Loops
Email platform for SaaS companies that sends marketing, lifecycle and transactional email from one product.
Loops is an email platform for software companies that covers marketing campaigns, lifecycle workflows and transactional email. Teams sync contacts and events to Loops through its API or integrations, design emails with shared themes, and send to segments or individual users. A free plan is available, and paid plans scale with subscribed contacts.
Best for SaaS teams that want marketing, onboarding and transactional email tied to product data in one tool with a developer-friendly API.
- Listed in
- Platforms
- Web, API
- Pricing model
- Freemium
- Free plan
- Yes
- API
- Yes
- Made by
- Astrodon Corporation
- Added
Last verified: . Information taken from loops.so.
What is Loops?
Loops is an email sending platform built for software companies, combining marketing campaigns, automated lifecycle workflows and transactional messages in one tool. Campaigns go once to a segment of contacts; workflows are triggered by events or contact changes and can branch, wait and exit, covering onboarding, trial conversion or win-back series; transactional emails such as password resets and receipts are sent to a single recipient through an API call with data variables. Emails are designed in an editor with shared themes and reusable components, so a change to colours or type carries across every template. Contacts and events arrive through the API, SDKs, CSV upload or integrations including Stripe, Supabase, Segment, Zapier and Webflow. AI agents such as ChatGPT, Claude and Codex can be connected to set up emails and workflows through the API. Deliverability safeguards include send pacing, manual review and automatic suppression of bounces. Astrodon Corporation operates Loops.
Key Features
Campaigns
Sends a one-off email, such as a newsletter or launch announcement, to a filtered audience segment at a scheduled time.
Workflows
Automates sequences that start from a trigger and use timers and branches, for example an onboarding series.
Transactional email
Delivers individual messages like receipts through an API endpoint, filling in variables from the request payload.
Themes and components
Stores brand colours, fonts and spacing centrally so all emails inherit the same styling.
Segments and goals
Filters contacts by properties that update with product data and reports which emails lead to conversions.
Sender reputation safeguards
Paces sends, retries failures and suppresses hard bounces and spam complaints automatically.
Screenshots
Use Cases
- User onboarding
- Welcome new sign-ups and nudge those who have not finished setup.
- Product launch announcements
- Schedule a campaign to active customers when a release ships.
- Receipts and password resets
- Trigger account emails from application code.
- Win-back sequences
- Email users after a subscription is cancelled, following a waiting period.
- Monthly product newsletter
- Send regular updates built from a saved template.
Things to know
- Free plan caps
- Free accounts are limited to 4,000 total emails per rolling 30 days, counting marketing and transactional sends together, and include Loops branding.
- Pricing counts subscribed contacts
- Unsubscribed contacts do not count toward the paid tier, and any number of contacts can be uploaded.
- Rate limits
- Paid teams have a ceiling of 1,000 emails each second and free accounts 10; excess messages are queued.
FAQs
What is Loops?
Loops is an email platform for SaaS companies that handles marketing, lifecycle and transactional email in a single product.
What is Loops used for?
Loops is used to send newsletters and announcements, automate onboarding and retention sequences, and deliver transactional messages from an application.
Is Loops free?
Yes. Loops has a free plan with unlimited contacts and a cap of 4,000 emails per rolling 30-day period, sent to your 1,000 most recent contacts; free emails carry a small Loops footer.
How much does Loops cost?
Loops prices its paid plans by the number of subscribed contacts, with no separate charge for sends or team seats. See the official pricing page for current prices.
Does Loops have an API?
Yes. Loops provides an API for contacts, events and transactional sending, with SDKs for environments such as Node, Ruby and PHP.
Does Loops charge for team seats?
No. Loops states that teammates can be invited without a per-seat fee.
Can AI agents work with Loops?
Yes. Loops offers prompts and agent connections so tools like ChatGPT, Claude and Codex can create emails and workflows through its API.
Who it's for
- SaaS teams
- Startups
- Product marketers
- Developers
- Founders
Used in these workflows
- How a newsletter issue gets made, and where AI tools helpStage 5: Sending platform
- Launching a product with AI: what to use from positioning to feedbackStage 6: Email announcement
Each guide lists the stages of one job and the tools that help at each stage. All guides
Comments
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Listed in the same category as Loops. A starting price appears only where we checked it on the maker’s pricing page; a dash means not checked or not published. All Email tools