Best Peptide Tracker Apps in 2026: Honest Comparison

“What app do you use to track your peptides?”

This question gets posted on r/Peptides every week. The answers are always the same mix: spreadsheets, generic reminder apps, pen and paper, and “I just remember.”

The peptide tracking space has matured since 2024. Dedicated apps exist now. But they weren't all built for the same user. A GLP-1 tracker designed for weekly semaglutide injections is a different product than a multi-compound protocol manager for someone running 5+ peptides.

This is an honest comparison. We built Titer, so we're biased — but we'll tell you when something else might fit better.

What You Actually Need (Depends on Your Stack)

Before comparing apps, know what category you're in:

• Single compound (GLP-1 only): Weekly injection tracking, titration schedule, weight logging. Most GLP-1 apps handle this well.
• 2-3 compounds: You need dose logging, basic scheduling, maybe site rotation. A good app or detailed spreadsheet works.
• 3+ compounds with cycling: This is where everything breaks. EOD schedules, 5-on-2-off cycling, titration phases, inventory management. You need purpose-built tools.

The Options in 2026

1. Google Sheets / Excel Spreadsheets

Best for: People who love spreadsheets and run 1-2 compounds

Pros:

• Completely free
• Infinitely customizable
• You own your data
• No app to install

Cons:

• No reminders or notifications
• No dose validation — a typo is a wrong dose
• Mobile experience ranges from bad to terrible
• Single point of failure — one broken formula and your data is suspect
• No injection site tracking
• Cycling schedules require complex formulas most users can't build

The spreadsheet works until it doesn't. For most users, that breaking point is around 3 compounds. If you're running a simple BPC-157 cycle and you like spreadsheets, there's no reason to switch. Once you're stacking, the spreadsheet becomes the bottleneck.

2. Shotsy

Best for: GLP-1 users who want a polished, simple experience

Pros:

• Clean UI, well-designed
• Injection site rotation with body map
• Weight and symptom tracking
• Titration schedule support
• 4.9-star App Store ratings

Cons:

• Designed primarily for GLP-1s — limited multi-compound support
• No reconstitution calculator or vial recipe storage
• No cycling schedule support (5-on-2-off, EOD)
• No inventory management
• Subscription pricing

Shotsy is genuinely good at what it does. If you're on semaglutide or tirzepatide and nothing else, it's a solid choice. If you're running BPC-157 alongside your GLP-1, or stacking multiple compounds, you'll outgrow it quickly.

3. Injection Tracker / Generic Medication Apps

Best for: Users who need basic dose logging and reminders

Pros:

• Simple, lightweight
• Basic reminders work
• Free or low-cost

Cons:

• No peptide-specific features (reconstitution, concentration math)
• No understanding of cycling protocols
• Reminders are simple calendar events — they don't adapt to protocol changes
• No site rotation intelligence
• No inventory tracking

These work as “did I take it today?” trackers. They don't help with “how much should I draw?” or “when does this vial expire?” or “which site should I use?”

4. MeAgain / GLAPP

Best for: GLP-1 users wanting community features

Pros:

• GLP-1 focused with community support
• Weight tracking and progress features
• Side effect logging

Cons:

• Limited to GLP-1 protocols
• No multi-compound support
• No reconstitution math
• Privacy concerns with community/social features

Similar story to Shotsy: great for the GLP-1-only use case, limited beyond that. If community and social accountability matter to you, these are worth checking.

5. Titer

Best for: Users running 2+ compounds who need dosing math, scheduling, and inventory in one place

Pros:

• Built specifically for peptide protocols (not adapted from a medication tracker)
• Vial recipe storage with automatic syringe-type conversion
• Multi-compound scheduling with cycling support (EOD, 5/2, MWF, custom)
• 8-site injection rotation with recovery tracking
• Inventory management with reorder alerts
• Titration phase tracking
• Privacy-first: local-first data, no account required

Cons:

• More complex than simple GLP-1 trackers — overkill if you're on one compound
• Newer to market (smaller user community)
• iOS-first (Android coming)

We built Titer because we were the spreadsheet users who hit the wall. If you're running a single GLP-1, Shotsy might be simpler. If you're running a multi-compound stack and want everything in one tool, Titer is what we wished existed.

Feature Comparison Matrix

Recommendation by User Type

GLP-1 Only (Semaglutide or Tirzepatide)

If you're injecting once weekly and your main concern is tracking your titration, weight, and side effects: Shotsy or Titer both work. Shotsy is simpler. Titer is better if you think you might add compounds later.

Healing Protocol (BPC-157 / TB-500)

You need reconstitution math, site rotation (especially if doing local injections), and cycle end-date tracking. Spreadsheets are fine for a single BPC cycle. Titer is better if you're running the Wolverine stack or stacking with other compounds.

Multi-Compound Stack (3+ Peptides)

This is where dedicated peptide tracking matters. Spreadsheets break. GLP-1 apps can't handle cycling. Generic reminder apps don't understand protocols. You need something that was built for this use case.

Privacy-First Users

If keeping your protocol data off someone else's server matters to you: spreadsheets (local file) or Titer (local-first architecture). Cloud-based trackers store your injection history on their servers.

What to Look for in Any Tracker

Regardless of which tool you choose:

1. Does it understand your protocol complexity? If you're cycling, does it support cycling? If you're titrating, does it track phases?
2. Can you log in under 10 seconds? If it takes longer, you'll stop logging. Compliance is everything.
3. Does it prevent errors or just record them? Dose validation, syringe conversion, and inventory warnings prevent mistakes. A simple log just documents them.
4. Where does your data live? On your device? Their cloud? Can you export it? Can you delete it?
5. Does it grow with you? Your protocol will change. Make sure your tool can handle the next phase, not just the current one.

The Bottom Line

There's no single “best” app. There's the right tool for your protocol complexity. A weekly semaglutide user and a 5-compound stacker have fundamentally different needs.

The worst option: tracking nothing. The second worst: using a tool that's too simple for your protocol, giving you false confidence that you're “on top of it.”

Match the tool to the complexity. Then actually use it.

Related

• Your peptide spreadsheet is a single point of failure
• The multi-compound scheduling problem
• The 3-compound cliff
• What to track during a peptide cycle

Disclaimer: This is educational information, not medical advice. App comparisons are based on publicly available features as of January 2026. Consult a qualified healthcare provider before starting any injectable protocol.