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BestCalorieApps
SD

Sienna Dvorak-Park, MA

Senior Tester

Designing consumer test protocols since 2019

About Sienna

Sienna Dvorak-Park is our Senior Tester. They are not a registered dietitian and they don’t pretend to be — Sienna’s expertise is methodology, not nutrition science. Their MA from Stanford was on how consumers actually read product reviews (spoiler: badly, until you redesign the page), and their pre-BestCalorieApps career was built around the unglamorous work of writing test protocols that produce repeatable, comparable, defensible numbers.

That is exactly the work BestCalorieApps needed at launch. Reuben can review an app brilliantly. Sienna’s job is to make sure that when Reuben reviews ten apps, all ten reviews can be compared.

What they do

Sienna owns the test protocol. That means deciding which reference meals we use, recruiting the panel of testers who do the blind logging, time-locking the testing windows, and writing the methodology page. They also lead our reproducibility checks — every accuracy number on the site has been logged by at least two independent testers using the same protocol on the same week.

Editorial focus

Sienna writes our methodology page, the “How We Test” sections that appear in every review, and the editorial-standards posts. They co-author comparisons with Reuben when the methodology is the most interesting part of the story. They do not write app reviews directly.

Conflicts of interest

Sienna holds no affiliate accounts and no equity in any company covered on BestCalorieApps. They use Cronometer for personal tracking (not currently in active testing) and disclose this on any review that touches Cronometer.

Recent work

Articles & rankings

App reviews

Head-to-heads