Comparison

Vialy vs Protocol

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

Head to head
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.

About

Protocol

Features
Read full description

Protocol is a private logbook for anyone running a hormone, peptide or supplement protocol. It holds what you take, tells you when to take it, does the syringe maths, and shows you what your bloodwork is doing about it. Everything stays on your device. No account. No sign-up. No servers. Nothing to leak. SCHEDULES THAT ACTUALLY FIT Most trackers handle "daily" and give up. Protocol handles every-other-day, every third day, specific weekdays, several doses a day, on/off cycles like 5-on/2-off or 8-weeks-on/4-off, titration ramps that step your dose at set intervals, and fixed start and end dates. Before you save anything, it shows you the next five doses so you can see the schedule is right. REMINDERS THAT HOLD UP Notifications carry Taken and Snooze buttons you can hit from the lock screen. iOS caps every app at 64 pending notifications, so Protocol rebuilds its queue each time you open it and tells you exactly how far ahead you're covered — instead of quietly dropping the ones that don't fit. RECONSTITUTION, DRAWN TO SCALE Enter what's in the vial and how much water you added. Protocol converts each dose to units and draws the fill line on a to-scale U-100 syringe. It handles mg and mcg, tells you how many doses the vial holds, and warns you when a dose won't fit the barrel. SITE ROTATION A body map that colours every injection site by how recently you used it and suggests the one you've left alone longest. Subcutaneous and intramuscular sites, tracked across every compound. BLOODWORK THAT MEANS SOMETHING Log a panel by hand, or copy the text off your results and paste it — Protocol reads it and shows you every value it found for you to confirm before anything is saved. Around 30 markers: total and free testosterone, sensitive estradiol, SHBG, LH, FSH, hematocrit, IGF-1, lipids, liver, PSA and more, each with its own trend line. Two things make the trends readable. Every dose change you make is marked on the chart, so you can see what moved and when. And each panel is tagged trough, mid-cycle or near-peak based on when you drew it relative to your last injection — because a trough reading and a peak reading are not the same measurement. Protocol will also tell you when your next trough window falls. INVENTORY Counts down as you log doses, warns you before you run out, projects the date you'll run dry, and tracks the discard date on a reconstituted vial. STACKS Save an entire protocol as one thing — every compound, dose and schedule — and apply it, edit it, or hand it to someone as a share code. Import theirs the same way. Bring across their structure and set your own doses, or take it as-is. Tag stacks so they stay findable. FOR YOUR CLINICIAN Generate a single PDF: current protocol, adherence, every lab panel with draw timing, and your full dose-change history. Something to hand over instead of describing from memory. ALSO Travel mode shifts every dose time at once. Full light and dark. Haptics. JSON export. WHAT PROTOCOL IS NOT It does not recommend compounds, doses or protocols, and it ships none of its own. It records what you enter and does the arithmetic you ask for. It is not a substitute for a clinician — particularly for anything involving hormones or prescription medication. Reference ranges shown on lab charts are commonly cited adult intervals that vary by laboratory and assay; they are context for your own reading, not targets. PRICING A 7-day free trial, then $39.99 a year. Or pay $99.99 once and own it permanently. No free tier, no ads, no data collection, no upsells. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://wisejester-sudo.github.io/protocol/privacy.html

Screenshots

Vialy4 screens
Protocol4 screens

Verdict

The call

The clearest difference is in-app purchases: Vialy at none against Protocol's 2. Vialy also leads on update cadence (every 2 days vs every 2 months). Protocol's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support 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. Protocol sells 2 in-app purchases, starting at $39.99 per year. Vialy asks for nothing beyond the download.

UpkeepUpdate frequency

Vialy ships an update every 2 days, Protocol every 2 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Vialy versus Protocol: the parameters behind the verdict, then further details
ParameterVialyProtocol
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 days — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size15 MB41 MB
Age rating17+17+
DeveloperLunium ABKevin Marsh

In-app purchases

None

Vialy

No in-app purchases

2 purchases

Protocol

Subscriptions1
  • Annual7 Days trial$39.991 Year
One-time1
  • Lifetime$99.99

Questions

Is Vialy free?
Vialy is free to download, with no in-app purchases.
Is Protocol free?
Protocol is free to download, with in-app purchases available.
Do Vialy or Protocol have ads?
Neither Vialy nor Protocol shows ads.
Which is updated more often, Vialy or Protocol?
Vialy ships an update every 2 days, and Protocol every 2 months. Most recently, Vialy was updated on October 15, 2026 and Protocol on October 24, 2026.

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