← FreeStatisticalTools A/B test calculator
FreeStatisticalTools A/B test calculator alternatives
These tools do a similar job to FreeStatisticalTools A/B test calculator. Prices, free plans and features below come from each vendor's own site.
| FreeStatisticalTools A/B test calculator | PostHog | Statsig | AdMetricKit | AgencyAnalytics | Amplitude | BiznTools ROAS Calculator | |
|---|---|---|---|---|---|---|---|
| Starting price | Free plan | Free plan | Free plan · from $150/mo | Free plan | from $16.67/mo | Free plan | Free plan |
| Free plan | Yes | Yes | Yes | Yes | Not stated by the vendor | Yes | Yes |
| Free trial | Not stated by the vendor | Not stated by the vendor | Not stated by the vendor | Not stated by the vendor | Yes | Not stated by the vendor | Not stated by the vendor |
| Plans | Free ($0) | Free ($0); Pay-as-you-go (Same free tier each month, then pay for usage) | Developer ($0); Pro ($150/mo); Enterprise (Custom; event or experiment based contracts) | Free tools ($0) | Core (per client) ($20/mo, $16.67/mo annual) | Free ($0); Plus ($0); Growth (Custom, event based pricing); Enterprise (Custom, event based pricing) | Free tool ($0) |
| Fees and pricing notes | None stated | Same free tier each month, then pay for usage | 5M events included, then $0.05 per 1,000 | None stated | None stated | Starts at $0, first 2M events a month free; credit card required | None stated |
| Best for | Not stated | Not stated | Not stated | Agencies | Agencies | Not stated | Ecommerce, Small business |
| Key features | Conversion rate for each variant, relative uplift and the difference (B minus A) with a 95% confidence interval; z value, two-tailed p-value and a significance decision at 90, 95 or 99% confidence; A "chance B beats A" figure; Paste from Excel or upload CSV, TSV or Excel data | Product and web analytics, 1M events a month free; Session replay, 5,000 recordings a month free; Feature flags (1M requests free) and experiments; Surveys and error tracking | A/B tests and experimentation, Bayesian and frequentist; Feature flags and dynamic configs; Product and web analytics; Session replays | Campaign Funnel Forecaster; ROAS and break-even ROAS calculators; CPC, CPM, CPA and CPL calculators; CTR, CAC and conversion rate calculators | Unlimited data sources across 85+ integrations; Unlimited reports and dashboards; Unlimited staff accounts; Automated client reporting with a white-labeled portal | Product analytics; Session replay (10K a month on Free); Experimentation, guides and surveys; AI agents and MCP | Two modes: compare ad-attributed revenue with ad spend, or model break-even and target ROAS; Optional product cost, fulfillment, fee rates and fixed fees; ROAS as a multiple and a percentage; Break-even ROAS, target ROAS and contribution available for ads |
| Checked on | 2026-10-22 | 2026-10-03 | 2026-10-03 | 2026-10-07 | 2026-10-05 | 2026-10-03 | 2026-10-07 |
Prices change; confirm on the vendor's site before you buy.