Peptide tracker and calculator for iPhone
Pepdex helps you get your dose right. It works out the units to draw, then tracks every vial, shot and reminder for peptides and GLP-1s. Food, weight and workouts sit alongside. The calculator and library are free; tracking is Pro. We don't sell peptides.
Free download for iPhone and iPad. See everything the app does

1 · Calculator

2 · Vials and reminders

3 · Everything else
What the app does
- 01FreeWorks out the units to draw
Enter the vial size, the water you added and your own dose. Pepdex shows the units to draw on your syringe, or how much water to add.
- 02ProReminds every shot and counts down every vial
A reminder for each shot, a one-tap log, and the doses and days left in each vial, with a warning before it runs low.
- 03ProTracks any peptide, or your own
68 peptides built in, including GLP-1s, plus TRT and any compound you add. Daily, weekly, chosen weekdays, every few days, or on/off cycles.
- 04Free, 10 a dayAnswers “is this normal?”
An AI Coach for side effects, half-lives and what the studies found. It reads your logged numbers unless you turn off “Let Coach see my numbers”, before you start or later in Settings.
- 05FreeShows the research, with sources
Evidence grades and cited studies for nearly every built-in compound, with FDA and WADA status here on pepdex.co. We don't sell peptides.
- 06ProLogs food, weight and workouts too
Meals by search, barcode or photo, plus water, workouts, weight, check-ins, supplements and Apple Health.
Free peptide reference
68 peptides, 9 mixed blends, 12 longevity adjuncts and 10 stack supplements, each with FDA and WADA status, evidence tier, dose math and side effects in plain English. Free to read.
Look up a peptide
Dose ranges, side effects, FDA and WADA status, in plain English.
- BPC-157healing
- Tirzepatidefat loss
- Semaglutidefat loss
- Retatrutidefat loss
- HGH (Somatropin)growth hormone
- MK-677 (Ibutamoren)growth hormone
Most looked-up peptides shown. Every entry: dose math, side effects, FDA and WADA status.
On a computer? Ask the web AI Coach free, every day, with a free account. No card needed.
Pick the door that fits.
Different visitors need different things. Skip what's not relevant.
Reads your Personal Stack and the full peptide index on every message. Ask about doses, missed shots, side effects, switching peptides. Plain English, no fluff.
Vial size + bac water → exact units to draw on a 1 mL insulin syringe. With diagrams. Get the math right instead of eyeballing it.
Zero-to-first-cycle. Read this once if you've never used peptides, it links to everything else in the order it matters.
68 peptides, 9 blends, 12 adjuncts, and 10 stack supplements. Filter by type, evidence, FDA status.
Top of the index
Highest demand right now. Click to open the entry.
Read these before you start.
Make it your plan. from $4.99/week or $29.99 per cycle.
The peptide info is free. Membership adds the AI Coach for your exact stack, a Personal Stack tracker, and members-only Verified Sources for vetting any source you're considering. Cancel anytime.
See plans →