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Documentation Index

Fetch the complete documentation index at: https://docs.abtestly.com/llms.txt

Use this file to discover all available pages before exploring further.

Plans

ABTestly has four self-serve plans plus Enterprise.

What’s included in every plan

  • Unlimited team members
  • Unlimited historical data preserved on every site (even after downgrade)
  • Full targeting feature set
  • Real-time results dashboard
  • 99.9% snippet uptime
  • Email support

Plan limits

FreeStarterProBusinessEnterprise
Monthly price$0$49$99$249$599+
Sites12510Unlimited
Active experiments15UnlimitedUnlimitedUnlimited
Monthly tracked users (MTU)3,00050,000200,0001,000,000Custom
Annual discount20%20%20%Custom
See live pricing →

What’s a Monthly Tracked User (MTU)?

An MTU is a unique visitor (identified by a per-site hashed user ID stored in localStorage) who is bucketed into at least one experiment during the calendar month. The counter resets at 00:00 UTC on the 1st of each month.
  • If a visitor returns multiple times in the same month, they count once.
  • If they’re in 5 experiments simultaneously, they still count once.
  • If they have no localStorage (e.g., they cleared cookies, switched browser, or use private browsing), each visit is a new MTU.

What happens if I hit my MTU limit?

ABTestly never auto-charges for overages. Instead, your site enters graceful degradation:
  • Visitors already bucketed continue to see their variant. Their cached localStorage assignment is honored, exposures still flow to your dashboard, statistical validity is preserved for the active cohort.
  • New visitors are NOT bucketed. They see the original page and don’t consume an MTU.
  • No data loss. Already-bucketed users keep generating exposures and conversions.
  • You get email warnings at 80% and 100% so you can upgrade if needed.
When the calendar month rolls over, the counter resets and bucketing resumes automatically.

How it works under the hood

ABTestly maintains a Durable Object per organization that tracks distinct user hashes across all sites in that month. When the count hits 100% of your plan’s MTU, the snippet’s served config gets a degraded: true flag injected at the edge. The snippet’s new-visitor branch reads this flag and skips bucketing. The change propagates within ~5 minutes of hitting the cap (cron tick interval + edge cache TTL).

Upgrading

In your dashboard → avatar menu → Billing & Plan → choose a higher tier. Checkout is handled by Paddle (our Merchant of Record — they handle tax, invoicing, and global payments). Upgrade takes effect within 5 seconds of payment. Your new limits apply immediately.

Downgrading

Same path — choose a smaller plan. Your existing data is preserved (we call this “grandfathering”):
  • If you have 5 sites on Pro and downgrade to Starter (2 sites), your 5 sites continue running. You can’t add new sites until you’re under 2, but existing ones are unaffected.
  • Same applies to active experiments — running tests stay running.
  • MTU limit drops immediately to the new tier’s allowance. If that puts you over budget, graceful degradation kicks in.
We don’t auto-pause or auto-delete anything on downgrade. The penalty is the new lower MTU cap; everything else stays as you left it.

Cancellation

In your dashboard → Billing & PlanManage subscription → opens Paddle’s customer portal → Cancel subscription. Your subscription continues to bill (and you keep paid-tier access) until the end of your current period. After the period ends:
  • Your account is downgraded to Free tier limits
  • Your data is preserved forever (not deleted)
  • You can re-subscribe anytime to get back to your previous tier
We don’t pro-rate refunds for unused time on cancellation. The MoR (Paddle) treats unused subscription credit as account balance, which auto-applies to future invoices if you re-subscribe.

Inactivity

If you’re on the Free tier and your account has no activity for 90 days (no dashboard logins, no API calls, no exposures recorded), we’ll archive it. You’ll get a warning email at day 83. Archived ≠ deleted. Your data is preserved. Next time you log in, you’ll see a one-click Reactivate page. Click it, your account is back to normal. No re-onboarding, no re-confirming email, no data loss. Paid-tier accounts are never archived for inactivity.

Founding 100 promo

The first 100 customers who sign up for Pro get 20% off for 12 months (79/monthinsteadof79/month instead of 99/month). Coupon code: FOUNDING100 Apply at checkout. Paddle validates the redemption counter — once 100 customers have used it, the code stops working. There’s no waitlist; first come, first served.

Enterprise

For >1M MTU, multi-region deployments, SOC 2 audit support, custom contracts, or dedicated support: Contact sales → We respond within 24h on business days.