Track GLP-1s, peptides, hormones and other injectable medications - simply, privately, without any ads and absolutely free.
Injectly is the simple, yet powerful way to track your injectable medications. No ads, no subscription, and no tracking — just free help for staying on top of your regimen.
No account is needed to log injections, set daily or weekly reminders, and view your history and Insights. Create a free account with Apple or Google to sync across your devices and to unlock advanced scheduling — cycles, titration (warm-up), and custom interval reminders. Your health data is always yours: never sold, never used for advertising, and you can export or delete it anytime.
Whether you're managing peptides, prescriptions, or personal health therapies, Injectly helps you log every injection, stay on schedule, and understand exactly what's happening between each dose. Enjoy!
For supported medications, the Insights tab turns your logbook into a live serum concentration dashboard. Injectly automatically pulls in the applicable medication you've been using, calculates current and projected levels based on your logged dose history and weight, and shows how close you are to peak along with how much of the dose remains active.
Features:
• Log each injection with dose, medication, date, time, route (SubQ/IM/IV), and injection site so you always have a searchable history — and can rotate sites.
• Save and reuse custom protocols for peptides, prescriptions, or personal therapies in a couple of taps.
• Reminders that match your cadence — daily, weekly, or specific weekdays — with multiple reminders per protocol and the dose amount shown right in the notification.
• Cycles: run on/off schedules (weeks on, weeks off) with reminders that follow the cycle automatically. (free account)
• Titration / warm-up: ramp a dose up or down over time, with a reminder for each step. (free account)
• Custom interval reminders: schedule doses every X days and keep long-horizon reminders firing on time. (free account)
• Review past and upcoming injections in the calendar or list view, with quick swipe actions to edit or delete.
• Serum Concentration Insights: visualize past and future concentration curves, see percent-of-peak and remaining dose, and review pharmacokinetic details for select medications.
• Blend protocols: create protocols for multi-peptide vials, see the per-ingredient dose breakdown for every injection, and get concentration insights for each individual constituent.
• Medication Glossary: browse details for all supported medications in one dedicated view.
• Your data, your control: export everything to CSV and delete your account and data anytime.
• Available in English and German.
I’ve been using Injectly constantly and it’s become my go-to app. The peptide info library is genuinely useful, and the daily tracking feature makes it easy to stay on top of everything without having to keep notes elsewhere. It’s clean, intuitive, and does exactly what I need without any bloat.On top of all that, it’s completely free — which is pretty rare for an app this useful these days. No paywalls, no hidden fees, just a solid tool that works.What really stood out was getting a personal email from the developer — it’s rare to see that kind of direct engagement these days, and it shows how much care goes into this app. Highly recommend if you’re looking for something reliable in this space!
Developer Response
Jan 3, 2026: Scheduled reminders are now showing up in the calendar view, thank you for the feedback Gabrielle --- Edit, Aug 5, 2026: Wow, thank you so much for the kind words of support Gabrielle!
App is incredible
Jack Frost 72
Thanks for developing this wonderful app. I used to struggle with my research. I had to put it down in notes and got overwhelming. It allows you to input the mgs you are reconstituting and how much recon fluid. Then it calculates how much to use if you know the mgs or mcs you are injecting. Records when and you can put in notes where if you like. Easy peasy, like butter. Cant find a better app than this to use if you are researching peptides
GREAT But…
Andrew_salib_girgis
The app is awesome, very easy to track and a clean design and interface. Just wish the developers were more active and responded as there’s certain things I wish they could add such as medication pills , drugs, and HRT medications as well as the ability to see the graphed concentrations in the body overtime. And not just be limited to peptides. Nonetheless app is great, just wish the developers could add more.
Developer Response
Hi Andrew, I think I replied to your emails? If not, my apologies. I am working on adding support for more medications including those using the iU system instead of mcg/mg, such as HRT, insulin, etc. Plotting serum concentrations depends on the availability of reliable peer reviewed data on the pharmacokinetics. Not all peptides for instance have that data available (yet).
Simple effective peptide dosage logger
bryanwrightscode
Solid and simple app. I like that it’s not filled with “features” that other apps add, which overcomplicate things. Visual IU fill diagram is helpful. Serum concentration curve “insights” is cool, and uses good models. Database error was resolved in a fast update.Would like:- inventory management (doses remaining calculation) but only if executed well. - not all peptides have data (time to peak factors and half life data) that allow them to utilize the insights feature but it’s not essential so it’s not a problem.
Medication Updates:
* Comprehensive descriptions and updates for 5-Amino-1MQ, GHK-Cu, Glutathione, KPV, Melanotan 1, Oxytocin and P-21
* Adds support for Cartalax, CJC-1295 w/ DAC, Eloralintide, IGF-1 LR3, Mazdutide, Mecasermin, PE-22-28, Somatropin, Sumatriptan and Teriparatide
Version 2.0.3
The developer, Matthias Gattermeier, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Health & Fitness
Contact Info
Identifiers
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Matthias Gattermeier
Size
70.6 MB
Category
Medical
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
