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Plans

ABTestly has four self-serve plans plus Enterprise.

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What’s included in every plan

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

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Plan structure

For current monthly prices, MTU caps, and annual totals, see the pricing page — it’s the single source of truth and is always up to date.

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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.

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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.

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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).

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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.

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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.

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Cancellation

In your dashboard → Billing & Plan → Manage 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.

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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.

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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.