Comparison

NextDose.AI vs Peppie

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

NextDose.AI

Track GLP-1s, TRT, peptides, and other compounds with an AI that analyzes your logged data. Monitor weight loss, hormone levels, and bloodwork with research-backed context. Features include vial scanning, dose calculators, and health integrations.

Highlights
  • Weight & GLP-1 Progress Tracking
  • Testosterone & TRT Monitoring
  • Bloodwork Analysis & Charting
  • AI Research Assistant
  • Estimated Pharmacokinetic Curves
  • AI Vial Scanner
  • Syringe & Reconstitution Calculator
Features
Read full description

Track your testosterone, weight loss, GLP-1s, peptides, and any compound, all in one simple app, with an AI that works from your real logged data. NextDose.AI is the all-in-one tracker for anyone running peptides, GLP-1s (semaglutide, tirzepatide), testosterone/ TRT therapy, or any research compound. Scan your vial, snap your bloodwork, and log every shot. Then watch your estimated pharmacokinetic curves update throughout the day. LOSING WEIGHT ON A GLP-1? Log your weekly shot, track your weight, and watch your progress week by week and month by month. Simple and clear, so you always know where you stand and where you're headed. TRACKING TESTOSTERONE OR TRT? Log your protocol and watch your total testosterone, free testosterone, estradiol, and full panel charted over time, right next to your doses. See how your levels move as your protocol changes. YOUR BLOODWORK, MADE CLEAR Snap any lab or blood test and NextDose transcribes your values, charts every marker over time, and flags what's above or below standard reference ranges with plain-language, research-cited context. It organizes and tracks your numbers. It does not diagnose. AN AI BUILT AROUND YOUR STACK This isn't a notes app with a calendar. NextDose's research assistant draws on your logged data plus a large library of peer-reviewed studies. Ask about dosing windows, half-lives, or how compounds interact, and it surfaces the relevant research next to your own numbers. It always cites the research, never prescribes a dose, and points you back to your physician. KEY FEATURES • Weight & GLP-1 Progress. Log your weekly shot, track your weight and body composition, and chart your progress over time. • Testosterone & TRT Tracking. Chart testosterone, estradiol, and your full hormone panel against your protocol. • Bloodwork Analysis & Charting. Snap any lab, auto-transcribe your values, and trend every marker with above and below range flags and research context. • Agentic AI Research Assistant. Grounded in your data and a large peer-reviewed research library. • Estimated Pharmacokinetic Curves. Modeled rise, peak, and clearance for every logged dose, hour by hour. • AI Vial Scanner. Point your camera and the strength and concentration auto-fill. • 100+ Compound Library. Peptides, GLP-1s, TRT, and popular performance compounds, with linked research. • Syringe & Reconstitution Calculator. Enter your concentration and target dose and it converts to syringe units. No math. • Interaction Notes. Surfaces documented interactions reported in the research for compounds you've logged. • Apple Health Sync. Weight, body fat, heart rate, HRV, and sleep. • Recovery Readiness. A daily score blending HRV, resting heart rate, and sleep trends. • Injection Site Rotation. A visual body map tracks your injection history and rotation points. • Morning Briefing. A daily AI summary of your logged doses, trends, and today's schedule. WHO IT'S FOR GLP-1 users tracking weight loss and metabolic progress. Peptide users tracking recovery and longevity. TRT patients tracking testosterone and ancillaries. Athletes and biohackers tracking performance and lab trends. YOUR DATA, YOUR CONTROL Encrypted and private. We never sell your data. Apple Health stays on-device unless you sync. Cancel and delete anytime. NEXTDOSE PREMIUM NextDose Premium unlocks every feature. The annual plan includes a 7-day free trial and is offered at a discount; a monthly option is also available. Subscriptions auto-renew unless canceled at least 24 hours before the current period ends, and you can manage or cancel anytime in your Apple ID settings. NextDose.AI is an educational compound tracker for adults 18+. It is not medical advice and not a substitute for a qualified healthcare professional. We do not sell, prescribe, recommend, or diagnose any compound or lab result. Always consult your physician. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Peppie

Organize your peptide routine with tools for vial tracking, reconstitution math, and dose reminders. Log doses, track remaining amounts, and get refill timing estimates. Features an AI assistant for routine inquiries.

Highlights
  • Vial tracking and math
  • Dose scheduling and reminders
  • Log taken, skipped, or missed doses
  • Scan-a-Vial identification
  • AI Peptide Assistant
  • Track remaining amounts and refill timing
Features
Read full description

Peppie: Peptide Tracker helps you organize your peptide routine with simple tools for vial tracking, reconstitution math, dose reminders, and daily logs. Peppie is designed for users who want a cleaner way to manage their peptide schedule, calculate syringe units based on their vial setup, and keep track of how much is left in each vial. With Peppie, you can: • Add peptides manually or by scanning a vial • Enter vial strength and reconstitution amount • Calculate concentration and syringe units • Create dose schedules and reminders • Log taken, skipped, or missed doses • Track how much remains in each vial • View estimated doses left and refill timing • Keep notes, side effects, and progress logs • Ask Peppie questions about your saved routine Scan-a-Vial Take a photo of your peptide vial and Peppie can help identify the name, vial strength, and label details. You confirm the information before anything is saved or calculated. Reconstitution Assistant Enter how many milligrams are in the vial and how much bacteriostatic water was added. Peppie calculates concentration, syringe units, and estimated doses. Dose & Reminder Tracker Build your schedule, receive reminders, and mark each dose as taken, skipped, or missed. Vial Tracking Peppie subtracts logged doses from your vial and shows how much is left, how many doses remain, and when you may run out. AI Peptide Assistant Ask Peppie about your saved vial setup, dose logs, reminders, and tracking history. Peppie is a tracking, calculation, and organization tool. Peppie does not provide medical advice, diagnosis, treatment, or prescribing guidance. Always consult a licensed healthcare professional before starting, stopping, or changing any peptide, medication, supplement, or wellness protocol. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://heypeppie.com/policies/privacy-policy

Screenshots

NextDose.AI4 screens
Peppie4 screens

Verdict

The call

The clearest difference is in-app purchases: NextDose.AI at none against Peppie's 2. NextDose.AI also leads on update cadence (every 2 days vs every 10 days) and ratings volume (11 vs 2). Peppie's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, rating, review sentiment and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Peppie sells 2 in-app purchases, starting at $4.99 per month. NextDose.AI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for NextDose.AI against 5.0 for Peppie. That said, the two scores are not equally well evidenced: NextDose.AI has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

NextDose.AI ships an update every 2 days, Peppie every 10 days. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 5 level
NextDose.AI versus Peppie: the parameters behind the verdict, then further details
ParameterNextDose.AIPeppie
PriceFreeFree
Rating5.0 (11 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings11 — better2
Update frequencyEvery 2 days — betterEvery 10 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size51 MB71 MB
Age rating17+17+
DeveloperNextDose.AI Inc.Muuv Lifestyle Corp

Customer experience

NextDose.AI

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Peppie

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

NextDose.AI

No in-app purchases

2 purchases

Peppie

Subscriptions2
  • Peppie Pro7 Days trial$4.991 Month
  • Peppie Pro7 Days trial$29.991 Year

Questions

Is NextDose.AI free?
NextDose.AI is free to download, with no in-app purchases.
Is Peppie free?
Peppie is free to download, with in-app purchases available.
Which has better reviews, NextDose.AI or Peppie?
NextDose.AI and Peppie are both rated 5.0 out of 5 on the App Store, from 11 and 2 ratings respectively.
Do NextDose.AI or Peppie have ads?
Neither NextDose.AI nor Peppie shows ads.
Which is updated more often, NextDose.AI or Peppie?
NextDose.AI ships an update every 2 days, and Peppie every 10 days. Most recently, NextDose.AI was updated on October 24, 2026 and Peppie on October 8, 2026.

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