Zenject: protocol as practice

The path

A guided path to follow.

Optimization isn't a moment of willpower.
It's a path you walk, one day at a time.

Form

Set the protocol

Build it once, exactly: every compound, dose, reconstitution, schedule, and the sites you rotate.

Begin with intention, not guesswork.

Practice

Show up daily

Each day brings your doses to take and check off. The practice is simply returning to it.

Discipline, repeated, becomes ease.

Reflection

Reflect honestly

A daily check-in for how it lands — mood, energy, sleep — and notes you'll be glad to have later.

Awareness comes before adjustment.

Truth

Watch the truth emerge

Bloodwork and body composition, charted over time, until the pattern is clear.

Let the numbers, not the noise, guide you.

Set the protocol

Protocol with intention.

Lay out every compound, dose, reconstitution, schedule, and rotation site up front, so there's nothing left to figure out when it's time to act.

Multiple protocols, stacked and color-coded

Reconstitution solved for you: vial mg, BAC water, units

Per-compound timing, days, and titration steps

Show up daily

The practice is showing up.

Today is your checklist: every dose due, grouped by time, in the order you take them. No spreadsheets, no math at dose time.

Exact units to draw, calculated for you

Injection-site rotation, tracked automatically

Gentle reminders, scheduled on-device

Reflect honestly

Awareness is its own discipline.

A daily check-in for mood, energy, and sleep, plus the side effects worth flagging and a few honest words you'll be glad to have later.

Mood, energy, and sleep on a simple scale

Flag side effects the moment you notice them

Free-form reflections and progress photos

Watch the truth emerge

Clarity, one data point at a time.

Your bloodwork and body composition, charted over time against the protocols you're running. See what's actually working, week over week, not just how you feel.

Weight, body fat, and BMI from Apple Health

Lab markers trended with their reference ranges

Your protocol periods shaded behind the curve

Pricing

One app. Every feature.

No free tier, no locked features, no paywalls. Start your practice with a free trial, then choose the term that fits.

7-day free trial — then choose your term

Monthly

$6.99

per month, billed monthly

Cancel anytime Start free trial

6 Months

$34.99

$5.83/mo · billed every 6 months

Save 17% Start free trial

Best value

12 Months

$49.99

$4.17/mo · billed yearly

Save 40% Start free trial

Prices in USD. Your free trial converts to the plan you choose; cancel anytime in Settings before it ends and you won't be charged. Subscriptions renew automatically.

Private by design

Your data never leaves your phone.

No servers. No accounts. No tracking. What you build is made on your device, and only you ever see it. Privacy isn't a setting here; it's the architecture.

On-device storageOptional iCloud syncZero third-party callsNo analytics

Not medical advice

Zenject is a personal tracking tool for educational and informational use only. It is not a medical device and does not provide medical advice, diagnosis, or treatment.

Zenject does not recommend, prescribe, endorse, or validate any compound, dose, schedule, or protocol. It only records what you choose to enter. Reference ranges are shown for context and vary by lab and individual.

You are solely responsible for what you choose to track and for any decisions you make. Always consult a qualified healthcare professional before starting, changing, or stopping anything.