# Blood Levels — Half-life medication tracker

> Half-life medication tracker (iPhone/iPad app by Humberto Verdugo.)

- Source: https://appshunter.io/ios/app/blood-levels/id6762514852 (this page in markdown: same URL + `.md`)
- Developer: [Humberto Verdugo](https://appshunter.io/developer/1864603172)
- Category: Medical, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 18.0 · 3 MB
- Languages: English
- Released: 2026-04-23
- Data updated: 2026-06-29
- User reviews in markdown: https://appshunter.io/ios/app/blood-levels/id6762514852/reviews.md

## What is Blood Levels?

Track medication blood levels with scientific precision — using pharmacokinetic half-life calculations that show you exactly how your medications rise and fall over time.

Blood Levels works with ANY medication that has a known half-life. Unlike apps built for a single drug class, it supports GLP-1 agonists, testosterone, estradiol, insulin, thyroid medications, biologics, pain medications — anything you need to track.

WHAT BLOOD LEVELS DOES
• Visualizes your blood level over time with a smooth decay curve
• Sums contributions from every past dose to show your current true level
• Suggests when to take your next dose based on your target minimum
• Works offline — all calculations run on your device

FEATURES
• 60+ pre-loaded medications with accurate half-life data
• Custom medications — add any drug with its half-life
• Smart dose logging with injection site tracking
• Beautiful charts with target-range shading
• Dose reminders and notifications
• Weight, height, blood pressure, heart rate, and blood sugar tracking
• Side effect logging with severity
• CSV import/export
• Full JSON backup and restore (Pro)
• PDF reports for your doctor (Pro)
• Apple Health two-way sync (Pro)
• Privacy Mode to hide selected medications on demand (Pro)
• iCloud sync (optional)
• Dark mode, AMOLED black theme, light mode
• Metric or Imperial units

21-DAY FREE TRIAL
All features are free for 21 days. Unlock forever with a single $4.99 purchase. No subscription. No auto-renewal. No recurring fees.

PRIVACY FIRST
No accounts. No tracking. No ads. No analytics SDKs. Your data lives on your device and, if you choose, your private iCloud. The developer never sees it.

MEDICAL DISCLAIMER
Blood Levels is an informational tool, not a medical device. The calculations are estimates based on standard pharmacokinetic formulas and published half-life data. Actual levels vary with individual metabolism, drug interactions, and other factors. Always consult your healthcare provider for medical decisions.

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Questions or feedback? humberto+bloodlevels@humberto.us

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Blood Levels Pro | $4.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-05-03

What's new in 1.1

• 20 new medications: caffeine, nicotine, and 18 common blood pressure drugs (beta-blockers, ARBs, ACE inhibitors, calcium channel blockers, and diuretics)
• Edit any logged dose — tap a dose row anywhere in the app to fix the amount, time, injection site, or notes
• Swipe to edit or delete in Dose History; tap-and-hold for the same options on the Dashboard
• Faster, smoother dashboard, especially with lots of dose history
• Charts now refresh immediately after logging or editing a dose

### 1.0 — 2026-04-23

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-29.*