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What is Stella?

Stella is an innovative platform tailored for marketing measurement, offering marketers scientifically sound insights into which advertisements, campaigns, and media channels drive revenue growth. It includes three key features: Incrementality Testing, Always-On Incrementality, and Media Mix Modeling (MMM). With Incrementality Testing, Stella performs geo-holdout studies, commonly referred to as inverse holdouts, to determine performance variations between test and control regions, thereby isolating the direct effects of advertisements instead of relying solely on attribution techniques. This tool streamlines intricate statistical concepts like causal inference and confidence intervals, enabling users to grasp potential outcomes independent of any specific campaign, and revealing the true "lift" generated by each ad. Additionally, the Media Mix Modeling component utilizes a distinctive Bayesian method to analyze past marketing budgets alongside external factors, such as seasonality and promotional events, to accurately evaluate each channel's contribution to total sales. By employing these sophisticated strategies, Stella not only enhances the decision-making process for marketers but also ensures that the data they rely on is both precise and actionable. Ultimately, the platform stands as a vital resource for marketers seeking to optimize their advertising efforts effectively.

What is Geysera?

Geysera is a data-driven ecommerce retention marketing platform that helps brands recover lost revenue by optimizing email flows for customer re-engagement. It identifies returning anonymous visitors and matches them to existing customer profiles within popular email service providers like Klaviyo, Mailchimp, and SendGrid. The platform focuses on four high-impact flows: cart abandonment, checkout abandonment, browse abandonment, and winback campaigns. Geysera provides a white-glove service, managing everything from setup to continuous optimization, so teams can focus on core business activities. Its AI-powered system generates personalized, brand-consistent email content that increases engagement and conversions. Using advanced methodologies such as RFM segmentation, behavioral analysis, and cohort modeling, it identifies high-value opportunities. Geysera measures performance through randomized control trials and holdout groups, ensuring accurate calculation of incremental revenue. This approach eliminates inflated attribution and provides clear ROI visibility. Businesses can set guardrails for discounts, free shipping, and product exclusions to maintain control over promotions. The platform integrates seamlessly with existing systems without requiring migration or additional tools. Its pay-for-performance pricing ensures that brands only pay for measurable results. Geysera enables ecommerce businesses to increase retention, maximize customer lifetime value, and unlock revenue from existing traffic.

Media

Media

Integrations Supported

Shopify
Amazon
BigCommerce
Google Cloud Platform
Klaviyo
Mailchimp
Meta AI
SendGrid
Snowflake
WooCommerce

Integrations Supported

Shopify
Amazon
BigCommerce
Google Cloud Platform
Klaviyo
Mailchimp
Meta AI
SendGrid
Snowflake
WooCommerce

API Availability

Has API

API Availability

Has API

Pricing Information

$2,000 per month
Free Trial Offered?
Free Version

Pricing Information

$199/month
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Stella

Company Location

United States

Company Website

www.stellaheystella.com

Company Facts

Organization Name

Geysera

Date Founded

2025

Company Location

United States

Company Website

www.geysera.com

Categories and Features

Categories and Features

eCommerce Marketing

AB Testing
Abandoned Cart Email
Analytics / ROI Tracking
Customer Data Profiles
Dynamic Content
Email Marketing
Email Personalization
Facebook Ads
Google Ads
Product Recommendations
Push Notifications
Retargeting
SMS Marketing
Search Marketing
Segmentation
Signup Forms & Popups
Social Marketing
Triggered Emails
Website Visitor Tracking

Email Marketing

A/B Testing
Artificial Intelligence
Auto-Responders
CAN SPAM Compliance
Customer Surveys
Drip Campaigns
Dynamic Content
Event Triggered Email
Image Library
Landing Pages/Web Forms
Mailing List Management
Mobile Optimized Emails
Reporting/Analytics
Subscriber Management
Template Management
WYSIWYG Email Editor

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Popular Alternatives

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