How we ranked these apps
We looked at each app through the eyes of someone running an injection routine week after week, and asked six questions:
- Is it built around the injection itself, or does the dose sit inside a food or fitness diary?
- Does it handle vials: what is left, reconstitution and units on the syringe?
- Does it keep injection sites and cycles with planned breaks?
- Do its reminders notice a missed dose and cope with a change of time zone?
- Where do your records live, and do you need an account to start?
- What is free, and what sits behind a subscription?
For other apps we used only their App Store listings, Google Play pages and websites. Where a table says “—”, we did not find the feature in those sources; it does not mean the app lacks it.
1. PepLabo: the best overall tracker for peptide and GLP-1 routines
PepLabo is built for people who inject. Each program has its own schedule, on and off periods and weeks off; each dose is logged with its compound, amount, time, site and vial; and the calculator turns a vial amount and the water you added into units on an insulin syringe. Reminders arrive before a dose, on time and again if nothing was logged. A side-effect check-in records energy, sleep, mood and symptoms and can be linked to any dose from the last 72 hours. Weight, progress photos, water and meals sit in the same app.
Pro adds Pep AI chat, meal estimates from a photo, your voice or a restaurant menu, Apple Health, Health Connect and WHOOP data, widgets, travel mode, Cycle Story and a PDF dose report for your clinician. It runs in six languages on iPhone and Android.
Strongest at: the whole injection routine in one private app. Keep in mind: there is no iPad, watch or web version yet, and no cloud sync. Price: free core; Pro is $9.99 a month or $59.99 a year in the US, with 3 days free on the yearly plan for eligible new subscribers.
2. PeptidePal: a protocol tracker with a compound library
PeptidePal covers peptide and GLP-1 protocols, with vial inventory, reconstitution math, a site body map and a library of compound profiles [1]. Its listing places protocol tracking itself in a subscription [1], where PepLabo keeps the daily log free and works without an account.
Strongest at: reading up on compounds and talking with other users in its forum [1]. Platforms: iPhone and Android. Price: free to download; tracking needs a subscription [1]. Full comparison: PepLabo vs PeptidePal →
3. Pep AI: GLP-1 Peptide Tracker: a subscription tracker with a watch app
Made by Zode Development LLC and unrelated to PepLabo, this app logs GLP-1 and peptide doses, sites, vials, symptoms, food and sleep, with an Apple Watch app and community groups [2]. Its listing says tracking requires a paid subscription and that data is synced to your account [2]; its website says it does not calculate syringe units [20].
Strongest at: a wellness dashboard on your wrist. Platforms: iPhone, Apple Watch and Android. Price: free to download; tracking needs a paid subscription [2]. Full comparison: PepLabo vs Pep AI: GLP-1 Peptide Tracker →
4. PepCalc: a reconstitution calculator with saved protocols
PepCalc focuses on the math: units or tick marks per draw, 100- and 40-unit syringes and blends of several peptides, plus saved protocols and a Today view of scheduled draws [3]. It keeps data on the device without signup [3]. We did not find reminders, vial stock or injection sites in its sources.
Strongest at: calculating blends. Platforms: iPhone, iPad and Android. Price: $9.99 to download on the US App Store [3]. Full comparison: PepLabo vs PepCalc →
5. Shotsy: a GLP-1 dose log with preset level charts
Shotsy is made for GLP-1 medicines, with schedules for several medicines, a side-effect log and estimated level charts for four GLP-1 molecules [4]. We did not find vial stock or reconstitution tools in its sources [4][16], so peptides from powder vials sit outside its focus.
Strongest at: GLP-1 level curves with no half-life to enter. Platforms: iPhone and Android. Price: free core, with an optional Shotsy+ subscription [16]. Full comparison: PepLabo vs Shotsy →
6. Glapp: GLP-1 insights with supply tracking
Glapp logs shots with dose, time and site, tracks pen and vial supply and draws level curves for semaglutide and tirzepatide [5]. Its website describes keeping your history in a Glapp account with encrypted sync [17]. We did not find cycles with planned breaks or travel handling in its sources.
Strongest at: research answers about GLP-1 medicines inside the app [5]. Platforms: iPhone, Android and a web browser [17]. Price: free core; Glapp Max is optional [17]. Full comparison: PepLabo vs Glapp →
7. Pep GLP-1 Tracker: a GLP-1 companion with food scanning
Published by Shred Apps, LLC and unrelated to PepLabo or its character Pep, this app covers GLP-1 shots and pills with site rotation, dose escalation, side effects and an AI meal scanner [6]. Its website offers a units calculator for compounded vials [18]; we did not find vial stock or an in-app reconstitution calculator in its sources.
Strongest at: logging meals next to a GLP-1 routine. Platforms: iPhone, iPad and Android. Price: free to download; Pep Pro is optional [6]. Full comparison: PepLabo vs Pep GLP-1 Tracker →
8. Phaze: a GLP-1 tracker for the wrist
Phaze tracks GLP-1 shots and pills with level estimates, site rotation and a side-effect list, and adds food logging and a community [7]. It is local-first and needs no login [19]. We did not find a reconstitution calculator or syringe units in its sources.
Strongest at: logging from an Apple Watch. Platforms: iPhone, Apple Watch, iPad, Android and the web. Price: free core; Pro is $9.99 a month or $59.99 a year according to its website [19]. Full comparison: PepLabo vs Phaze →
9. MyFitnessPal: a food diary with a GLP-1 mode
MyFitnessPal is a food, calorie and workout diary that has added GLP-1 dose logging, reminders and a symptom log [8]. We did not find vials, reconstitution or injection sites in its listing [8]; the dose is one entry inside the diary.
Strongest at: a very large food database [8]. Platforms: iPhone, iPad and Android. Price: free with ads; Premium and Premium Plus are paid [8]. Full comparison: PepLabo vs MyFitnessPal →
10. Lose It!: a calorie budget with GLP-1 levels
Lose It! builds a daily calorie budget and lets you log a GLP-1 medicine with estimated levels by phase [9]. We did not find dose reminders, vials or injection sites in its listing [9].
Strongest at: calorie budgeting. Platforms: iPhone, iPad and Android. Price: free to download, with a paid subscription [9]. Full comparison: PepLabo vs Lose It! →
11. Cronometer: detailed nutrient tracking
Cronometer tracks calories, macros and a long list of vitamins and minerals from a verified food database [10]. We did not find dose logging in its listing [10].
Strongest at: micronutrient detail. Platforms: iPhone, iPad and Android. Price: free to download; Cronometer Gold is paid [10]. Full comparison: PepLabo vs Cronometer →
12. MacroFactor: adaptive macro targets
MacroFactor adjusts calorie and macro targets from an energy expenditure estimate, with weekly check-ins [11]. We did not find dose logging in its listing, and it does not offer a free subscription tier [11].
Strongest at: macro coaching by algorithm. Platforms: iPhone, iPad and Android. Price: $11.99 a month or $71.99 a year in the US, after a 7-day trial [11]. Full comparison: PepLabo vs MacroFactor →
13. Cal AI: calorie estimates from meal photos
Cal AI turns a meal photo into a nutrition breakdown after a short setup; its listing says scanning results need a subscription [12]. We did not find dose, vial or site features in its listing [12]. PepLabo Pro also estimates meals from a photo, your voice or a restaurant menu, next to your doses.
Strongest at: photo-first food logging. Platforms: iPhone and Android. Price: free to download; scanning results need a subscription [12]. Full comparison: PepLabo vs Cal AI →
14. Noom: a behavior-change program
Noom combines daily lessons, AI food logging and optional coaching, and offers GLP-1 care to eligible people [13]. We did not find dose logging, vials or injection sites in its listing [13]; PepLabo records the routine whoever prescribed it.
Strongest at: lessons and coaching. Platforms: iPhone and Android. Price: plans from $17 a month, according to its listing [13]. Full comparison: PepLabo vs Noom →
15. WeightWatchers: a coached program with a GLP-1 track
WeightWatchers pairs its Points program and coaches with a GLP-1 track that includes dose tracking, and clinical care for eligible members [14]. We did not find vials, reconstitution or injection sites in its listing [14].
Strongest at: a membership with people around you. Platforms: iPhone, iPad and Android. Price: free to download; the program is a paid membership [14]. Full comparison: PepLabo vs WeightWatchers →
16. Medisafe: a general medication reminder
Medisafe reminds you about every kind of medicine, with refill reminders, time zone support and family sharing [15]. We did not find vials, reconstitution or injection sites in its listing [15].
Strongest at: many daily pills and caregivers. Platforms: iPhone and Android. Price: free to download [15]. Full comparison: PepLabo vs Medisafe →
The 16 apps side by side
| App | Strongest at | Vials and reconstitution | Injection sites | Dose reminders | Price model |
|---|---|---|---|---|---|
| PepLabo | The whole injection routine | Vial stock and calculator | Yes | Before, on time and missed | Free core + Pro |
| PeptidePal | Compound library and forum | Vial stock and calculator [1] | Yes [1] | Yes [1] | Subscription for tracking [1] |
| Pep AI: GLP-1 Peptide Tracker | Wellness dashboard and watch | Vial inventory [2] | Yes [2] | Yes [2] | Subscription for tracking [2] |
| PepCalc | Blend calculations | Calculator [3] | — | — | Paid app [3] |
| Shotsy | Preset GLP-1 level charts | — | Yes [16] | Yes [4] | Free + Shotsy+ [16] |
| Glapp | GLP-1 research answers | Supply and dose calculator [5][17] | Yes [17] | Yes [17] | Free + Glapp Max [17] |
| Pep GLP-1 Tracker | Meals beside a GLP-1 log | Units calculator on its website [18] | Yes [6] | Yes [6] | Free + Pep Pro [6] |
| Phaze | Logging from a watch | Supply on Pro [19] | Yes [7] | Yes [7] | Free + Pro [19] |
| MyFitnessPal | Food database | — | — | GLP-1 reminders [8] | Free + Premium [8] |
| Lose It! | Calorie budget | — | — | — | Free + subscription [9] |
| Cronometer | Micronutrients | — | — | — | Free + Gold [10] |
| MacroFactor | Adaptive macros | — | — | — | Subscription [11] |
| Cal AI | Photo food logging | — | — | — | Subscription for results [12] |
| Noom | Lessons and coaching | — | — | — | Plans from $17/month [13] |
| WeightWatchers | Coached program | — | — | — | Paid membership [14] |
| Medisafe | Many pills, family sharing | — | — | Yes [15] | Free to download [15] |
Which app fits your priority
| Your priority | Our pick | Why |
|---|---|---|
| Peptides and GLP-1s in one log | PepLabo | Every compound runs as its own program, with vials, sites and cycles. |
| Mixing my own vials | PepLabo | The calculator gives syringe units, and each dose draws the vial down. |
| Not paying to log doses | PepLabo | Dose logging, reminders, vials and sites are on the free plan. |
| No account, records on my phone | PepLabo | Tracking starts without sign-up, and the app has no analytics SDKs. |
| Never missing a dose, even abroad | PepLabo | Reminders follow up on a missed dose, and travel mode (Pro) moves them to a new time zone. |
| A report for my clinician | PepLabo | Pro builds a PDF dose report, and the full data file is free. |
| Only a detailed food diary | MyFitnessPal or Cronometer | Food databases are their core [8][10]. |
| A coached program or clinical care | Noom or WeightWatchers | Both offer coaching and care for eligible people [13][14]. |
| Many daily pills for the family | Medisafe | It is a general medication reminder with family sharing [15]. |
Dedicated tracker or food app?
A food app can hold a dose as one more entry, and for a single weekly pen that may be enough. Once the routine includes powder vials, more than one compound, planned breaks or travel, the dose needs its own home: the vial it came from, the units you drew, the site you used and a reminder that does not give up when you are late. That is the gap PepLabo was built to fill, and why it sits at the top of this list.
Bottom line: keep a food app if you love it, and let PepLabo own the injections.
Trademarks
All app names are trademarks of their owners. PepLabo has no affiliation with any of these companies. Details come from public store listings and websites on 20–21 October 2026 and may have changed since.
