The best peptide and injection tracker apps in 2026, compared

The best peptide tracker app depends on what you inject, which phone you carry, and what you are willing to pay. Peptide Tracker is the best free option on both platforms, with no paid tier as of 30 September 2026. Shotsy is the strongest pick for branded GLP-1 pens if you want the most-reviewed app and doctor-ready PDF reports. DoneDose and Protocol are the ones to beat on iPhone today if you want everything kept on the device. PinTrax is built for people who reconstitute and want the deepest site-rotation map with nothing leaving the phone, and it is on Android only until Apple finishes reviewing it.

Every claim about another app was checked against that app's own website or store listing on 30 September 2026, or on 1 October 2026 for the two apps called Vial, which were added that day. Each section links to the listing it came from. Where another app is better at something, this page says so, and says who should pick it.

How these apps were compared

Same criteria for every app: platforms, price, reconstitution support, site-rotation depth, and where your data is stored. Prices are US App Store or Google Play prices in US dollars on 30 September 2026, or 1 October 2026 where a row says so. Feature sets and prices in this category move every few weeks, so treat that date as the point these claims were true.

Not included: StackTrax, because it sells research peptides through its own site. PepTracker, because its site links to a peptide seller using referral tags. VialWise and DiaCycle, because no store listing or product site could be found for either on 1 October 2026.

Shotsy: best for branded GLP-1 pens and doctor-ready reports

Shotsy has the largest review base in the category: 4.8 from about 32,700 ratings on the App Store on 30 September 2026, and it is on Google Play too. According to Shotsy's own site, shot logging, dose reminders, injection-site rotation and side-effect logging are free. Shotsy+ adds an estimated medication-level chart and Apple Health or Health Connect sync, at $9.99 to $19.99 a month or $39.99 to $59.99 a year on the App Store. It exports PDF reports for a care team and CSV. On iPhone it keeps data on the device and in your private iCloud with no account; on Android it uses Google Firebase. It does not do reconstitution or vial math.

Pick Shotsy over PinTrax if you use branded pens like Ozempic, Mounjaro or Zepbound, never mix a vial, and want the most-reviewed app, Apple Health sync, or a PDF to hand your doctor. PinTrax exports CSV and an image recap, not a PDF.

Peptide Tracker: best free option, both platforms

Peptide Tracker is free, with no paid tier as of 30 September 2026, on the App Store and Google Play. Optional founding-member purchases exist; its listing says it has no subscription and no paywall. It handles reconstitution in the app and in a web calculator that needs no account, plus vial inventory, protocol scheduling and an adherence score, with a compound library on its site. Rotation shows where the last dose went rather than mapping exact spots. Its privacy policy says data is kept on its servers under an anonymous account.

Pick Peptide Tracker over PinTrax if you want every feature free with no limits on compounds, or you are on iPhone today. PinTrax is free for 2 compounds and charges for more; Peptide Tracker had no paid tier as of 30 September 2026.

PeptideCalc.io: best one-time price on iPhone

PeptideCalc.io pairs a free web reconstitution calculator with an iPhone and iPad app that costs $4.99 once, no subscription (App Store). The app is calculator-first: reconstitution, concentration and syringe units, schedules, dose logs, inventory, half-life and medication-level charts, custom injection sites with last-used hints, CSV export and optional iCloud sync. There is no Android app. Its FAQ says importing Shotsy history is coming in version 2.7.9; the App Store version on 30 September was 2.7.7.

Pick PeptideCalc.io over PinTrax if you are on iPhone and would rather pay once than subscribe.

PeptIQ: best for an interaction checker and web access

PeptIQ runs on iPhone, Android and the web. There is no free plan: its pricing page says full access needs PeptIQ Premium, which the App Store lists from $49.99 to $129.99 a year, with weekly and monthly options. It has reconstitution with multi-peptide blends across 100, 50 and 30-unit syringes, an interaction checker, 12 protocol templates, a body map, and a Premium AI vial scanner. Data stays on the device by default, with cloud sync as a Premium feature.

Pick PeptIQ over PinTrax if you want an interaction checker, or want to use the same account on the web and your phone.

DoneDose: best on-device rotation tracker on iPhone today

DoneDose is an iPhone medication tracker built around a body map that suggests the next site, one-tap logging and a warning before you double-dose, for injectable and oral medications. It has a reconstitution calculator that deducts from vial inventory. Its App Store listing says "No accounts. No cloud sync. No data collection. Everything stays on your device." It is free for up to 3 medications; Pro is $4.99 a month or $34.99 a year. An Android version is in development.

Pick DoneDose over PinTrax if you are on iPhone now and want the same no-account, on-device approach, or you also take oral medications. DoneDose is the closest match to PinTrax on privacy, and it is on iPhone today; PinTrax's iOS build 14 has been in App Review since 24 September 2026.

Protocol: best for on-device tracking on iPhone and Android, with PDF export

Protocol, from IMA, LLC, runs on iPhone and iPad (App Store, listed as "Protocol Peptide Tracker App") and Android (Google Play, listed as "Protocol: Peptide Tracker"). Its pricing page lists a free tier with a forward and reverse reconstitution calculator, a 3D injection-site body map, and CSV and PDF export. Pro is $9.99 a month (since 21 August 2026), $59.99 a year or $149.99 once, and every install gets 14 days of Pro free with no card. The body map suggests the next site. Its privacy policy says records are stored only on the device, with no iCloud and no remote database, and its App Store privacy label reads "Data Not Collected". It reads from and writes to Apple Health, and includes AI tools with paid query credits. Its homepage describes the free tier differently from its pricing page; this page follows the pricing page, as checked on 30 September 2026.

Pick Protocol over PinTrax if you want the same on-device, no-account approach on iPhone or iPad today, or want PDF export and Apple Health sync alongside it.

BodyDex: a second option with a body map on both platforms

BodyDex runs on iPhone and Android with a reconstitution calculator and a site-rotation body map. It is free for 2 active peptide protocols; Premium is $9.99 a month or $79.99 a year. It stores records in a local database on the phone, though its AI photo scanning sends photos to its server, and its App Store privacy label lists health and contact data as linked to you.

Pick BodyDex over PinTrax if you want AI photo scanning in the same app as your protocol log.

Vial (vialtracker.com): on-device tracking on iPhone, subscription from day one

Vial, from Syed Arman, runs on iPhone and iPad (App Store, listed as "Vial: Peptide & GLP-1 Tracker"). You need a Vial Pro subscription to track anything; the listing says there is no free tier. The App Store lists Vial Pro at $5.99 a week, $9.99 a month or $59.99 a year, and its site says eligible new subscribers on the monthly plan get a 7-day free trial. The site lists a reconstitution calculator for concentration and syringe units. Injection sites go on a body diagram that shows your recent sites. Neither the listing nor the site describes a heat map or a next-site suggestion. Tracking records stay on the device with no Vial account, and Apple and RevenueCat handle the subscription.

Pick this Vial over PinTrax if you are on iPhone today, want on-device storage with no account, and do not mind subscribing before you log.

Vial (vial-app.com): lowest yearly price, lifetime option

A different app with the same name: Vial, from Jeffrey Blaine Holman, on iPhone and iPad (App Store, listed as "Vial - Peptide Tracker"). It's free to start. Premium is $4.99 a month, $24.99 a year or $44.99 once, and that yearly price is the lowest on this page. It has a reconstitution calculator, vial inventory with low-stock alerts, estimated blood-level charts, a wellness journal, lab results and body composition, which it can write to Apple Health. You pick an injection site when you log a dose; neither the listing nor the site shows a body map. Its App Store privacy label reads "Data Not Collected".

Pick this Vial over PinTrax if you are on iPhone or iPad and want a one-time price, lab results and body composition in the same app.

PinTrax: best for people who reconstitute, deepest rotation, nothing leaves the phone

PinTrax is where reconstitution and rotation depth meet privacy that's structural rather than promised. The site map isn't a list of body parts; you tap the exact spot, and the app runs a proximity warning that flags a tap within about 1.4 cm (on a 175 cm body) of any injection from the last 14 days, Heat Map, a rest-ranked next-site suggestion, and a rotation score across a 26-zone map. That radius is wider than the 1 cm minimum spacing in injection-technique guidance (see injection site rotation).

On the math side it handles reconstitution with CoA and purity precedence, a reverse mode, and blends. And nothing leaves the phone: no account, no cloud, no server, no analytics. It's on Android, on Google Play since 29 September 2026. The iPhone version is submitted and in App Review. It is free for 2 compounds, 1 active vial or pen and 3 compound inventory items; PinTrax Pro is $4.99 a month or $29.99 a year, with a 14-day free trial on the yearly plan (see pricing). If you reconstitute and want rotation done right without handing your medical log to a server, that's the slot it fills.

Correction, 30 September 2026: an earlier version of this page said PinTrax v1 was free and that iOS was planned; PinTrax has had a paid tier since its public release on Google Play on 29 September 2026, and the iPhone version is in App Review. The same revision rechecked every other app against its own listing. It corrected Shotsy's premium price and its data storage, PeptIQ's pricing (it has no free plan), DoneDose's data storage and its reconstitution calculator, and PeptideCalc.io's CSV import (announced, not yet released), and added Protocol. The earlier version's description of Shotsy's free weight tracking was dropped.