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The Customer.io alternative.

Messages and replies in one place. Send in-app messages, email and push from the platform that also handles the questions, bug reports and feature requests they generate. Gleap Team includes messaging, onboarding tools and unlimited seats.

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Trusted by 4,500+ teams, from startups to global businesses
In-app messages
Email
Push
Replies
Hi Tobias, CSV export is live for your workspace. Want a quick walkthrough? Lukas•just now
1
A
Acmenow
Your September report is ready
Open Reports to review usage and retention.
Acmenow
New comment from Lukas
The export works again, sorry for the wait.
All Open 12
  1. Florian Berger
    Hi, our invoice shows 20% VAT but we have a VAT ID2m
  2. Mia Kellerman
    Every time I hit Pay now the page just spins18m
  3. Jonas Weber
    Can I export my data as CSV?1h
  4. Sofia Lindqvist
    SSO login loops back to the start4h
  5. Tom Alvarez Tomorrow
    Invoice for March6h
  6. Ade Okafor
    Webhook fires twice on ticket.created1d
  7. Priya Raman
    Love the new inbox2d
Invoice shows the wrong VAT
#146960
Today
Florian Berger2:15 PM
Hi, our invoice shows 20% VAT but we are a company in Austria with a VAT ID.
Kai 2:15 PM
Working · reading the billing docs
With a valid EU VAT ID the reverse charge applies. Add it under Settings › Billing and the next invoice is issued without VAT. Should a teammate reissue this one?
Florian Berger2:17 PM
Yes please, we need the March invoice corrected.
Kai transferred ticket to Human.
Handed to the team
Nobody has claimed this yet.
Lukas Boehler took over.
Assign to me
ReplyNoteAsk Kai Copilot
WhatsApp
Reply to Florian…
Send
Send the message, then handle what customers say back.
Compare plans
Messaging with support attached. Customer.io is a dedicated engagement platform with journeys, data tooling and channels including SMS, WhatsApp and LINE. Gleap includes in-app messages, email, push, tours, checklists and surveys as part of a support and feedback platform. Choose Gleap when the replies, bug reports and requests your messages generate should land in the same workspace.
Different units. Different scope.
USD monthly base subscriptions billed month to month. AI usage, overage, add-ons and taxes excluded; features differ.
Gleap Team
$179 / month
Unlimited seats and projects. $149/month with annual billing.
Shared inbox and Kai customer answers
In-app messages, email and push
Tours, checklists and surveys
Bug reports, roadmap and knowledge base
Start 14-day free trial
Support and messaging
Customer.io Essentials
From $100 / month
5,000 profiles, billed monthly. Premium starts at $1,000/month billed yearly.
Journeys, segments and AI Agent (beta)
Email, push, in-app, SMS, WhatsApp and LINE
1 million emails a month, then $0.12 per 1,000
Unlimited user seats, two workspaces
See comparison details
Price the scope you need. Gleap Team is $179/month month to month or $149/month billed annually, with unlimited seats and projects; Pro is $359/month or $299/month annually and adds Resolve, Code and PM, with AI usage billed separately. Customer.io prices by profiles and email volume: Essentials from $100/month for 5,000 profiles, Premium from $1,000/month billed yearly. Compare your profile count, sends and the support scope you need; a lower total cost is not assumed.

Meet your AI team.

Answer customers. Investigate issues. Build what comes next. Kai is available on every plan; Resolve, Code and PM are included in Pro and Enterprise. AI usage is billed separately.

Kai

Answers customers

Answers from your knowledge base and connected sources. Brings your team in when needed.

Meet Kai

Kai Resolve

Investigates hard tickets

Reads session evidence, logs and code. Returns findings and creates coding tasks for confirmed bugs.

Meet Kai Resolve

Kai Code

Builds the fix

Plans the change, writes and tests code, and opens a pull request. Your engineers review and merge.

Meet Kai Code

Kai PM

Prioritizes requests

Triages feedback, finds duplicates and scores requests. You decide what belongs on the roadmap.

Meet Kai PM

Send to the right people.

Trigger, audience, frequency.
Set who receives a message, what triggers it and how often it can repeat. The audience uses the same customer attributes and events your support team sees in the inbox.
Explore messaging
Trigger

The event or audience rule that sends this email.

project_created
How often

How often a person can receive this email.

Send once, first time the person matches the rules
Send every time the person matches the rules

See what each email did.

Delivery, opens and clicks.
Write the email in the editor, send it on an event or once to the matching audience, and review delivery, opens and clicks. Each email has a reply assignee, and replies come back as tickets in the inbox.
Explore email

Guide the first steps.

Checklists, tours and tooltips.
Build a checklist with an action and a completion rule for each task, or a tour for the screen it explains. Target by audience and see progress without a second onboarding tool.
Explore checklists
Get started with Acme
2 of 5 tasks completed
Next step: Invite a teammate
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Kai
Hey 👋! I'm here to assist you. How can I help you?
a few seconds ago
How do I invite a teammate?
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Thinking…
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Can a teammate help me?
Kai
I'll bring in the team.
LukasLukas
Hi, I'm Lukas. Happy to help!
just now
Write a reply…

Answer what comes back.

Kai first, your team when needed.
A message that raises a question turns into a conversation in the same widget. Kai answers from your knowledge sources and brings a teammate in when the reply needs a person.
Explore Kai

Turn a reply into a fix.

Report, findings, reviewed code.
When a reply describes a bug, the report can carry screenshots, replay and logs. On Pro, Kai Resolve returns findings to the ticket and Kai Code prepares a pull request your engineers review.
Explore Kai Resolve
Isabella Berger2:15 PM
Survey notifications never arrive for visitors who are not logged in. Chat notifications work fine.
  1. 2:16 PM
    Working · reading the console logs
  2. 2:21 PM
    Found a likely bug
    Survey pushes skip anonymous visitors: sendSurveyPush returns early without a contact email. Delivery only needs the session's subscription.
    Ask for changes Fix with Kai Code

Pilot one flow end to end.

Keep dedicated journey tooling where you need it.

Separate journeys from replies.

List the multi-step journeys, SMS, WhatsApp and data pipeline work your marketing team depends on. Keep Customer.io or a similar tool for what Gleap does not cover.

Rebuild one sequence.

Recreate one onboarding flow in Gleap: audience, trigger, email and in-app message. Follow a reply into the inbox and a reported bug into a ticket before moving more.

Plan the data move.

No native Customer.io importer is assumed. Export contacts and attributes, identify users through the SDK, and confirm which history and templates you need before switching a live flow.
How teams use Gleap
“Everything is in the same place.”
Gleap has transformed how Tridonic manages customer experience by streamlining feedback, support, and automation.
Elif Kavas
DX, Tridonic
“Essential to our development process.”
Gleap was implemented within minutes and helps MARK.ONE fix bugs quickly while building real customer relationships.
Mark Breuß
Founder, MARK.ONE
“Super-fast turnaround on feature requests.”
Transaction Network Services highlights Gleap’s turnaround on new feature requests as part of reducing errors in the product.
Martin Hardman
Transaction Network Services
Your switching questions, answered. Messaging scope, pricing units, replies and product work.
Moving from Customer.io
Why choose Gleap as a Customer.io alternative?
Choose Gleap when the messages you send and the replies they generate should live in one workspace. Gleap Team includes in-app messages, email, push, tours, checklists and surveys next to a shared inbox, Kai and bug reporting, with unlimited seats. Customer.io fits teams that need deep journey and data tooling across email, push, in-app, SMS, WhatsApp and LINE.
What does Customer.io do well?
Customer.io is a dedicated customer engagement platform. Its Journeys page documents a visual workflow builder with segment, event, form, date and webhook triggers, A/B testing, LLM actions and channels including SMS, WhatsApp and LINE, and every plan includes an AI Agent, labeled beta on the pricing page, that builds, analyzes and optimizes automations. Keep it, or a similar tool, when those journeys are central to your marketing.
Is Gleap cheaper than Customer.io?
Not on entry price. Customer.io Essentials starts at $100/month billed monthly for 5,000 profiles, below Gleap Team at $179/month month to month or $149/month billed annually. Customer.io bills by profiles and email volume, with overage at $0.009 per profile and $0.12 per 1,000 emails; Gleap bills a subscription with unlimited seats, metered email above the included volume and separate AI usage. Compare your profile count, sends and the support scope you need. Checked 15 September 2026; see Customer.io pricing and Gleap pricing.
Which Customer.io plan should we compare with?
Compare Essentials for a first messaging setup and Premium when you need custom profile volume, data warehouse destinations, anonymous messages or chat support. Essentials is billed monthly; Premium starts at $1,000/month billed yearly, and Enterprise is quoted. Companies that raised under $10M can apply for up to twelve months free on a Startup plan through Customer.io's startup program; Gleap's startup program offers 50% off Team or Pro for the first year, subject to approval.
Which Gleap plan includes the specialist agents?
Pro and Enterprise include Kai Resolve, Kai Code and Kai PM. Team includes Kai, the shared inbox, outbound messaging and onboarding tools. Pro is $359/month or $299/month billed annually; AI usage is billed through prepaid credits on every plan.
Does Gleap replace Customer.io's journeys, SMS and data pipelines?
No. Gleap sends in-app messages, email and push with audience, trigger and frequency rules, and this page does not claim parity with Customer.io's multi-step journeys, SMS, WhatsApp and LINE sends, reverse ETL or data warehouse destinations. Evaluate those requirements separately and keep dedicated tooling where you need it. See Gleap messaging.
What does switching involve?
Plan the contact and attribute export, user identification through the SDK, templates and the flows you want to rebuild. No native Customer.io importer is assumed. Export a sample, pilot one onboarding flow with a real audience, then move live sends when replies and reporting look right.
How was this comparison checked?
Gleap publishes this comparison. Customer.io's pricing, Journeys, in-app messages, AI Agent and mobile SDK pages were rechecked on 15 September 2026. Gleap claims follow current product and plan evidence. Customer quotations describe their attributed experience, not a controlled comparison with Customer.io.
Where do replies to our messages go?
Replies open a conversation in the Gleap inbox. An in-app message reply continues in the widget, an email reply arrives as a ticket with the assignee you chose, and Kai answers routine questions before handing over to your team. Customer.io's Journeys and in-app pages describe outbound and transactional messaging; confirm how you handle replies today before comparing.
Can Gleap send in-app messages and push on mobile?
Yes. Gleap has web, iOS, Android, React Native and Flutter SDKs; in-app messages, push through Firebase Cloud Messaging and bug reporting depend on the SDK and configuration, so test each platform. Customer.io documents iOS, Android, React Native, Expo and Flutter SDKs for push and in-app messages. See push notifications.
Can we check security and data hosting before switching?
Yes. Review the Gleap Trust Center for certifications, data handling and subprocessors, then compare with the SOC 2, US and EU data centers and HIPAA options listed on Customer.io's pricing page. Bring residency and retention requirements to the pilot.
How does this connect to self-driving development?
Messages create replies, and replies carry the questions, bugs and requests that start product work. Gleap connects that context to investigation, planning and reviewed code, with your team deciding what ships. Explore self-driving development.
Send the message. Keep the conversation.
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on G2