Comparison

Peptide Tracker vs Vialy

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

Head to head
About

Peptide Tracker

Track peptide and TRT/HRT protocols with dose calculators, blood-level charts, and injection reminders. Features an AI coach that analyzes your labs and health data for personalized insights. Your health data remains private on your device.

Highlights
  • Dose, blend, and half-life calculators
  • Blood-level PK charts
  • Injection logging with site rotation
  • Full inventory tracking
  • Phased protocols and titration schedules
  • Lab result tracking and trend charts
  • AI coach for health data analysis
Read full description

The dose calculators, blood-level charts, reminders, and full protocol tracking are free. No trial, no paywall, no catch. Most peptide and TRT apps charge for exactly this. I don't. Frontload is built for people running serious peptide and TRT/HRT protocols. Track every injection, watch your blood levels rise and fall between doses, run the dose and vial-mix math, and never miss a shot. The AI coach, the one paid feature, reads your own labs, protocols, and injection history, and it's built to say "I don't know" instead of guessing. WHAT'S FREE (and stays free) • Dose, blend, and half-life calculators • Blood-level PK chart: peak, trough, and steady-state, per compound • Injection logging with site rotation • Full inventory: every peptide, HRT compound, GLP-1 (semaglutide, tirzepatide), supplement, and med • Phased protocols with automatic on/off scheduling • Titration schedules: gradual dose adjustments over weeks, auto-stepping • Lab result tracking and trend charts • Macro logging • Sleep, fitness, and weight sync from Apple Health or Health Connect • Reminders and notifications • Light and dark mode • JSON export, anytime No account. No analytics. No cloud. Your health data lives on your phone. I can't see it, sell it, or lose it. THE AI COACH (Pro) Not a chatbot. Not a correlation engine. An actual coach with direct access to your full health context (labs, protocols, peptide stack, GLP-1 doses, nutrition, sleep, fitness, side effects), plus a curated knowledge base of peptide and HRT references. It reads a lab PDF, scans a supplement label, analyzes a side-effect cluster, and explains it in plain language. Grounded in your own data, not the internet's. Pro is $9.99/mo or $59.99/yr: unlimited AI coach conversations with photo attachments, unlimited lab PDF parsing, and unlimited nutrition and supplement-label scans. WHO BUILT THIS Frontload is a one-person project. I'm in the HRT and peptide community myself, and I wanted a tracker that didn't feel cold and clinical, so I built the one I wanted, with every feature I needed. I had my wife test it the whole way through, so it isn't built only for the guys. She told me what women actually need in a tool like this: cycle-aware tracking, the right hormone panels, and a tracker that doesn't assume everyone's a man on TRT. It's all in here. I gave it to one friend, hoping to help him. He gave it to another. That's how Frontload has gotten everywhere it's gotten so far. No ads. No growth team. The mission isn't to get rich. It's to cover the cost of running the app and build something genuinely useful to people on their HRT and peptide journeys. The AI Coach engages with compounds, doses, and protocols directly, but it's not a doctor. Always discuss any protocol change with your prescribing physician. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Vialy

This app helps adults using prescribed peptides track their doses, manage protocols, and log injections. It calculates concentrations and units, plans injection schedules, and tracks vial usage. A reference library and dose reminders are included.

Highlights
  • Live dose and concentration calculation
  • Customizable protocol planning
  • Body map injection logging
  • Vial usage and cost tracking
  • Built-in peptide reference library
  • Dose reminders
  • Data export (JSON/CSV)
Features
Read full description

Vialy is a personal tracking and calculator tool for adults using prescribed peptides. It handles the math so you do not have to. Free. No ads. No subscriptions. No in-app purchases. RECONSTITUTE WITH CONFIDENCE Scrub the BAC water amount and watch the dose, the concentration, and the syringe units update live. No more squinting at a calculator app between hand washes. PLAN YOUR PROTOCOL Build phases with custom durations, scheduled days (daily, 5-on-2-off, weekly, or anything custom), dose in milligrams, multiple dose times per day, and a grace window for missed doses. Vialy keeps track of where you are in the protocol and what is next. LOG INJECTIONS Tap to log a dose from a body map. Vialy remembers each site you have used and warms up the map with halos so rotation becomes automatic. No spreadsheet required. TRACK YOUR VIALS Each vial shows the doses remaining, the estimated days until empty, and the cost. Plan-backed vials are sorted by soonest-empty first; as-needed vials get their own simpler view. Archive a vial when it is retired and the stats stay with it. PEPTIDE REFERENCE LIBRARY A built-in catalog of common peptides with mechanism notes, half-life, storage guidance, common side effects, and contraindications. This information is for context only and is not medical advice. DOSE REMINDERS Optional local notifications at your scheduled dose times, plus a heads-up when a vial is running low so you have time to reorder. EXPORT YOUR DATA JSON or CSV from Settings, anytime. Your data is yours. PRIVATE BY DESIGN - Sign in with Apple only - no passwords, no third-party logins - No tracking, no analytics, no advertising - No HealthKit access, no location, no camera, no contacts - Account deletion is one tap; your data is removed from our servers IMPORTANT Vialy is not a medical device and does not provide medical advice. It does not replace your clinician. All doses are entered by you for personal reference only. Always follow the guidance of a licensed clinician who has prescribed your protocol.

Screenshots

Peptide Tracker4 screens
Vialy4 screens

Verdict

The call

The clearest difference is in-app purchases: Vialy at none against Peptide Tracker's 2. Vialy also leads on update cadence (every 2 days vs every 5 days). Peptide Tracker's advantage is ratings volume (41 vs 1) and device support (3 vs 1). On price, rating, review sentiment and ads 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. Peptide Tracker sells 2 in-app purchases, starting at $9.99 per month. Vialy asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Peptide Tracker against 5.0 for Vialy. That said, the two scores are not equally well evidenced: Peptide Tracker has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Peptide Tracker ships an update every 5 days, Vialy every 2 days. The most recent releases landed on September 26, 2026 and August 3, 2026 respectively.

Scorecard6 real differences · 4 level
Peptide Tracker versus Vialy: the parameters behind the verdict, then further details
ParameterPeptide TrackerVialy
PriceFreeFree
Rating5.0 (41 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings41 — better1
Update frequencyEvery 5 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size50 MB14 MB
Age rating17+17+
DeveloperSTACKEDDD LLCLunium AB

Customer experience

Peptide Tracker

All ratings41 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews19 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Vialy

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Peptide Tracker

Subscriptions2
  • Stackeddd Pro$9.991 Month
  • Stackeddd Pro$59.991 Year
None

Vialy

No in-app purchases

Questions

Is Peptide Tracker free?
Peptide Tracker is free to download, with in-app purchases available.
Is Vialy free?
Vialy is free to download, with no in-app purchases.
Which has better reviews, Peptide Tracker or Vialy?
Peptide Tracker and Vialy are both rated 5.0 out of 5 on the App Store, from 41 and 1 ratings respectively.
Do Peptide Tracker or Vialy have ads?
Neither Peptide Tracker nor Vialy shows ads.
Which is updated more often, Peptide Tracker or Vialy?
Peptide Tracker ships an update every 5 days, and Vialy every 2 days. Most recently, Peptide Tracker was updated on September 26, 2026 and Vialy on August 3, 2026.

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