Comparison

PeptidePilot vs VialRhythm

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

Head to head
About

PeptidePilot

Features
Read full description

PeptidePilot is a private journal for tracking peptide doses, schedules, inventory, and how each one makes you feel. No account, advertising, or tracking. WHAT IT DOES • Schedule recurring, multi-time, or as-needed doses with local notifications. • Track vials, premixed blends, pens, syringes, tablets, capsules, liquids, sprays, and more. • Reconstitution calculator with U-30, U-40, U-50, and U-100 syringe calibration. • Per-compound blend inventory and automatic reconciliation after edited or deleted logs. • Injection-site rotation — the app suggests the next site based on your history. • Side-effects journal — rate energy, mood, sleep, and GI on a 1–5 scale after a dose. • Insights — current streak, best streak, adherence over 7/30 days, and a simple chart of doses per day. • Correlation analysis — once you have a few weeks of ratings, see how each peptide changes your averages. • Cycle planner — set "weeks on / weeks off" and the app auto-pauses scheduling during off weeks. • Medals — quiet hex-shaped achievements for streaks, adherence, awareness, and rotation discipline. CATALOG A bundled, citation-linked reference of common peptides — what they are, half-life, regulatory status, references. Each entry shows a clear regulatory banner (FDA-approved prescription, compounded prescription, or research chemical). Adding any catalog entry asks you to acknowledge that status. PeptidePilot does not sell, ship, prescribe, recommend dosing, or replace medical advice. PRIVACY Your journal stays on your devices and, if you enable it, in your private iCloud account. There are no analytics, advertising SDKs, ads, or telemetry. Encrypted caregiver sharing and FDA checks are always user-controlled. EXTRAS • iPhone widget showing your next dose. • Live Activity / Dynamic Island countdown when a dose is imminent. • Apple Watch companion with next-dose sync and quick logging. • Siri Shortcut: "Log a peptide dose in PeptidePilot". • FDA recall center using the official openFDA feed, with MedWatch access. • Encrypted read-only caregiver passes that expire and can be revoked. • HealthKit (optional, read-only): authorized measurements, sleep, and supported medication context. • Backup & restore: encrypted JSON file saved to Files / iCloud Drive. • Face ID / Touch ID lock. • PDF & CSV export of your dose log. NOT MEDICAL ADVICE PeptidePilot is a journal. It does not diagnose, treat, or recommend. Consult a licensed clinician before starting, stopping, or changing any peptide protocol.

About

VialRhythm

Organize your entries, view your schedule, and maintain a history with this local-first app. Features include customizable themes, a calculator for transparent arithmetic, and iPhone-specific integrations like widgets and Face ID lock.

Highlights
  • Local-first scheduling and record-keeping
  • Day-at-a-glance schedule view
  • Mark entries as completed, skipped, or missed
  • Customizable themes
  • Transparent arithmetic calculator
  • iPhone-specific features (widgets, Face ID)
Read full description

VialRhythm is a private, local-first schedule and record-keeping app for iPhone. Organize your own entries, see what is next, and keep a clear history without a required account. YOUR DAY AT A GLANCE See today’s schedule, mark an entry completed, skipped, or missed, and edit saved details whenever plans change. BUILT FOR IPHONE • Local notifications for schedules you create • Face ID or passcode app lock • Home Screen widget for the next saved entry • App Shortcuts for fast navigation and completion • Apple Calendar export • Native offline launch • Local JSON backup and restore MAKE IT YOURS Choose from Evergreen Ivory, Midnight Slate, and Coastal Sage themes. CUSTOM CYCLE TRACKING Add your own weeks-on and weeks-off cycle to daily, weekday, or interval schedules. Calendar indicators and entry badges make each phase visible. OFF weeks do not create doses, missed entries, or local reminders. VialRhythm does not recommend cycle lengths or protocols. PEPTIDE KNOWLEDGE Browse searchable, plain-language educational snapshots covering main body roles, approved uses, and popular research goals. Research entries are clearly labeled and the library does not provide buying, mixing, dosing, or treatment directions. TRANSPARENT ARITHMETIC The optional calculator shows every user-entered input, unit conversion, and formula. It does not recommend or verify a dose. VialRhythm is an informational, organizational, and arithmetic tool for research record-keeping purposes only. It does not provide medical advice, diagnosis, treatment, prescribing, dosage recommendations, or safety verification. Verify all information with a licensed physician or pharmacist.

Screenshots

PeptidePilot4 screens
VialRhythm4 screens

Verdict

The call

The clearest difference is update cadence: VialRhythm at daily against PeptidePilot's weekly. PeptidePilot's advantage is device support (3 vs 1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PeptidePilot ships an update weekly, VialRhythm daily. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 7 level
PeptidePilot versus VialRhythm: the parameters behind the verdict, then further details
ParameterPeptidePilotVialRhythm
PriceFreeFree
Rating—5.0 (6 ratings) — better
Number of ratings—6 — better
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size10 MB5 MB
Age rating17+17+
DeveloperCaden BartlettMarc Dela Cruz

In-app purchases

None

PeptidePilot

No in-app purchases

None

VialRhythm

No in-app purchases

Questions

Is PeptidePilot free?
PeptidePilot is free to download, with no in-app purchases.
Is VialRhythm free?
VialRhythm is free to download, with no in-app purchases.
Do PeptidePilot or VialRhythm have ads?
Neither PeptidePilot nor VialRhythm shows ads.
Which is updated more often, PeptidePilot or VialRhythm?
PeptidePilot ships an update weekly, and VialRhythm daily. Most recently, PeptidePilot was updated on October 18, 2026 and VialRhythm on October 24, 2026.

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