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What is Sensorpro?

This platform stands out by offering completely free access for up to 500 contacts, with no restrictions on features or support, and includes a user-friendly Drag & Drop email designer that boasts over 70 customizable design blocks. Each user account is provisioned with ready-made email templates, 1,000 email credits, and 10 SMS credits, which are ideal for effective communication strategies. Unlike rivals such as Klaviyo, Mailchimp, and Sendgrid, our sending servers are located within the EU, safeguarding your data within European jurisdiction. You also have the ability to add a "Do Not Track" option in your sign-up forms, ensuring user privacy is prioritized. By promoting Sensorpro, you can generate lifetime revenue, as the platform is equipped with all the essential tools needed for managing an agency account effectively. Whether catering to small businesses or overseeing high email volumes, our independent infrastructure can scale up to handle as many as 1 million emails each day without dependence on third-party services like Amazon or Sendgrid, offering both reliability and adaptability for all users. In addition, our unwavering commitment to top-notch customer support guarantees that users receive assistance throughout their entire journey. This dedication to service ensures that every interaction with the platform is a positive and productive one.

What is Coldletter?

Coldletter is a product email platform that combines visual email design, template management, automation, and developer-friendly delivery workflows in one workspace. The platform is built to sit on top of existing sending providers, including SendGrid, Postmark, Amazon SES, Mailgun, Resend, and SparkPost. This allows teams to improve how emails are created and managed while continuing to rely on trusted providers for actual delivery. Coldletter’s editor lets users design emails like documents, using drag-and-drop blocks, reusable partials, typed variables, and real-time previews. Templates are built to be responsive, accessible, and dark-mode-safe, reducing the need for manual table-based HTML or MJML workarounds. Developers can send any template with one API call while Coldletter merges customer data, renders the email, chooses the configured route, and handles delivery safeguards. The platform also includes automation journeys with triggers, delays, branching logic, A/B testing, and scheduled sends. Teams can manage template versions like code, review diffs, roll back changes, run test sends, and require approvals before updates reach production. Localization features allow companies to create translated template variants that resolve automatically at send time. Unified analytics help teams track opens, clicks, bounces, and deliverability across multiple providers. Coldletter helps product, lifecycle, design, and engineering teams create better emails faster while keeping delivery reliable and workflows organized.

Media

Media

No images available

Integrations Supported

BigCommerce
KonnectzIT
Shopify
Ultra Commerce

Integrations Supported

Amazon SES
Postmark
SendGrid

API Availability

API Availability

Pricing Information

Pricing not provided
Free Version

Pricing Information

$0
Free Version

Supported Platforms

SaaS
Windows

Supported Platforms

SaaS

Customer Service / Support

Standard Support
Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

Sensorpro

Date Founded

2001

Company Location

Ireland

Company Website

sensorpro.eu

Company Facts

Organization Name

Optosoftware inc.

Date Founded

2025

Company Location

Canada

Company Website

coldletter.com

Categories and Features

Email Marketing

Not specified

SMS Survey

Not specified

Survey

Data Analysis Tools
Email Marketing
Mobile Survey
Question Branching
Skip Logic
Supports Audio / Images / Video

Categories and Features

Email Marketing

Not specified

Email Template Design

Not specified

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