Vialy vs Loop
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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)
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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.
Loop
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Loop is a private, easy-to-use tracker for your peptide, GLP-1, or TRT injection routine. It keeps your schedule, dose history, reminders, supplies, and injection sites organized in one place - so you can stay consistent without spreadsheets or guesswork. Loop is a personal tracking tool. It does not provide medical advice, dosing recommendations, or any way to obtain medications. Always follow the guidance of a qualified healthcare professional. WHAT YOU CAN DO WITH LOOP • Build your schedule - set up recurring injections and see your whole routine at a glance • Log every dose - keep a clear, private history of what you recorded and when • Stay on time - reminders so you never miss a scheduled dose • Track your supply - know how much you have left and reorder in time • Rotate injection sites - log sites on a body map to keep your rotation organized • Reconstitution calculator - fast, accurate mixing calculations PRIVATE BY DESIGN Your data is yours. Loop is built around privacy, with secure sign-in and full control over your information, including in-app account deletion. LOOP PRO Loop requires a subscription to use. Choose a monthly or yearly plan; the yearly plan may include an introductory free trial where offered. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your App Store account settings. HEALTH DISCLAIMER Loop is designed for personal tracking and educational purposes only. It is not intended to provide medical advice, diagnosis, treatment recommendations, or dosing instructions. Always consult a qualified healthcare provider for any medical decisions or health concerns. All features are for personal record-keeping and educational reference only. Privacy Policy: https://tryloop.health/privacy-policy Terms of Service: https://tryloop.health/terms-of-service Support: hello@tryloop.health
Screenshots
Verdict
The clearest difference is in-app purchases: Vialy at none against Loop's 3. Vialy also leads on update cadence (every 2 days vs every 4 months) and iOS requirement (17.0 vs 26.5). 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
Both are free to download. Loop sells 3 in-app purchases, starting at $9.99 per month. Vialy asks for nothing beyond the download.
Vialy ships an update every 2 days, Loop every 4 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | Vialy | Loop |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 15 MB | 37 MB |
| Age rating | 17+ | 4+ |
| Developer | Lunium AB | ROK POPOVIC |
In-app purchases
Vialy
No in-app purchases
Loop
- Loop Pro - Monthly$9.991 Month
- Loop Pro - Yearly Offer$29.991 Year
- Loop Pro - Yearly3 Days trial$39.991 Year









