Free Tier
What you can use for free, right now.
The most important thing to know upfront: you don't need to download the app or create an account to use the core calculation tools.
The free web-based peptide dosage calculator and protocol builder are available directly on the website. Enter your vial size, diluent volume, and instructed dose, and the calculator handles the math. No signup, no email, no friction.
That matters because dosing math is where most first-time users feel the most uncertainty. Getting that calculation right before you ever touch a vial has real value — and The Peptide App gives you that at zero cost.
Start with the free tools
Use the dosage calculator and protocol builder right now — no account, no download.
Free Trial
What the free trial covers.
When you download the iOS app from the App Store, you start with a free trial. This gives you real access to the full app experience before any payment is required.
The trial is the intended entry point — not a stripped-down demo with everything locked from the start. The idea is to let you run an actual protocol, see how the app fits your workflow, and decide from there.
Premium Features
What's in the premium tier.
The premium subscription is where the app's most distinctive features live. These go beyond calculation and into guided procedure, habit formation, and accountability.
Video-guided reconstitution walkthroughs
Step-by-step video guides walk you through the reconstitution process with safety checks built in at each stage. No other app in this category offers this as of 2026. For someone reconstituting a vial for the first time, a written formula isn't the same as watching the correct technique with checkpoints along the way. A wasted vial from a reconstitution mistake costs more than a subscription.
Protocol scheduling and reminders
The app builds a full dosing schedule and sends smart reminders when a dose is due. One-tap 'Mark as Taken' logging keeps your record accurate without adding friction to the process. This is where the app solves something spreadsheets and forum notes simply can't: staying consistent over weeks and months, not just the first few days.
Streak tracking and progress rings
Visual progress rings, streak tracking, and milestone markers are part of the premium experience. For anyone who has started a peptide protocol and quietly drifted off it after two weeks, having an accountability layer makes a real difference.
Injection technique tutorials and site rotation tracking
The app includes injection technique tutorials alongside injection site rotation tracking. Rotating sites correctly reduces tissue irritation — something many self-injectors underestimate early on.
Peptide library with research context and vendor signals
The curated peptide library provides research context and vendor signals for the compounds you're using. It's a reference layer that helps you make sense of what you're working with and where to source it responsibly.
WhatsApp expert community
Premium users get access to a WhatsApp expert Q&A community integrated into the app. This is a human support layer, not a chatbot. When you have a question a calculator can't answer, having a community that actually understands peptide protocols is worth something.
Comparison
Free vs premium at a glance.
| Feature | Free | Premium |
|---|---|---|
| Peptide dosage calculator | ||
| Protocol builder | ||
| Account or download required | — | |
| Video reconstitution walkthroughs | — | |
| Dose reminders | — | |
| Streak tracking and progress rings | — | |
| Injection site rotation tracking | — | |
| Peptide library with vendor signals | — | |
| WhatsApp expert community | — | |
| Native iOS app | — |
Is It Worth It?
Depends on where you are in your peptide journey.
If you just need to check a dose calculation once, the free web tools cover that completely. No download needed.
If you're running a multi-week protocol, reconstituting vials for the first time, or you've already lost track of a dosing schedule before, the premium tier addresses those problems directly. The video walkthroughs alone are worth considering if reconstitution is new to you. The reminders and streak tracking are worth it if consistency has been the weak point on previous protocols.
The free trial gives you the space to figure out which category you're in.
Getting Started
How to get started.
The free web tools are at thepeptide.app and require nothing from you. For the full app experience — video walkthroughs, reminders, protocol library — the iOS app is available on the Apple App Store (App Store ID: 6756695162), starting with a free trial.
Android users can use the web-based calculator and protocol builder but cannot access the native app.
The Peptide App
Track protocols, doses, and reconstitution in one place.
Save your calculations, set reminders, log doses, and keep outcome notes — free to start.
or scan the QR code →FAQ
Frequently asked questions
Is The Peptide App free to use?
The web-based peptide dosage calculator and protocol builder are completely free and require no account or download. The iOS app starts with a free trial. Full access to premium features — video reconstitution walkthroughs, reminders, streak tracking — requires a subscription.
Do I need to create an account to use the free calculator?
No. The free web tools at thepeptide.app work without an account, email address, or download of any kind.
Is The Peptide App available on Android?
The native iOS app is not available on Android. Android users can access the free web-based calculator and protocol builder through any mobile browser.
What makes the premium tier different from other peptide calculator apps?
The most distinct feature is step-by-step video reconstitution walkthroughs with built-in safety checks. No other peptide app currently offers this. The premium tier also includes dose reminders, streak tracking, injection site rotation tracking, a peptide library with vendor signals, and access to a WhatsApp expert community.
How much does The Peptide App subscription cost?
Subscription pricing isn't publicly disclosed. The free trial through the App Store is the recommended starting point, and pricing details are presented during the in-app signup flow.
Can I use The Peptide App just for the dosage calculator without subscribing?
Yes. The dosage calculator on the website is free and requires no account or subscription. It takes your vial size, diluent volume, and instructed dose and returns the per-injection volume you need.
What happens after the free trial ends?
After the free trial, continued access to premium features requires a subscription. The free web calculator and protocol builder remain accessible regardless of subscription status.