Adult-only · iPhone app in development

Verify the exact swim goggles you plan to buy.

ContourBayes is a brand-neutral iPhone app that uses guided iPhone camera measurement to compare one supported swim-goggle model with your facial structure before purchase—looking for lower-risk structural compatibility, not a fit guarantee.

Buying online or in store? Start with the exact model you are considering, before you pay for another pair that may not match your facial structure.

Adult-only iPhone app in development. Not available to use yet.

Before your next pair

Choose with a clearer picture.

Illustration of an adult swimmer considering a pair of goggles beside a pool.

01 · Before you buy

You like the goggles.
Will they suit you?

Buying again after leaks or pressure? Too few models to try nearby? Start with the model you’re considering.

Illustrative scene

Concept illustration of an adult using an iPhone facing her uncovered face, with goggles on the table.

02 · Planned measurement

Your face.
The model you’re considering.

Planned guided iPhone measurement for a supported swim-goggle model.

Planned measurement concept · not an App screenshot

Neutral blue structural head illustration with unbranded goggles; no measurement points or values.

03 · Illustrative output

Understand the match
before you buy.

A static structural compatibility result, with a clear explanation.

BUYLower risk structural compatibility
BORDERLINEModerate risk
NOT BUYElevated risk

Illustrative example — not a real user assessment.

Structural illustration

Adult-only iPhone app in development. Not available to use yet.

Static structural compatibility. No guarantee of comfort or a leak-free swim.

Notify me at launch

What this means today

Useful context, without a fit promise.

Founded by a swim-goggle product developer and designer with over a decade of industry experience. The idea began with family purchase uncertainty.

Any planned result is static structural guidance for one supported model before purchase. It cannot guarantee comfort, a seal, or no leaks; wearing, movement, water, and product condition still matter.

The app is not available to use yet, and this website cannot scan you.

Review the Privacy Policy, Terms of Use, Cookie Policy, and Disclaimer.

Before you decide

A few things to know.

Is the app available now?

No. ContourBayes is an adult-only iPhone app in development. It is not available to use yet, and no payment is collected today. Optional research is separate from launch updates.

Does ContourBayes guarantee fit or leak-free swimming?

No. Static structural guidance cannot guarantee comfort, a seal, or no leaks. Wearing position, movement, water, and product condition still matter.

Is ContourBayes independent from goggle brands?

Yes. ContourBayes is brand-neutral, does not sell goggles, and does not use affiliate links.

Learn why goggles fail selected guides
LeaksWhy Swim Goggles Leak at the NosePressureWhy Do Swim Goggles Hurt Around the Eyes?Buying onlineHow to Check Swim Goggle Fit Before Buying Online

View all fit guides →

Optional: help shape ContourBayes feedback does not affect launch updates or reading the guides

Optional research

Help shape ContourBayes before launch.

The questions below are optional feedback. Subscription and Learn Hub access remain separate.

Question 1 of 5

Would you pay $5.99 to check the exact goggle you're considering before buying it?

Your answer is optional. No payment today.