 1 project; unlimited flags, experiments and traffic; no credit card |
| Cloud Pro | “$40 / seat / month” | Per user, up to 30 users | 3 projects; AI Visual Editor, bandits, sequential testing, CUPEDps |
| Cloud Enterprise | Custom | Not published | SSO and SCIM, holdouts, post-stratification, 99.99% SLA |
| Self-hosted Open Source | Free | No seat limits | 1 project, community support |
| Self-hosted Enterprise | Custom | Custom licensing | Adds AI Visual Editor, bandits, holdouts and more |
GrowthBook Cloud also lists usage add-ons. The managed warehouse includes 1M events a month on Starter and 2M on Pro, then “$30/M”. CDN requests include 2M on Pro, then “$10/M”, and CDN bandwidth includes 20GB on Pro, then “$1/GB”. Trial terms, contract length and setup fees are not published.
Support runs from community support on free plans to a dedicated channel on Enterprise. GrowthBook states “1/2 the cost of other solutions” without a published method or base.
Apex pricing is not published. A card-free free tier for one store exists. To see the full offer, book a call. If you need a published price list before a conversation, GrowthBook has one and Apex does not.
08Where does the data live, and which certifications apply?
GrowthBook
GrowthBook Cloud is hosted on AWS. Since September 11, 2026 an EU region (AWS eu-west-1, Ireland) is available “for every GrowthBook Cloud plan” for event ingestion and storage. “The GrowthBook application itself: login, the UI, your configuration, and computed experiment results” stays in the US. The DPA and Standard Contractual Clauses “remain unchanged”.
GrowthBook states SOC 2 Type II and GDPR, COPPA and CCPA compliance. Self-hosted, it states HIPAA capability and an air-gapped option. We found no ISO 27001 certificate and no subprocessors page. Consent handling is not documented in the pages we read.
Apex by DRIP
Apex has GDPR in place, hosts in the EU plus UK and has DPAs for the US tools it uses. ISO 27001 and SOC 2 are in progress; Apex holds neither certification yet. Apex supports most Shopify GDPR consent apps.
Said plainly: on certification GrowthBook is ahead today, with SOC 2 Type II stated. On where the application runs, Apex hosts in the EU plus UK, while GrowthBook Cloud keeps its application and computed results in the US unless you self-host.
09When is GrowthBook the better choice?
- You want to own the stack. The full platform is open source and free to self-host with unlimited traffic, from one Docker image plus MongoDB. Self-hosted, GrowthBook states HIPAA capability and an air-gapped option.
- Your experiments live in code and your data lives in a warehouse. “24+ SDKs”, “11+” warehouse sources and Bayesian, sequential, CUPEDps and bandit methods suit a data team.
- You need a published price and a certification now. Cloud Starter is free for up to 3 users and Cloud Pro is “$40 / seat / month” (checked October 2026). GrowthBook states SOC 2 Type II.
One more case where Apex is not the right choice: a shop that cannot ship a test a week yet should build that habit on a lighter tool first. Buying prediction before you can execute is the wrong order.
10When is Apex the better choice?
- Your tests keep coming back flat. Every test idea gets a Likelihood to Win before launch, backed by 4.3 million A/B tests from 151,000 shops, so selection improves before anything is built.
- You want shop metrics per variant in the testing tool. Heat maps per variant, profit per test on Shopify (discount share, refund share, profit per sale) and Guardian auto-stop at a revenue loss threshold.
- You want help running the program. With managed execution, tests are built, checked, launched and read together with the DRIP team.
11Apex or GrowthBook: which should you choose?
If your experiments live in application and server code, your team runs a data warehouse, and you want open source, self-hosting or a published per-seat price, GrowthBook fits that constraint. If you run an online shop and your problem is choosing which tests to run, Apex fits, because every test idea gets a Likelihood to Win before anything is built. GrowthBook gives you more statistical methods and a SOC 2 Type II statement today; Apex gives you heat maps per variant, profit per test on Shopify and the DRIP team to run tests with you. Check the facts above at both vendors before you decide, since plans and features change.
