Pepti vs VialRhythm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pepti
Log medication doses, monitor weight, and visualize your health journey with detailed analytics. Track progress, nutrition, and manage inventory with customizable themes and data export.
- Precise dose logging with details
- Interactive calendar heatmap for consistency
- Deep analytics on compounds and trends
- Weight and nutrition tracking with correlations
- Progress photo timeline
- Data export (CSV/PDF)
- Inventory management with alerts
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Pepti is a private, beautifully designed log for your peptide protocols. Record every dose, see the patterns in your own data, and keep your weight, meals, photos and recovery in one place. NEW: MEET PEPTAI Ask about your log in plain words: "When did I last take BPC-157?", "Compare this month to last", "When will my supply run out?" PeptAI answers from your own entries with summaries, comparisons, timelines, adherence, supply runway, injection sites, pain and notes. Reports save automatically, export as PDFs, and an optional weekly recap arrives every Sunday. PeptAI describes what you logged. It never gives dosing advice. LOG IN SECONDS • Record amount, units, injection site, time and notes • Quick Log your usual doses in one tap • Log blends like KLOW or GLOW as a single injection • Bulk add several doses at once • Edit or delete any entry from History SEE THE TREND, NOT THE NOISE • A 7-day average weight line smooths out daily swings • The Doses + Weight view puts compounds and blends on your weight timeline, with each dose phase marked • Monthly averages, pinch-to-zoom, and press-and-drag to inspect any day • Each month compared with last month's average ANALYTICS FROM YOUR OWN LOG • Totals, most active days and top compounds • Injection site rotation and adherence • Average weight on dosing days compared with off days, and how weight moved with different workouts • GLP-1 active estimate: an estimate of how much is still circulating, based on the half-life you set SHARE YOUR PROGRESS Progress, Consistency, Summary and Before/After cards, sized for Stories, feed or square. Compound names and doses stay off the card unless you add them, and weight can show as a percentage. Save to Photos in one tap. TOOLS THAT FIT YOUR ROUTINE • Reconstitution calculator with a visual syringe guide • Inventory tracking with low-stock alerts • Dose reminders: daily, weekly, specific days or every few days • Meal reminders and a progress-photo reminder, skipped automatically when you've already logged • Calendar view of every dosing day • Nutrition and macro logging • Progress photos with side-by-side comparison • Injury and recovery tracking • Export your data to CSV or PDF MAKE IT YOURS 11 themes and 4 font styles (Classic, Modern, Rounded or Typewriter), plus custom colors for each compound. PRIVATE BY DESIGN Your log is stored on your device. No account needed. Pepti is a personal tracking tool for recording your own information. It does not provide medical advice, diagnosis or treatment, and nothing in the app is a recommendation. Talk to a qualified healthcare professional about any treatment decisions.
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.
- 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)
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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
Verdict
The clearest difference is update cadence: VialRhythm at daily against Pepti's every 9 days. VialRhythm also leads on iOS requirement (17.0 vs 26.2). On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Pepti against 5.0 for VialRhythm. Both are backed by a comparable volume of ratings — 4 and 6 respectively.
Pepti ships an update every 9 days, VialRhythm daily. Both last shipped on October 24, 2026.
| Parameter | Pepti | VialRhythm |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) | 5.0 (6 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 9 days | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 17+ | 17+ |
| Developer | Wil Loveless | Marc Dela Cruz |
Customer experience
Pepti
VialRhythm
In-app purchases
Pepti
No in-app purchases
VialRhythm
No in-app purchases









