ZOE Review: US App, Testing Availability and Evidence

ZOE can be useful as a structured nutrition app, but US readers should not assume that buying ZOE Plus includes a gut test. Its current US FAQ describes testing as a separate product and says next-generation US testing is planned for a future launch. Older reviews of a combined test kit and membership can therefore mislead a new buyer ¹.

This review separates the app on sale now from the more intensive program studied in a clinical trial. It does not describe personal use, and it does not assume that UK purchase options apply in the United States.

What can you buy in the US?

ZOE's US FAQ lists ZOE Plus at $15.99 monthly or $99.99 yearly. It describes premium app features including food scores and educational content. The yearly option averages about $8.33 a month but requires an annual purchase; it is not a monthly payment at that rate. The same FAQ explicitly separates testing from Plus ¹.

That is the first buying check: do you want an app that helps with food choices, or do you specifically want a stool test? A paid app can have value without a test, but it should be evaluated on that basis. Our microbiome testing guide explains the questions that tests can and cannot answer.

What does ZOE's randomized trial show?

A 2024 trial randomized 347 adults to an 18-week personalized dietary program or standard dietary advice. The program combined food characteristics, post-meal responses, microbiome information and health history. It improved triglycerides relative to control; the other primary outcome, LDL cholesterol, did not differ significantly. Some secondary outcomes also improved ².

This is meaningful evidence for a particular program, not proof that every ZOE offering produces the same outcome. It also does not isolate the contribution of a stool test from the food advice, app engagement or wider support. The study includes company-affiliated investigators, which readers should consider alongside its randomized design.

If your main question is whether personalization necessarily beats ordinary dietary guidance, our personalized nutrition evidence review compares the study with another randomized trial. Different programs deserve separate judgments.

Is the membership worth paying for?

It may be if you already find the app useful and want a structured way to keep learning or compare foods. Try to identify which paid feature would change an everyday decision before committing to a year. A food score is most useful when it helps you build meals you can actually afford and enjoy.

It is less compelling if your main aim is to diagnose persistent digestive symptoms. A nutrition subscription should not be treated as a diagnostic service. Nor should you assume that more individualized scores necessarily make a plan easier to follow.

Compare the annual commitment with the monthly option using your likely length of use. The annual average is lower, but paying for unused months is not a saving. Review your app-store subscription settings and the current checkout terms rather than relying on an old price quoted by a review.

How does it compare with Viome?

Viome currently markets a stool-based RNA analysis and food recommendations. ZOE's US app and Viome's test are therefore different purchases. Our ZOE, Viome and GI-MAP comparison separates wellness testing from clinical testing; confirm current availability before making the comparison on price.

Our verdict

ZOE has real nutrition research behind its broader program. The key buying limitation is that the current US app is not the same package as the older testing-and-support program. Decide whether the app itself earns its fee, and wait for explicit US test availability and terms if a stool test is the main reason you are interested.