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Marketing · head to head

Customer.io vs SurveyLegend

Customer.io logo

Customer.io

Marketing

Data-driven messaging for teams getting started, scaling and beyond

From
$15/month
Free plan
No
Full reviewWebsite
SurveyLegend logo

SurveyLegend

Surveys

Swedish survey tool hosted only in Frankfurt, where response limits are counted per survey and export is capped below what you can collect

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only SurveyLegend has a free tier, so it costs nothing to try first.
  • Each has a real cost: Customer.io essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that; SurveyLegend every paid tier can collect more responses than it can export, with Pro gathering 5,000 per survey but exporting only 1,000 and Business gathering 20,000 but exporting 10,000, so data you have paid to collect can be stranded inside the product.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Customer.io and SurveyLegend actually diverge.

Attributes where Customer.io and SurveyLegend differ
AttributeCustomer.ioSurveyLegend
Starting price$15/monthFree
Pricing modelsubscriptionPer month by responses per survey
Free tierNoYes
PlatformsWebWeb, iOS, Android
CategoryMarketingSurveys

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Customer.io

Nothing recorded that SurveyLegend does not also cover.

Only in SurveyLegend

  • Per survey response limits
  • Frankfurt hosting on every plan
  • Image-led question types
  • Live analytics
  • Conditional logic flows
  • REST API and webhooks

What people use each for

The jobs each tool is most often brought in to do.

Customer.io

  • Orchestrating multi-channel customer journeys from signup to retentionnot SurveyLegend
  • Personalizing email and SMS campaigns using customer profilesnot SurveyLegend
  • Triggering automated messages based on user behaviornot SurveyLegend
  • Coordinating cross-team messaging without rebuilding campaignsnot SurveyLegend

SurveyLegend

  • A European organisation that needs survey responses to stay in the EU without paying for an enterprise tier to get itnot Customer.io
  • Occasional research where a few surveys each collect a large number of responses, which suits a per-survey quota better than a monthly onenot Customer.io
  • Consumer-facing surveys where picture choice and visual scales lift completion rates on phonesnot Customer.io
  • Small teams that want a fixed low monthly cost rather than usage-based billingnot Customer.io

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Customer.io

  • Essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that
  • Standard and Premium tiers show custom pricing only, and Enterprise is negotiated rate, so three of the four published tiers require a sales conversation
  • Monthly plans accept credit card only; annual billing via invoice (ACH/wire) requires the annual commitment

SurveyLegend

  • Every paid tier can collect more responses than it can export, with Pro gathering 5,000 per survey but exporting only 1,000 and Business gathering 20,000 but exporting 10,000, so data you have paid to collect can be stranded inside the product.
  • The free Starter plan cannot export data at all, only preview it in the live analytics, which makes it a demonstration rather than a usable plan and means any real project starts as a paid one.
  • The vendor claims neither SOC 2 nor ISO 27001 nor any third-party audit, and its GDPR page does not disclose hosting location, subprocessors or transfer mechanisms, so an enterprise security review will stall regardless of how good the residency story is.
  • The integration list runs to roughly four connectors with no native Zapier, Make, Slack, Teams, HubSpot or Airtable support, so anything beyond Google Sheets or Mailchimp has to be built against the API, which itself is unavailable below the Business tier.
  • No seat, collaborator or team permission model is documented anywhere in the pricing, features or user guide, so an organisation that needs several people to share and administer surveys has no described way to do it.

Pricing, plan by plan

Customer.io

$15/month
  • Essentials$15/month
    • Base profiles starting at 5,000
    • Email sends: 1 million monthly
    • Community and email support
  • Standard$null/month
    • Mid-tier scaling across channels
    • Higher profile and email allowances
    • Email and priority support
  • Premium$null/month
    • Advanced custom workflows
    • Dedicated support
  • Enterprise$null/month
    • Custom pricing for dedicated infrastructure
    • HIPAA compliance
    • Dedicated hardware

SurveyLegend

Free
  • StarterFree
    • Free forever
    • 3 surveys, 1,000 responses per survey
    • No data export at all
  • Pro$15/month
    • 170 USD per year billed annually, 19 USD if billed monthly
    • 20 surveys, 5,000 responses per survey
    • Export capped at 1,000 responses per survey
  • Business$25/month
    • 300 USD per year billed annually, 39 USD if billed monthly
    • Unlimited surveys, 20,000 responses per survey
    • Export capped at 10,000 responses per survey
  • Legendary$65/month
    • 780 USD per year billed annually, 89 USD if billed monthly
    • Unlimited surveys, 100,000 responses per survey
    • Unlimited data export

Which should you pick?

Choose Customer.io if

Nothing in the data separates Customer.io from SurveyLegend on the points above - pick on price and on how each one feels to use.

Customer.io review

Choose SurveyLegend if

  • You need per survey response limits.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want frankfurt hosting on every plan.
SurveyLegend review

Questions people ask

Is Customer.io or SurveyLegend better?
Neither clearly leads. Customer.io starts at $15/month and SurveyLegend at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Customer.io or SurveyLegend?
SurveyLegend has a free tier; the other does not. Paid plans start at $15/month for Customer.io and Free for SurveyLegend.
Does Customer.io or SurveyLegend run on more platforms?
Customer.io runs on Web. SurveyLegend runs on Web, iOS, Android.
Can I use SurveyLegend for free?
Yes. SurveyLegend has a free tier, so you can try it without paying. Customer.io starts at $15/month.
What is Customer.io best used for?
Customer.io is most often used for orchestrating multi-channel customer journeys from signup to retention, personalizing email and sms campaigns using customer profiles, triggering automated messages based on user behavior, coordinating cross-team messaging without rebuilding campaigns. Of those, orchestrating multi-channel customer journeys from signup to retention and personalizing email and sms campaigns using customer profiles are not what SurveyLegend is typically brought in for.
What can Customer.io do that SurveyLegend cannot?
SurveyLegend covers Per survey response limits, Frankfurt hosting on every plan, Image-led question types, Live analytics.

Answered from the vendors’ own pages

Customer.io: How much does Customer.io Essentials cost?

Customer.io Essentials starts at $15/month and includes 5,000 base profiles with 1 million monthly email sends, community and email support, and data-driven messaging tools. Customers can choose monthly or annual billing.

Source
SurveyLegend: Where is my data stored?

In Frankfurt, Germany, on DigitalOcean, on every plan including the free one, with backups also held in Frankfurt. There is no United States transfer and no residency upgrade to buy.

Customer.io: What are Customer.io's usage-based add-on costs?

Beyond plan limits, Customer.io charges $0.009 per additional profile, $0.12 per 1,000 additional emails, and $10 per 100K AI credits. Messages exceeding plan limits are charged at nominal rates. Billing occurs on the subscription anniversary.

Source
SurveyLegend: What is the catch with the free plan?

You cannot export your data. You can build three surveys, collect a thousand responses each and view the analytics, but getting the raw responses out requires a paid plan.

Customer.io: Does Customer.io offer a startup discount?

Yes, early-stage companies that have raised under $10 million qualify for a full year free through Customer.io's Startup Program with annual billing.

Source
SurveyLegend: Why does Pro cost 170 USD a year when the page shows 15 USD a month?

The published annual total is 170 USD, which is ten dollars below twelve times the stated monthly-equivalent rate. Both figures are printed on the vendor pricing page.

SurveyLegend: Is it suitable for an enterprise rollout?

Probably not. There is no SOC 2 or ISO 27001 certification, no documented team or permission model, and support is by email with phone access only on the top tier.

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