Comparison

PinPoint TRT vs Marker · Blood Test Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PinPoint TRT

This private iOS tracker helps men on testosterone replacement therapy log injections, medications, lab results, and symptoms. It visualizes serum testosterone levels with a pharmacokinetic model and offers optional local notifications for your schedule. All data is stored securely on your device.

Highlights
  • Log injections, doses, and sites
  • Track ancillary medications
  • Record lab results with editable ranges
  • Monitor symptoms and notes
  • Visualize serum testosterone levels
  • Optional local reminders
  • Sync with Apple HealthKit
Features
Read full description

PinPoint is a private iOS tracker for men on prescribed testosterone replacement therapy. Log injections, ancillary medications, lab results, and symptoms — all stored on your iPhone, never sent to a server, never tied to an account. WHAT YOU CAN TRACK - Injections: compound, ester, dose, site, and timestamp - Ancillary medications: anastrozole, hCG, DHEA, finasteride, and others - Lab panels: Total T, Free T, Estradiol, Hematocrit, Hemoglobin, PSA — with reference ranges you can edit - Symptoms and free-text notes - Body metrics: weight, body fat percentage, blood pressure (optional, can sync via Apple HealthKit) SEE THE SHAPE OF YOUR WEEK A pharmacokinetic model — calibrated to your specific compound, ester, and dosing schedule — visualizes your estimated serum testosterone level between blood draws. You can see where you are in the trough-to-peak cycle, not just where you were the morning of your last lab. REMINDERS, ON YOUR DEVICE Optional local notifications keep your injection schedule on track. Reminder content is constructed on your phone and never transmitted anywhere. PRIVATE BY DESIGN - No user accounts. No login. No email collection. - No server. The app does not contact any backend, including ours. - No analytics SDKs, no crash reporters, no ad networks, no third-party SDKs of any kind. - No selling, sharing, or licensing of any data — ever. YOUR DATA, YOUR DECISIONS - Export your full data archive at any time - Wipe every record from your device with a single tap - Delete the app and all PinPoint data goes with it HEALTHKIT (OPTIONAL) If you grant permission, PinPoint can read and write body weight, body fat percentage, and systolic/diastolic blood pressure via Apple HealthKit. PinPoint cannot access any HealthKit data type without your explicit per-type permission, and you can revoke access at any time in iOS Settings → Privacy → Health. WHO IT'S FOR PinPoint is built for patients already prescribed TRT who want a calm, private place to keep their protocol, labs, and symptoms together — and who want to walk into their next physician appointment with a clean summary to share. WHAT IT ISN'T PinPoint does not diagnose, treat, or recommend dosages. It does not support cycling, stacking, or non-TRT compounds. It is not a replacement for medical care — your prescribing physician is. PinPoint is a personal tracking tool, not a medical device. PRIVACY POLICY Read the full policy: https://bayoulabs.studio/pinpoint/privacy

About

Marker · Blood Test Tracker

Features
Read full description

Marker turns your lab reports into a clear, private record you actually keep. Bring a report in four ways: • Open a PDF from Files • Share a PDF or image from another app • Snap a photo of a printed result • Type values in by hand Marker reads the report on your device and lays out each value next to the reference range that is printed on that same report — within range, above range, or below range, in plain descriptive words. No app-invented ranges, no scores, no verdicts. When a value looks uncertain, Marker flags the line and lets you check or correct it before anything is saved, so your history stays clean. Watch a value move over the years. Each marker opens into a timeline chart with the printed reference band drawn behind it, so you can see the shape of your own data across every report you have kept. Understand what you are looking at. For common markers — full blood count, the modern lipid panel including ApoB and Lp(a), liver, kidney, thyroid, and vitamins — Marker shows a short, plain-language description of what the value measures, with its source cited. Descriptions only; Marker does not tell you what to do. Private by design: • Everything stays on your iPhone • No account, no sign-in, no cloud • No content-reading analytics — your lab results stay on your device Marker is for informational use only and is not a medical device. It does not provide a diagnosis, medical advice, or treatment recommendations. Reference ranges come from your own lab report. Always talk to a qualified professional about your results. Read any report in full, for free. Keeping it — and building your history over the years — is Marker Pro. —— PAYMENT, RENEWALS, TERMS & PRIVACY Marker Pro is available as a Year Pass (12 months, one payment, no auto-renewal) or as a one-time Lifetime purchase. Prices are shown in the app and on the App Store. No subscription, no account. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zllhff.github.io/marker/privacy.html

Screenshots

PinPoint TRT4 screens
Marker · Blood Test Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: PinPoint TRT at none against Marker · Blood Test Tracker's 2. Marker · Blood Test Tracker's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Marker · Blood Test Tracker sells 2 in-app purchases, starting at $24.99 per year. PinPoint TRT asks for nothing beyond the download.

UpkeepUpdate frequency

PinPoint TRT ships an update every 3 months, Marker · Blood Test Tracker every 3 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
PinPoint TRT versus Marker · Blood Test Tracker: the parameters behind the verdict, then further details
ParameterPinPoint TRTMarker · Blood Test Tracker
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size4 MB9 MB
Age rating17+12+
DeveloperBayou Labs LLCJan Zellerhoff

In-app purchases

None

PinPoint TRT

No in-app purchases

2 purchases

Marker · Blood Test Tracker

Subscriptions1
  • Marker Pro (Annual)3 Days trial$24.991 Year
One-time1
  • Marker Pro (Lifetime)$44.99

Questions

Is PinPoint TRT free?
PinPoint TRT is free to download, with no in-app purchases.
Is Marker · Blood Test Tracker free?
Marker · Blood Test Tracker is free to download, with in-app purchases available.
Do PinPoint TRT or Marker · Blood Test Tracker have ads?
Neither PinPoint TRT nor Marker · Blood Test Tracker shows ads.
Which is updated more often, PinPoint TRT or Marker · Blood Test Tracker?
PinPoint TRT ships an update every 3 months, and Marker · Blood Test Tracker every 3 weeks. Most recently, PinPoint TRT was updated on October 24, 2026 and Marker · Blood Test Tracker on October 25, 2026.

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