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Gravity Scores

Gravity Score Properties

A Gravity Score study is made up of multiple components:

  • Audience
  • Visuals
  • Directives
  • Questionnaire
  • Data Collection & Analysis


The most relevant user reactions come from an audience that is likely to interact with your company’s products. Helio provides over 50 ready-made audiences that you can tap into and get feedback in a matter of minutes. Check out our Audiences page to see what professional and consumer participants you can test with.


Focus your Gravity Score survey on a single page with multiple actions or a clear flow of screens to reach a goal. A homepage or landing page with multiple interactive features works well, or a sequence of screens, such as an onboarding flow or purchasing process. Your visuals will be uploaded as a jpg or png to Helio, and then you start providing directives for your participants.

This test template makes it easy to get started on using visuals in your Gravity Score survey.

Rapid Concept Testing

Put your novel ideas to the test, or use participant feedback to help spark your creativity for concept creation.

Use this template for:

  • Product Development
  • See which early screen types resonate with your audience
  • Build with confidence based on direct customer feedback
Use Template


Use Helio’s click test questions to give participants directives on your visual designs. The click test allows you to see where participants will click first on a page to complete an action you’ve outlined. 

The data output will be a click-map showing each individual click on the page. From there, you can click-and-drag over specific clusters to highlight the percentages in a certain area. 

For the purposes of a Helio Gravity Score survey, these directives are simply used to provide participants context of how your product works and what they can do with it.


Follow up your click directives with 10 questions that gauge participants’ reactions to the usability of your designs. 

Each question is a likert scale that provides 5 answer choices on a scale from Strongly Disagree to Strongly Agree. The purpose is to present positive and negative statements about the experience to your participants and see which of those statements they agree with. These agree/disagree responses will form the foundation of your data set that produces a Helio Gravity Score.

Data Collection & Analysis

Once the reactions are collected from participants, the data is collected into the Helio Gravity Score spreadsheet. This is where the data is segmented and interrogated to produce a Helio Gravity Score. 

Each reaction on the questionnaire is given a score from 1-5 based on whether they are positive or negative. For example, strong positive reactions receive a 5 while strong negative reactions produce a 1. 

All reactions to a single question are then averaged. The sum of all 10 averages is multiplied by 2.5 (a SUS method standard) to create your Helio Gravity Score.

Your Helio Gravity Scores will likely fall within the range of 60 to 80 points. Scores are read with the same guiding principles as a SUS study

A score of 68 is considered average, while anything below indicates significant issues needing to be resolved in your web experience.