Calculate reconstitution
Vial mg + BAC water + target dose → syringe units on a U-100 syringe. Verify the math, every refill.
Compounded GLP-1 + peptide tracking
Calculate. Schedule. Track.
The precision app for compounded GLP-1 and peptide protocols. Free reconstitution calculator, plasma-decay charts, multi-compound stack tracking. On-device by design.
iOS 17+ · 7-day free trial of Pro
160+
Compounds
GLP-1s, research peptides, your custom additions.
100%
FDA-label cited
Half-lives, dose ramps, side-effect taxonomy traced to source.
0
Servers
Your data lives on your phone, where it stays.
How it works
Four moves, repeated, until your protocol is dialed.
Log your dose
Tap to log. Status turns success-green. Active protocol moves to the top of Today; next-dose timer starts.
Read plasma decay
14-day medication-level chart updates in place. Side effects anchor to the curve where you logged them.
Scan your meals
Snap any meal. Gemini Vision + USDA verify the macros. Anchored to the same timeline as your dose log.
What Titrate tracks
Track compounded semaglutide, tirzepatide, BPC-157, and 160+ peptides.
Semaglutide · Tirzepatide · Retatrutide · Liraglutide · Cagrilintide · Survodutide · Mazdutide · BPC-157 · TB-500 · Ipamorelin · CJC-1295 · GHK-Cu · MOTS-c · NAD+ · Tesofensine · 5-Amino-1MQ · Semaglutide · Tirzepatide · Retatrutide · Liraglutide · Cagrilintide · Survodutide · Mazdutide · BPC-157 · TB-500 · Ipamorelin · CJC-1295 · GHK-Cu · MOTS-c · NAD+ · Tesofensine · 5-Amino-1MQ ·
Reconstitution math · Plasma decay · Half-life · Multi-compound stacks · Food scan · USDA nutrition · Side-effect log · Vial inventory · Dose ramps · Weekly summary · PDF export · CSV export · Apple Watch · iCloud sync · On-device AI · Reconstitution math · Plasma decay · Half-life · Multi-compound stacks · Food scan · USDA nutrition · Side-effect log · Vial inventory · Dose ramps · Weekly summary · PDF export · CSV export · Apple Watch · iCloud sync · On-device AI ·
The compound library is curated, cited, and growing. Custom compounds are first-class citizens of the system.
Reconstitution math, built in
The math your spreadsheet keeps getting wrong.
Vial mg, BAC water volume, target dose — in. Syringe units on a U-100 — out. Worked for compounded semaglutide, tirzepatide, BPC-157, and every peptide. Free to use, no account.
Try the calculatorWhat makes Titrate different
Built for the level of detail serious GLP-1 and peptide protocols need.
Reconstitution math
The calculator that replaces the spreadsheet.
Vial mg, BAC water, target dose. Mono-numeric output, formula breakdown, doses-per-vial. The first thing you'll open every time a new vial arrives.
Plasma-decay charts
Read the half-life. Skip the calendar.
14-day medication-level chart based on each compound's published pharmacokinetics. Multi-compound stacks overlay so you can read interaction windows at a glance. Side-effect markers anchor to the curve.
Food scan
Photograph the plate. Read the macros.
Snap a photo of any meal. Gemini 2.5 Flash identifies the foods on a zero-retention inference proxy. USDA FoodData Central enriches each item with verified nutrition data. Calories, protein, carbs, and fat land in your dose log, anchored to weight and side effects on the same timeline.
Today, at a glance
Doses, vials, weight, side effects. One screen.
Active protocol on top. Inventory countdown when a vial gets low. Status pill that goes amber the day a dose is due, success-green the moment you log it. Multi-protocol stacks render as a single ledger.
Four pillars
Built like a precision tool. Priced like one too.
Privacy by architecture
Your dose log, weight, and protocol data live in your private iCloud container. CloudKit syncs end-to-end across your devices. Food-scan images flow through a zero-retention inference proxy and exist only for the length of the request.
Real citations
Every half-life, every dose ramp, every legal note traces to NEJM, FDA labels, or peer-reviewed sources. The app tells you the truth about what you're taking.
23 compounds at launch
Every FDA-approved GLP-1 plus the research peptide stack: BPC-157, ipamorelin, GHK-Cu, Tesofensine, MOTS-c, NAD+ and more. Custom compounds are first-class.
On-device weekly summary
Apple Intelligence reads your last 7 days locally and writes you one factual paragraph. Everything stays on your phone. Available on iPhone 15 Pro and later.
Plasma-decay charts
Read the curve. Not just the last data point.
14-day medication-level chart built from published FDA pharmacokinetics. Side effects anchor to the curve where you logged them. Multi-compound stacks overlay so interaction windows are visible.
See on iOSWhat Titrate stands for
Built on FDA labels, NEJM, and peer-reviewed pharmacokinetics.
- 0
- Apple Foundation Models reads your last 7 days locally and writes you one paragraph. The phone stays silent.
- 100%
- Half-lives, dose ramps, drug labels, side-effect taxonomy. Every claim traces to FDA labels, NEJM, or peer-reviewed sources.
- 23+
- Every FDA-approved GLP-1, plus the research peptide stack. Custom compounds anytime.
Servers running your data
Cited
Compounds at launch
Multi-compound stacks
Track BPC-157 next to your GLP-1. In one timeline.
Custom compounds are first-class. Cycle length, dose ramp, and plasma decay land on the same chart so the interaction window is obvious. Built for the spreadsheet user who outgrew their spreadsheet.
Get TitrateTitrate vs the field
Honest comparison against Shotsy, MeAgain, Peptify, Pep AI, and PepCalc.
Researched live from each app's App Store listing, developer site, and recent user reviews on 2026-05-16. Where a competitor is genuinely ahead, we say so.
Scroll the table horizontally to see all 6 apps
| Titrate | Shotsy | MeAgain | Peptify | Pep AI | PepCalc | |
|---|---|---|---|---|---|---|
Reconstitution & math Reconstitution calculator | ✓ | · | · | ~ | ✓ | ✓ |
Per-compound presets | ✓ | · | · | · | · | · |
Free web version of calculator | ✓ | · | · | · | · | · |
Pharmacokinetics Plasma-decay chart 14-day medication-level curve | ✓ | ✓ | ~ | ✓ | ~ | ✓ |
Side-effects anchored to curve symptoms plotted where they happened on plasma curve | ✓ | · | · | · | · | · |
Multi-compound stack overlay | ✓ | ~ | ~ | ✓ | ~ | ~ |
Interaction warnings | ~ | · | · | ✓ | ✓ | · |
Logging & tracking Structured side-effect taxonomy | ✓ | ✓ | ✓ | ✓ | ✓ | · |
Multi-route (sub-Q, oral, nasal, topical) | ✓ | ~ | ~ | ✓ | ~ | ~ |
Bloodwork OCR import | · | · | · | ✓ | ✓ | ✓ |
Vial inventory + expiry alerts | ~ | · | · | ✓ | ✓ | ✓ |
Nutrition Manual nutrition logging | ✓ | ✓ | ✓ | · | ✓ | · |
AI photo-scan macros | ✓ | · | ✓ | · | ✓ | · |
USDA FoodData verification | ✓ | · | · | · | · | · |
AI On-device LLM (Apple Foundation Models) | ✓ | · | · | · | · | · |
Cloud AI features | · | · | ✓ | ~ | ✓ | · |
Pattern detection (plateau, drift, spike) | ✓ | · | · | · | ~ | · |
Apple ecosystem HealthKit (bidirectional) | ✓ | ~ | ~ | · | ~ | · |
Apple Watch app | ✓ | ✓ | · | · | · | · |
iPad native | ✓ | · | ✓ | ✓ | ✓ | ✓ |
Privacy On-device or E2E-encrypted by default | ✓ | ✓ | · | ✓ | · | ✓ |
Zero server-side data access | ✓ | ✓ | · | ✓ | · | ✓ |
No third-party ad/analytics SDKs | ✓ | ✓ | · | ✓ | · | ✓ |
Data export Clinician PDF | ✓ | ✓ | · | ✓ | ✓ | ✓ |
CSV export | ✓ | ✓ | · | · | · | · |
JSON full-bundle export | ✓ | ✓ | · | · | · | · |
Legend: ✓ ships · ~ partial / limited · ·not supported. “Partial” means the feature exists but with material caveats — e.g., HealthKit read-only when bidirectional is the bar, or PK chart without side-effect anchoring.
Where each competitor wins, where Titrate wins.
None of these apps are bad. Each owns a real lane. The honest framing below is what we'd tell a friend who asked which one to install.
Dominant brand-name GLP-1 tracker · 23K reviews, 4.8★
Shotsy
What they do best
Cleanest reliable logging for brand-name GLP-1s. Real PK chart for semaglutide, tirzepatide, liraglutide, dulaglutide. Strong export story (CSV + JSON + PDF). Mature private-iCloud sync. Home-screen widgets. Apple Watch app.
Where they fall short vs Titrate
Zero reconstitution math (their users don't compound). No peptide library beyond FDA GLP-1s. No food photo scan. No AI anywhere. PK chart shows medication levels but doesn't anchor side-effects to the curve. iPhone-only — no iPad. Recent 67% yearly price hike is the #1 complaint driving people to look at alternatives.
Honest framing
If you're on Wegovy/Zepbound/Ozempic from a US pharmacy and never touch a vial of BAC water, Shotsy is the safer, more mature pick. If you compound, peptide-stack, or want food-photo AI and side-effects anchored to your plasma curve, choose Titrate.
Food-and-feelings GLP-1 journey · ~17K reviews, friendly tone
MeAgain
What they do best
Genuinely good food-tracking layer — photo + barcode + search with protein/fiber/water tied to symptoms and dose days. "Journey Cards" + capybara widget make engagement work in a way no competitor matches. Strong daily-timeline integration.
Where they fall short vs Titrate
No reconstitution calculator. No real plasma curve. No multi-compound visualization. No on-device AI. Cloud-based with data linked to identity, used for marketing analytics — the worst privacy posture of the five. No free trial (users pay $14.99/$119.99 before testing). Android-side bugs editing food entries.
Honest framing
If your priority is the GLP-1 emotional journey and you want a friendly capybara to celebrate with, MeAgain. If you want privacy, reconstitution, and PK rigor, Titrate.
Closest functional twin · two-compartment PK engine, $89.99 lifetime
Peptify
What they do best
On three axes ahead of Titrate today: (1) a genuine two-compartment PK engine more sophisticated than the published-FDA-PK approach, (2) 80+ biomarker bloodwork tracker with OCR, (3) 61 PubMed-cited compounds with evidence ratings + interaction checker. Learning system with courses, XP, and "Half-Life Rush" mini-games. Aggressive $89.99 lifetime tier.
Where they fall short vs Titrate
No HealthKit. No Apple Watch. No food/nutrition tracking. No AI features despite the modern stack. PK chart is pure modeling — not anchored to side-effects on the same curve. PDF export exists but no CSV/JSON. Only 12 ratings so far — buyer risk on a new app.
Honest framing
If you're a serious researcher who lives in bloodwork and wants the most academically rigorous peptide library, Peptify — consider the lifetime tier. If you need HealthKit/Watch/iPad integration, food scan, on-device AI summaries, and cloud sync that's still private, Titrate.
AI chat + biggest peptide catalog · 75+ profiles, weak privacy
Pep AI
What they do best
Owns the AI angle in marketing — "Pep Bot" chat, AI meal scanner, AI body composition from photos, AI Insights cross-correlations. Largest claimed compound library (75+ peptide & GLP-1 profiles). Verified-creators protocol section + anonymous moderated community — neither of which Titrate has.
Where they fall short vs Titrate
Worst privacy posture of the five: tracks identifiers for third-party advertising, data linked to identity, used for analytics. Reconstitution calc exists but no per-compound presets. PK chart is shallow. HealthKit is read-only and limited to steps/workouts/activity — no body-comp or nutrition write-back. No Apple Watch. Top 1-star complaints: hard paywall on first peptide entry, login bugs, locked-out-after-paying.
Honest framing
If you want a Peptide GPT chatbot and the biggest catalog to browse, Pep AI. If you care about not being a product to advertisers, on-device AI that never leaves your phone, and a working HealthKit write-back loop, Titrate.
Calculator authority (by PepCalc dev) · cheapest tier, best privacy
Peptide Tracker & Calculator
What they do best
Calculator authority earned — Dzeveckij also ships PepCalc, the standalone peptide calculator. Deepest inventory model: concentration + units + size + reconstitution liquid + storage conditions + batch number + expiration + low-stock alerts. Best-in-class privacy story (App Store privacy card literally reads "Data Not Collected"). Cheapest tier at $3.99–$4.99/mo.
Where they fall short vs Titrate
No side-effect log. No food/nutrition tracking. No AI. No HealthKit. No Apple Watch. No plasma-decay anchored to symptoms. No multi-compound overlay. Fundamentally a vial-and-calculator app with bloodwork attached — the protocol-experience layer Titrate ships is absent.
Honest framing
If you want the cheapest, most private, most inventory-rigorous peptide-and-calculator combo and you'll log symptoms and meals in Apple Health or paper, Dzeveckij's app. If you want the integrated protocol experience — symptoms on the plasma curve, food in the timeline, weekly AI summaries, Watch + iPad — Titrate.
Titrate's lane
The precision tracker for people who actually reconstitute.
Six things only Titrate ships against this set: side-effects anchored to the plasma curve, on-device LLM weekly summary via Apple Foundation Models, bidirectional HealthKit write-back for body composition and macros, an Apple Watch app, private CloudKit sync with zero Titrate servers, and a free in-app + web reconstitution calculator with the formula shown. If those map to what your protocol needs, Titrate is the right install.
Download on the
App Store
Free to start · 7-day Pro trial · iOS 17+
Pricing
Free reconstitution calculator. $49.99/yr for the full tracker.
Free
$0
Free forever. Card optional.
- Single-protocol tracking
- Reconstitution calculator
- Side-effect logger with 12-symptom taxonomy
- 7-day medication-level chart
- Up to 5 progress photos
Pro
7-day trial$49.99/yr
Or $9.99/mo. Cancel anytime in Settings.
- Multi-compound stacking (track 4+ peptides)
- 14-day chart with projected next-dose curve
- On-device AI weekly summary (iOS 26+)
- Unlimited progress photos
- Clinician PDF export
- Long-term CSV data export
Both tiers ship as in-app purchases on the App Store. Subscription management lives in Settings → Apple ID → Subscriptions.
Questions, answered
Reconstitution math, dose schedules, and the answers Google asks about.
- What is the reconstitution formula for compounded semaglutide?
- Dose volume (mL) = target dose (mg) ÷ (vial mg ÷ BAC water mL). On a U-100 insulin syringe, 1 unit equals 0.01 mL. A 5 mg vial reconstituted in 1 mL gives 5 mg/mL; a 0.25 mg starter dose works out to 0.05 mL = 5 units. Try the semaglutide reconstitution calculator →
- How many units do I draw for a 0.25 mg semaglutide dose?
- Depends on your vial concentration. For a 5 mg vial reconstituted in 1 mL BAC water (5 mg/mL): 5 units. Reconstituted in 2 mL (2.5 mg/mL): 10 units. Reconstituted in 3 mL (1.67 mg/mL): 15 units. Always read your pharmacy label, not the last vial. Calculate your specific vial →
- How many units do I draw for a 2.5 mg tirzepatide starter dose?
- For a 30 mg vial reconstituted in 1 mL (30 mg/mL): 8.3 units. In 2 mL (15 mg/mL): 16.7 units. In 3 mL (10 mg/mL): 25 units. Tirzepatide concentrations vary more than semaglutide because the FDA-approved dose range is 6× wider (2.5–15 mg). Calculate tirzepatide units →
- How much BAC water do I add to a 5 mg semaglutide vial?
- Whatever your pharmacy specified. 1 mL, 2 mL, and 3 mL are all common — the choice changes the concentration, not the total mg in the vial. If your prescriber didn't specify, 2 mL is the most reversible default (gives 2.5 mg/mL, so doses up to 2.5 mg fit a single 1 mL syringe draw). Read the compounded semaglutide guide →
- What's the half-life of semaglutide vs tirzepatide?
- Semaglutide terminal half-life is ~165 hours (~7 days) per Wegovy/Ozempic FDA labels. Tirzepatide is ~120 hours (~5 days) per Mounjaro/Zepbound labels. Liraglutide is ~13 hours (daily dosing). Steady-state on weekly GLP-1s is reached after 4–5 half-lives, which is 4–5 weeks at any new dose step. Read the half-life deep dive →
- When does semaglutide reach steady state?
- After 4–5 half-lives, which is roughly 4–5 weeks at any new dose. This is why the FDA-approved Wegovy ramp (0.25 → 0.5 → 1.0 → 1.7 → 2.4 mg) moves every 4 weeks — you're waiting for the previous step to plateau before stacking on more. Read the semaglutide schedule guide →
- How is Titrate different from Shotsy or MeAgain?
- Shotsy and MeAgain are excellent for branded weekly GLP-1s prescribed through US telehealth. Titrate is built specifically for compounded protocols where vial concentration varies pharmacy to pharmacy, where you need reconstitution math built in, where you stack multiple peptides, and where the plasma-decay curve actually matters for timing side effects. See the comparison table →
- Does Titrate work for compounded GLP-1?
- Yes — that's the primary use case. The app takes vial mg + BAC water volume + target dose and computes your syringe units in real time. When your pharmacy changes the BAC water on your next refill (a common cause of accidental half-doses), the calculator catches it. Try the peptide reconstitution calculator →
- Does Titrate sync with Apple Health?
- Yes. Body mass, body composition, dietary energy, protein, carbs, fat, and water all sync bidirectionally with HealthKit. Add an Apple Watch and you log doses from your wrist. iCloud private container handles cross-device sync for the data Apple Health doesn't carry (dose log, reconstitution history, photos). Read the blog →
- Where does my dose data live?
- On your phone, in a private CloudKit container Apple end-to-end encrypts. The weekly AI summary runs on-device using Apple Foundation Models. Food-scan photos route through a no-train, no-log proxy and are never stored. There are zero Titrate servers reading your data. Read the privacy policy →
- Can I track multiple peptides at once?
- Yes, with the Pro tier. Multi-compound stacking overlays plasma-decay curves so interaction windows are visible (e.g. BPC-157 + TB-500, or semaglutide + cagrilintide). Free tier covers single-protocol tracking, which handles ~80% of solo GLP-1 users. Read the BPC-157 dosing guide →
- What is BPC-157 dosing?
- BPC-157 has no FDA approval. Animal studies and user protocols converge on: 100–200 mcg/day (general), 200–500 mcg/day (most-reported for tendon/ligament recovery), 500–1000 mcg/day (acute injury short cycles). Subcutaneous is the most common route. FDA placed BPC-157 on the 503A do-not-compound list in 2023. Read the BPC-157 dosing guide →
Have your answer? Get Titrate.
Free to start. 7-day Pro trial. iOS 17+ on iPhone, iPad, Apple Watch.
Deep dives
Calculators and guides for every compound on the page.
- Peptide reconstitution calculator
- Semaglutide reconstitution calculator
- Tirzepatide reconstitution calculator
- Titrate vs Shotsy
- Titrate vs Peptify
- Compounded semaglutide guide
- Compounded tirzepatide guide
- Semaglutide dose schedule (Ozempic & Wegovy)
- Tirzepatide dose schedule (Mounjaro & Zepbound)
- Semaglutide & tirzepatide half-life
- BPC-157 dosing guide
- Reconstitution calculator walkthrough
Get Titrate
Precision is your edge.
Seven days free. Two-tap setup. The first thing you'll open every morning, by the second week.
Download on App Store
iOS 17+ · Open it and start tracking
Not medical advice
Titrate is a tracker. It does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting, modifying, or stopping any medication or peptide protocol.