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Head-to-head buyer guide

InsideTracker Ultimate Plan vs TruDiagnostic TruAge COMPLETE Epigenetic Test

Specs, prices, editor verdict, and who should buy which — compared side-by-side.

By Ryan · Editor & Founder
Published May 3, 2026
InsideTracker
InsideTracker

Ultimate Plan

The OG of "blood test + AI advice" — InsideTracker was doing this 10 years before Function Health existed.

PRICE
$199–$589/test
View at InsideTracker
TruDiagnostic TruAge epigenetic age test kit
TruDiagnostic

TruAge COMPLETE Epigenetic Test

The biological-age epigenetic test the longevity crowd actually uses — and the only consumer-accessible kit running multiple validated clocks (DunedinPACE, Horvath, OMICmAge) in one panel.

PRICE
$229–$499/test
SCORE
8.6 / 10
View at TruDiagnostic
The verdict

These are close picks. Both score in the same range. The right call depends on buyer profile — read the per-buyer recommendations below.

Who should buy which

Pick the InsideTracker Ultimate Plan if

Buyers who want test results paired with explicit "do X" recommendations rather than raw lab data they have to interpret.

Skip if

You want maximum biomarker coverage at the lowest annual cost — Function Health wins on that math.

Pick the TruDiagnostic TruAge COMPLETE Epigenetic Test if

Longevity-focused buyers running serious anti-aging protocols who want validated pace-of-aging tracking, and biomarker-literate users adding epigenetic data to a broader monitoring stack.

Skip if

You want actionable health recommendations (Function Health or InsideTracker beat it on that), you won't commit to longitudinal retests (single-point readings are noisy), or you're shopping for vanity rather than research-grade data.

Go deeper

FULL REVIEW
Read the InsideTracker Ultimate Plan review →
FULL REVIEW
Read the TruDiagnostic TruAge COMPLETE Epigenetic Test review →