Convert vs Customer.io
Side-by-side plans, pricing, and feature gates for Convert and Customer.io, verified . Convert is primarily a/b testing; Customer.io is primarily marketing automation.
Plans side by side
Every published plan from each vendor, with the headline monthly anchor price. Some prices scale with subscriber count or seats; full detail lives on each tool's page.
Convert
- Growth$299/mo
- Pro
Most popular: $420/mo billed yearly
$420/mo - EnterpriseCustom
Customer.io
- Essentials
Entry tier with the visual workflow builder
$100/mo - Premium
Custom volume, HIPAA available, daily routines
$1,000/mo - Enterprise
Best volume pricing with dedicated infrastructure
Custom
Limits at the entry paid tier
Compares Growth (Convert) against Essentials (Customer.io). Both are the lowest-priced non-free, non-custom plan on each side.
| Limit | Convert | Customer.io |
|---|---|---|
| Contacts | · | 5,000 profiles (people plus objects) |
| Emails / month | · | 1,000,000 |
| Team seats | · | 1 |
When Convert wins
- Marketing and CRO teams running 5+ tests per month with budgets to match
- Companies scaling out of free Optimize or VWO Free tier deprecations
- Mid-market e-commerce running structured experimentation programs
Where Convert is the wrong fit
- Small teams that can use PostHog feature flags and experiments for free
- One-test-a-quarter buyers where cost-per-test is too high
- Enterprises with Optimizely contracts where switching incentive is weak
When Customer.io wins
- B2C and B2B teams with custom objects in their data model (accounts, subscriptions, devices) who need messaging tied to those entities
- Product-led businesses sending behavior-triggered lifecycle messaging across email, SMS, and push
- Teams needing HIPAA compliance for healthcare or digital-health workflows
Where Customer.io is the wrong fit
- Solo creators and newsletter operators (Kit or beehiiv are the right shape)
- Small businesses that need a $0/month or $20/month entry point (MailerLite or Mailchimp Free fit better)
- Teams that want a one-click WYSIWYG email tool with no data modeling required
Common questions
- Is Convert cheaper than Customer.io?
- At the entry tier, Customer.io starts at $100/mo versus Convert at $299/mo. Customer.io is cheaper at the entry. Pricing scales differently above that, so check the full plan grid.
- Does Convert or Customer.io have a free plan?
- Neither has a permanent free plan. Both offer free trials.
- Are Convert and Customer.io in the same category?
- No. Convert is primarily a a/b testing tool; Customer.io is primarily a marketing automation tool. They overlap on use case but sit in different primary categories, so the comparison is between adjacent tools rather than direct competitors.
- Which has more plans, Convert or Customer.io?
- Both Convert and Customer.io ship 3 plans. Tier counts match; the differentiation is in features and pricing structure rather than tier ladder depth.
- Where can I see alternatives to Convert or Customer.io?
- Each tool has a dedicated alternatives page on TierGauge with ranked options and verified pricing: /alternatives/convert for Convert and /alternatives/customer-io for Customer.io. Alternatives are derived from each tool's editor-flagged competitors plus same-category tools we track.
Convert: https://www.convert.com/pricing/ · Customer.io: https://customer.io/pricing/
Last verified . Pricing changes between refreshes; confirm at the vendor before purchasing.