Is Loops cheaper than Customer.io?

At the entry price, yes: Loops' first paid band is $49/month billed monthly, Customer.io's Essentials is $100/month billed monthly. But Loops prices by subscribed-contact count on a slider, so it climbs as your list grows; Customer.io's Essentials price is fixed for its included profile count, with overages billed separately. Which one actually costs less depends on your contact volume and send frequency, not just the entry number.

Does either offer a free plan?

Only Loops does, and it's permanent: 1,000 subscribed contacts, 4,000 sends every rolling 30 days, every feature included. Customer.io has no free plan at all, only a 14-day trial capped at 5,000 messages across channels.

Which is better for SMS or push notifications?

Customer.io. It supports SMS, push, and in-app messaging directly on the entry Essentials plan, alongside email. Loops is built around email and transactional email; it doesn't publish SMS or push channels on its pricing page.

Do Loops or Customer.io offer a money-back guarantee?

Neither does. Loops' terms of service state payments are non-refundable, and Customer.io's terms say the same. Canceling stops future billing on both, but neither refunds a period you've already paid for.

Which tool is more self-serve at scale?

Loops. Every band of its contact-based pricing, all the way up to the 1.5m-contact ceiling, checks out without talking to sales. Customer.io only self-serves at Essentials; Premium requires a demo call and Enterprise has no published starting price at all.

Do I need a credit card to try either tool?

Not for Loops' free plan, which is explicit about not requiring one. Customer.io doesn't state a card requirement on its pricing page, so that's unverified rather than confirmed either way.

Which tool has unlimited seats?

Both do, on every plan. Loops doesn't charge for team seats on Free or its paid plan, and Customer.io lists unlimited seats on Essentials, Premium, and Enterprise alike.

Loops vs Customer.io: simple pricing or sales-gated scale?

Email marketing and CRM platforms · Verified 30 Sep 2026 · By Joonas Rotko

Loops

Desk research

From Growing Audience Plan, billed monthly

$49/mo

Customer.io

Desk research

From Essentials, billed monthly

$100/mo

Quick answer

For a SaaS team that wants one predictable price, Loops is the simpler buy: one scaling plan, starting at $49/month billed monthly for the first paid band, with every feature (API, automation) included even on its free plan. Customer.io's Essentials plan, $100/month billed monthly, self-serves too, but growing past it means a sales call and a negotiated price. Both bill monthly and neither refunds a payment. Prices verified 2026-09-30.

Across the three setups below: Loops in 3 of 3 scenarios.

Which one fits you?

Solo marketer or small business, a list just past the free tier
Loops
My pick
$0/mo billed monthly
At this list size Loops' free plan covers it at $0/month billed monthly, while Customer.io's cheapest self-serve tier, Essentials, is $100/month billed monthly regardless of how small your list is under its profile cap.
Why this pick, and when to skip it
Skip it if you need SMS, push, or in-app messaging from day one; Loops only does email and transactional email, so Customer.io is the pick if multi-channel matters more than price here.
See Loops plans
Growing list, sending regularly
Loops
My pick
$49/mo billed monthly
Loops' first paid band covers this list size at $49/month billed monthly, still cheaper than Customer.io's flat Essentials rate of $100/month billed monthly for the same profile count.
Why this pick, and when to skip it
Skip it if multi-channel messaging outweighs the price gap; Customer.io bundles SMS, push, and WhatsApp into that same Essentials price, Loops does not.
See Loops plans
Small team managing one list together
Loops
My pick
$0/mo billed monthly
Both tools give every seat for free, so this comes down to list size again: Loops' free plan still covers this list at $0/month billed monthly, versus Customer.io's Essentials at $100/month billed monthly for the same size.
Why this pick, and when to skip it
Skip it if your team already needs multi-channel messaging or deeper data integrations; Customer.io still wins there regardless of the price gap.
See Loops plans

Neither fits? See the alternatives, or take the 2-minute recommendation.

How are Loops and Customer.io really different?

Pricing structure
Loops
One plan, scales by contacts: $49/month billed monthly at the 5,000-contact band, no named tiers
Customer.io
Essentials at $100/month billed monthly for 30,000 profiles, then Premium and Enterprise
Loops has one price ladder to reason about; Customer.io's ladder stops being public past the entry tier.
Self-serve ceiling
Loops
Every slider band checks out without a sales call, right up to the Contact us threshold above 1.5m contacts
Customer.io
Self-serve stops at Essentials. Premium starts at $1,000/month billed annually but needs a demo call, and Enterprise publishes no floor at all
Outgrowing Customer.io's entry tier means a negotiated price, not a checkout page.
Free plan vs trial
Loops
A permanent free plan: 1,000 subscribed contacts, 4,000 sends in any rolling 30 days, every feature included
Customer.io
A 14-day trial capped at 5,000 messages across channels, then no free plan at all
You can stay on Loops indefinitely for free; Customer.io's trial runs out.
Feature gating by plan
Loops
API and automation ship on the free plan, not held back for the paid one
Customer.io
Unlimited seats and API calls from Essentials up, but deeper data integrations wait for Premium
Loops never gates core functionality behind a plan; Customer.io still reserves some integrations for its higher tier.
Billing basis
Loops
Monthly only, no annual toggle on the pricing page
Customer.io
Essentials is monthly; the only published Premium figure, $1,000/month billed annually, is an annual rate with no monthly equivalent shown
Neither gives you a clean monthly-vs-annual discount to compare; Loops has no annual option at all.

What will Loops or Customer.io cost for your setup?

The cheapest plan that covers each setup, add-ons included. Prices exclude VAT.

Solo marketer or small business, a list just past the free tier

500 subscribers · mailed 3 times a month (for tools priced by emails sent) · 1 user

MonthlyYearly, per month

Loops

My pick

Monthly only

Free (Early Stage Plan)

Above 1,000 subscribers: Growing Audience Plan (+$49/mo, billed monthly).

Customer.io

$100

Monthly only

Essentials

Above 30,000 subscribers: nothing published fits.

See Loops plans

Usage, limits and billing

Loops

Uses 500 of 1,000 subscribers.
On monthly billing: $0 a year.

Customer.io

Uses 500 of 30,000 subscribers.
On monthly billing: $1,200 a year.

Growing list, sending regularly

5,000 subscribers · mailed 3 times a month (for tools priced by emails sent) · 1 user

MonthlyYearly, per month

Loops

My pick

$49

Monthly only

Growing Audience Plan

Above 1,500,000 subscribers: nothing published fits.

Customer.io

$100

Monthly only

Essentials

Above 30,000 subscribers: nothing published fits.

See Loops plans

Usage, limits and billing

Loops

Uses 5,000 of 1,500,000 subscribers.
On monthly billing: $588 a year.

Customer.io

Uses 5,000 of 30,000 subscribers.
On monthly billing: $1,200 a year.

Small team managing one list together

1,000 subscribers · mailed 3 times a month (for tools priced by emails sent) · 3 users

MonthlyYearly, per month

Loops

My pick

Monthly only

Free (Early Stage Plan)

Above 1,000 subscribers: Growing Audience Plan (+$49/mo, billed monthly).

Customer.io

$100

Monthly only

Essentials

Above 30,000 subscribers: nothing published fits.

See Loops plans

Usage, limits and billing

Loops

Uses 1,000 of 1,000 subscribers.
On monthly billing: $0 a year.

Customer.io

Uses 1,000 of 30,000 subscribers.
On monthly billing: $1,200 a year.

How I calculated this

For each tool I price every current plan plus the add-ons a setup needs, from the vendor's published prices only, and take the cheapest. Monthly and annual billing are priced separately. When a limit or price isn't published, the tool shows as not fitting instead of a guess.

Solo marketer or small business, a list just past the free tier: A list of about 500 contacts, just past the free tiers most vendors offer. One login. Tools priced by emails sent are costed at three mailings per subscriber a month.Loops, annual billing: Not sold on annual billing. Price limit isn't published.Customer.io, annual billing: Not sold on annual billing. Price limit isn't published.
Growing list, sending regularly: A list of 5,000 contacts, sending regularly. One login. Tools priced by emails sent are costed at three mailings per subscriber a month.Loops, annual billing: Not sold on annual billing. Price limit isn't published.Customer.io, annual billing: Not sold on annual billing. Price limit isn't published.
Small team managing one list together: Three people logging in to the same 1,000-contact list. Seats, not list size, are the deciding limit. Tools priced by emails sent are costed at three mailings per subscriber a month.Loops, annual billing: Not sold on annual billing. Price limit isn't published.Customer.io, annual billing: Not sold on annual billing. Price limit isn't published.

Loops vs Customer.io side by side

I compare email/CRM platforms on: Real cost per list size, both billing bases; Free-tier contact ceiling before you must pay anything; Team seats included, and the seat price past that; List segmentation depth; Automation workflow depth and any step/action limits; Deliverability and sending limits (emails per month, per day, or per rolling window); CRM and ecommerce integration depth; What happens past your plan's contact ceiling (overage pricing vs a forced upgrade).

Loops and Customer.io compared on the main buying criteria
Criterion	Loops	Customer.io
Entry price and what it includes	$49/month billed monthly for the first paid band (5,000 contacts), unlimited sends, every feature	$100/month billed monthly for 30,000 profiles, unlimited seats and API calls, workflow builder included
Self-serve vs sales-gated at scale	Every slider band self-serves, right up to the top before Custom pricing	Only Essentials self-serves; Premium and Enterprise both need a sales conversation
Free plan or trial	Permanent free plan, 1,000 contacts, no card required to start	14-day trial, no permanent free plan
Refund policy	Non-refundable per Loops' terms of service; no money-back guarantee of any kind	Non-refundable per Customer.io's terms of service; no money-back guarantee of any kind
Channels supported	Email and transactional email, built into the product itself	Email plus SMS, push, in-app messaging, and native WhatsApp, all on the entry plan

All details, including automation and AI workflows

All compared details for Loops and Customer.io
Criterion	Loops	Customer.io
API access	Included on the free plan, no separate charge to unlock it	Unlimited API calls from Essentials up, on every tier
Seats	Unlimited, no per-seat charge on any plan	Unlimited, no per-seat charge on any plan
Full price ladder	Free (1,000 contacts), then scales with contact count: $49/month billed monthly at 5,000, climbing with the slider up to 1.5m contacts, then Contact us	Essentials $100/month billed monthly (5,000 profiles), Premium starting at $1,000/month billed annually (sales-gated), Enterprise (talk to sales, no published floor)
Overage pricing	Not published on the pricing page beyond the slider bands themselves	$0.01/month per extra profile, $0.12/month per 1,000 extra emails, both on Essentials
Zapier and Segment integrations	Both listed with no plan restriction in the integrations docs	Both documented, but the pricing page only splits "Basic" vs "Basic & Premium" data integrations without naming which tier each one needs
Workspaces	Not a concept Loops' pricing page uses	2 on Essentials, unlimited on Premium and Enterprise
White label	Paid plans drop the "Powered by Loops" email footer badge; that's a branding removal, not a documented white-label or reseller program	Not confirmed for any tier
Trial card requirement	No card required for the free plan	Not stated on Customer.io's pricing page; third-party sources say no card, but that isn't a first-party claim
Support	Not confirmed	Not confirmed

Who should pick Loops, and who should pick Customer.io?

Loops

Desk research

Best for solo marketers and small businesses
Best for growing lists sending regularly
Best for small teams sharing one account

Loops skips named tiers and prices by subscribed contacts on one scaling plan. Free caps you at 1,000 subscribed contacts and 4,000 sends in any rolling 30 days, then the paid plan starts at $49/month billed monthly for the first 5,000-contact band with unlimited sends and the branding footer removed. Every feature, including the API and workflow automation, ships on both tiers, so you're paying for audience size, not functionality.

Best for: SaaS and startup teams who want transactional and marketing email from one tool, with API access from day one.

Strengths

The API and every feature ship on the free plan too, nothing is held back for a paid tier.
Team seats cost nothing extra on any plan, so the whole team can have a login.
Transactional email is built in, so there's no separate ESP or sending service to wire up.

Limits

No annual billing option on the pricing page, so there's no discount for paying upfront.
The free plan's transactional sends still count against its 4,000-send cap and can't reach contacts outside your subscribed list.
Cancellation doesn't refund the current billing period. Loops' terms state payments are non-refundable, and there's no money-back guarantee at all.

Skip it if you want annual billing or a refund window; Loops bills monthly only and states plainly that payments are non-refundable.

Loops review Loops pricing Loops alternatives

Customer.io

Desk research

Customer.io only publishes one real number: $100/month billed monthly for Essentials, capped at 30,000 profiles. Everything past that is a quote, with Premium starting at $1,000/month billed annually and Enterprise not even showing a floor.

Best for: A team that has outgrown a basic email tool and needs cross-channel journeys (email, SMS, push, WhatsApp) with unlimited seats on the entry plan.

Strengths

Unlimited seats and unlimited API calls on every tier, including Essentials.
SMS, push, WhatsApp and webhooks all ship on the entry plan, not gated to a higher tier.
A 14-day trial that includes every channel, not a stripped-down preview.

Limits

No money-back guarantee. The terms of service call fees non-refundable outside of legal requirements.
Premium has no self-serve checkout, only a demo call, and its $1,000/month billed annually figure is a starting point, not a fixed price.
Enterprise publishes no price at all, just a sales conversation.

Skip it if you want a fixed monthly bill past the entry tier; Premium and Enterprise both require a sales call and a negotiated price.

Customer.io review Customer.io pricing Customer.io alternatives

My pick: Loops in 3 of 3 scenarios.

See Loops plans See Customer.io plans

Neither Loops nor Customer.io? Try these

Klaviyo
From $20/mo billed monthly
Pick it if ecommerce and SMS marketing sit at the center of your lifecycle strategy rather than SaaS product and transactional email.
Klaviyo review Klaviyo alternatives
postmark
Pick it if you mainly need reliable transactional email (password resets, receipts, notifications) and don't need a marketing/lifecycle layer on top.
Postmark review Postmark alternatives
resend
Pick it if you're a developer-first team that wants a transactional email API built around modern frameworks, without Loops' or Customer.io's marketing-campaign tooling.
Resend review Resend alternatives

Switching between Loops and Customer.io

Neither Loops' nor Customer.io's pricing pages, docs, or terms mention a migration tool or import assistant for moving from the other, so I'm not going to invent one. Plan to rebuild your automations, segments, and templates by hand either direction. Loops has no time-limited trial to schedule around, since its free plan is permanent; if you're evaluating Customer.io as the destination, its 14-day trial and 5,000-message cap mean testing your real automations before you commit to Essentials is tight.

What would change my pick?

Customer.io publishing a self-serve price for Premium (instead of "starting at" plus a demo call) would remove the biggest reason to prefer Loops on predictability.
Loops adding an annual billing option, or a named enterprise tier with public pricing, would close the simplicity gap in the other direction.
A price change on either side. The picks recalculate on their own.

Loops vs Customer.io: questions people ask

Is Loops cheaper than Customer.io?: At the entry price, yes: Loops' first paid band is $49/month billed monthly, Customer.io's Essentials is $100/month billed monthly. But Loops prices by subscribed-contact count on a slider, so it climbs as your list grows; Customer.io's Essentials price is fixed for its included profile count, with overages billed separately. Which one actually costs less depends on your contact volume and send frequency, not just the entry number.
Does either offer a free plan?: Only Loops does, and it's permanent: 1,000 subscribed contacts, 4,000 sends every rolling 30 days, every feature included. Customer.io has no free plan at all, only a 14-day trial capped at 5,000 messages across channels.
Which is better for SMS or push notifications?: Customer.io. It supports SMS, push, and in-app messaging directly on the entry Essentials plan, alongside email. Loops is built around email and transactional email; it doesn't publish SMS or push channels on its pricing page.
Do Loops or Customer.io offer a money-back guarantee?: Neither does. Loops' terms of service state payments are non-refundable, and Customer.io's terms say the same. Canceling stops future billing on both, but neither refunds a period you've already paid for.
Which tool is more self-serve at scale?: Loops. Every band of its contact-based pricing, all the way up to the 1.5m-contact ceiling, checks out without talking to sales. Customer.io only self-serves at Essentials; Premium requires a demo call and Enterprise has no published starting price at all.
Do I need a credit card to try either tool?: Not for Loops' free plan, which is explicit about not requiring one. Customer.io doesn't state a card requirement on its pricing page, so that's unverified rather than confirmed either way.
Which tool has unlimited seats?: Both do, on every plan. Loops doesn't charge for team seats on Free or its paid plan, and Customer.io lists unlimited seats on Essentials, Premium, and Enterprise alike.

How I verified this

Every price and limit here comes from the vendors' own pages, last checked 30 Sep 2026. Loops: desk research. Customer.io: desk research.

Sources and changelog

15 facts from 4 source pages, oldest checked 30 Sep 2026.

Loops plans and pricing (checked 30 Sep 2026)
Loops terms of service (checked 30 Sep 2026)
Customer.io plans and pricing (checked 30 Sep 2026)
Customer.io plan features docs (checked 30 Sep 2026)
Customer.io terms of service (checked 30 Sep 2026)

30 Sep 2026: Added scenario picks now that the "crm-email-platforms" category has landed. Loops wins all 3 scenarios on price (free plan or its cheapest paid band both undercut Customer.io's flat Essentials rate at every list size tested), with the skipIf on each noting that Customer.io's multi-channel messaging is the real reason to pick it anyway.

Spot something out of date?Vendors and readers, send me the correct fact.

Software sites change almost every week, and I want every claim on this page to be factually correct. If you are a vendor or a reader, send me the correct fact and a link to the official page. I will check it and update the page. The opinions and rankings stay mine.

Loops vs Customer.io: simple pricing or sales-gated scale?

Quick answer

Which one fits you?

How are Loops and Customer.io really different?

Pricing structure

Self-serve ceiling

Free plan vs trial

Feature gating by plan

Billing basis

What will Loops or Customer.io cost for your setup?

Solo marketer or small business, a list just past the free tier

Growing list, sending regularly

Small team managing one list together

Loops vs Customer.io side by side

Who should pick Loops, and who should pick Customer.io?

Loops

Customer.io

Neither Loops nor Customer.io? Try these

Switching between Loops and Customer.io

What would change my pick?

Loops vs Customer.io: questions people ask

Is Loops cheaper than Customer.io?

Does either offer a free plan?

Which is better for SMS or push notifications?

Do Loops or Customer.io offer a money-back guarantee?

Which tool is more self-serve at scale?

Do I need a credit card to try either tool?

Which tool has unlimited seats?

How I verified this

Compare Loops or Customer.io with another tool

Loops vs …

Customer.io vs …

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