HUBBLE VS STRELLA

Hubble vs Strella: Which User Research Platform Is Right for You?

Compare Hubble and Strella across AI-moderated interviews, usability testing, participant recruitment, analysis, pricing, and more to find the right platform for your research team.

Hubble vs Strella at a glance

Dimension

Hubble

Strella

Best suited for

Product teams running continuous research with their own users and external panels

Product, research and insights teams running fast, voice-based AI interviews

AI-moderated research

Full AI-moderated interviews with discussion guides and follow-ups

Full voice-to-voice AI-moderated interviews

In-product research

In-product surveys via web SDK with event and attribute targeting

Not offered

Participant recruitment

Respondent, User Interviews, or your own users via participant CRM

Partner panels including Respondent, or your own participants

AI / MCP workflows

MCP server to plan, launch, recruit and analyze from AI assistants

AI Connector to create studies and query research

Pricing model

Seat-based or study-based

Annual plans quoted through sales; recruitment and incentives paid from prepaid credits

WHY TEAMS SWITCH

Why Teams Choose Hubble over Strella

Strella focuses on voice-based AI interviews sold through quote-based annual plans. Hubble covers the rest of product research too: unmoderated usability tests, prototype and live site testing, in-product surveys and a participant CRM, so you don't need a second tool for everything that isn't an interview.

MCP

Run research from your AI assistant

Plan research, publish studies, recruit participants and synthesize findings from Claude, ChatGPT or Cursor, with approval on every change.

Hubble MCP launching a study with approval

IN-PRODUCT

In-product surveys

Ask targeted questions inside your product with SDKs for web. Target by event, attribute or URL, and control frequency and delay.

AI MODERATION

Interviews and usability tests in one study

Strella is built around interviews. In Hubble, the AI moderator runs the interview and then watches the participant's screen during live website tasks, with heatmaps, click paths and success rates in the same study.

“We use Hubble for our AI-moderated studies and Figma prototype usability tests. The large pool of testers has been really helpful for our usability testing projects, and we get great support from their customer success team.”

Eric Sagalyn

Head of Design & Research, Schneider Electric

Hubble customer

G2 index

Hubble

Strella

Usability?

8.9

—

Implementation?

8.9

—

Relationship?

9.2

—

Results?

8.7

—

Source: G2 Fall 2026 Usability, Implementation, Relationship and Results Index reports for User Research. Scores out of 10. Index scores for Strella were not available.

FEATURE COMPARISON

Hubble vs Strella: Key Features

How the two platforms compare across research methods, participants, AI and plans.

Capability

Strella

RESEARCH METHODS

Unmoderated usability tests

Moderated interviews

Figma prototype testing

Heatmaps, click paths, success rates

Heatmaps, paths and misclick rates

Live website testing

Any URL, no SDK

Card sorting & tree testing

Open, closed and hybrid

A/B testing

Chrome extension for live site tests

Detailed analytics, click data and AI-moderated follow-ups

IN-PRODUCT RESEARCH

In-product surveys

Web SDK

Event & attribute targeting

Segment integration

Frequency, delay & URL rules

PARTICIPANTS

External panel

Respondent and User Interviews

Partner panels including Respondent

Participant CRM

Scheduling, screeners & incentives

AI CAPABILITIES

AI-moderated interviews

Full discussion guide and follow-up questions

Yes

Voice-to-voice interviews in 40+ languages

Visual intelligence for AI-Moderator

MCP server

Plan, launch, recruit and analyze

Yes

Create studies, query research and build reports

Sentiment analysis of responses

AI transcription and clean-up

AI synthesis & tagging

AI-powered interview analysis

AI study and question builder

Study-wide recording

One continuous video across tasks including AI-moderated interviews

—

Not publicly documented

AI-Powered Themes

Customizable reports

PLANS & SECURITY

Pricing model

Seat-based or study-based

Usage-based prepaid credits; quote-based

Participant recruitment

Hubble Credits used for all panel providers integrated with Hubble

Recruitment through partner panels

SSO, RBAC, SOC 2 Type II

Note: Comparative analysis based on publicly available information as of October 2026.

SWITCHING FROM STRELLA

Switch from Strella without rebuilding your research program

We'll help migrate your recurring study templates, participant lists, and research workflows so your team can start running studies in Hubble quickly.

1

Talk to our research ops team

Walk us through your current Strella setup and the studies you run most. We'll map them to Hubble.

2

Bring your templates and participants

Recreate your go-to study templates and import participant lists into the CRM.

3

Launch your first study

Recruit from Respondent or your own users, and start collecting insights right away.

Frequently asked questions

What is the biggest difference between Hubble and Strella?

Strella is built around fast, voice-based AI-moderated interviews. Hubble combines AI-moderated interviews with unmoderated usability testing, live moderated interviews, in-product surveys and a participant CRM, so product teams can run every type of study in one platform.

Is Hubble a good alternative to Strella?

Yes, especially for product and UX teams. Hubble runs full AI-moderated interviews like Strella, and adds classic unmoderated usability tests, tree testing, in-product surveys and a fuller participant CRM.

Does Strella support moderated interviews and usability testing?

Strella added human-moderated studies in October 2026 and runs usability tasks inside its AI-moderated sessions. Hubble runs live moderated interviews, unmoderated usability tests, tree tests and A/B tests alongside AI-moderated interviews.

How does pricing compare?

Hubble lets you choose seat-based or study-based pricing, depending on how your team runs research. Strella uses usage-based prepaid credits with unlimited users, and pricing isn't published.

Does Hubble have its own participant panel?

Hubble connects directly to User Interviews and Respondent, so you can recruit consumer and B2B participants without leaving the platform. You can also recruit from your own users through the participant CRM or in-product surveys.

What can I do with Hubble's MCP?

Connect Claude, ChatGPT, Cursor or another MCP client to plan studies, publish them, recruit participants and analyze results, with you approving each change along the way.

How long does it take to switch from Strella?

Most teams launch their first study within days. We help you set up your workspace, recreate key templates and import your participant lists.

See why research teams choose Hubble over Strella.

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