Compose vs GrowthBook
Compose
compose.co
GrowthBook
growthbook.ioSide by side
| Figure | Compose | GrowthBook |
|---|---|---|
| Price from | Free | $40/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 4 | 9 |
| Spec score · A/B Testing Tools | 8.1 (#19) | 9.1 (#4) |
| Spec score · Experimentation Platforms | 8.0 (#10) | 9.0 (#4) |
| Product | Compose is a pay-as-you-go A/B testing and conversion rate optimization platform. | GrowthBook is a warehouse-native platform for experimentation, feature flags, and product analytics. |
| Support | Support options include a complimentary one-hour onboarding session, email support, a help center with tutorial videos, and paid advanced support or technical sessions. | Community Slack support is available on every plan; Pro and Enterprise add in-app chat and premium email, while Enterprise adds shared Slack, onboarding and training. |
Plans
Compose
- Early Adopter PlanFree
- Half-day with Compose team$400, paid once
- Full-day with Compose team$800, paid once
- Advanced Support Add-onPrice not published
GrowthBook
- Open SourceFree
- Open Source (Self-Hosted)Free
- StarterFree
- Starter (Cloud)Free
- Pro$40 a month
- Pro (Cloud)$40 a month
- EnterprisePriced on request
- Enterprise (Cloud)Priced on request
- Enterprise (Self-Hosted)Priced on request
In their own words
Compose
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.
GrowthBook
GrowthBook has no write-up on Specifiction yet; its figures are above.