Make sense of your health.

Gradual puts your blood work next to your sleep, fitness and training. Every marker is explained in plain English and tracked across tests, so you can see what’s changing.

40+ markers, from any lab

Results from Quest, Labcorp, your GP or a clinic abroad all work, and so do the health records already in Apple Health. Each new test adds to your history.

Heart & lipids ApoB, Lp(a), LDL, HDL and triglycerides.

Metabolic Fasting glucose, HbA1c and insulin.

Hormones Testosterone, estradiol and cortisol.

Thyroid TSH and free T4.

Vitamins Vitamin D and B12, two of the most common deficiencies.

Inflammation hs-CRP and homocysteine.

Two ranges for every marker

A lab’s reference range covers 95% of the people in its reference group, so it describes what’s common. Gradual shows that range next to a tighter optimal range, with links to the studies behind it. A result can be “normal” and still be worth asking your doctor about.

40+ Biomarkers

Any lab Including Apple Health

Lab Results

Taylor · Sample panel

Sep 28, 2026

ApoB

104 mg/dL

LDL-C

118 mg/dL

HbA1c

5.2 %

hs-CRP

0.6 mg/L

Vitamin D

31 ng/mL

TSH

1.8 mIU/L

Optimal In range Out of range

ApoB, last three tests 121 → 112 → 104 mg/dL

How your health fits together

Trends across tests

Each marker gets a chart across every test you’ve added, so you can check whether the diet change or new supplement moved anything. You can also export a panel as an image to share.

ApoB marker screen in Gradual with a history chart across three tests

Gradual Age

A biological age estimate. It starts with PhenoAge, which is calculated from nine blood markers, then adds fitness, sleep and heart data from Apple Health.

Ask about your results PRO

Ask questions and get answers that take your vitals, training and habits into account. It’s there to help you understand your numbers. It doesn’t diagnose anything.

Gradual answering a question about an ApoB result

At-home fitness tests

Dead hang, push-ups, balance and a few others, scored against people your age and sex. Repeat them every few months and compare.

Physical Baseline screen with a radar chart and push-up and dead hang scores

Start with your last blood test

Download Gradual and add your most recent results to see where each marker stands. Your first lab analysis is free.