PepForge vs NextDose.AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PepForge
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PepForge is a comprehensive protocol and inventory manager for peptides, GLP-1 medications, supplements and research compounds. Whether you’re tracking semaglutide, tirzepatide, retatrutide, BPC-157, MOTS-c, testosterone, supplements or custom protocols, PepForge helps you organise dosing, inventory and treatment history in one place. Features include: • Flexible protocol scheduling • Smart dose logging • Inventory and vial tracking • Pharmacokinetic visualisation • Protocol history and analytics • Apple Health integration • Local-first privacy with optional iCloud sync • Automatic inventory backup and restore • Support for doses in mg, mcg, IU, mL and custom units PepForge is designed for people who value accurate records and long-term tracking rather than simple reminders. Whether you’re managing GLP-1 therapy, peptide protocols, hormone replacement or personal research, PepForge keeps your complete treatment history organised and easy to review.
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.
- Weight & GLP-1 Progress Tracking
- Testosterone & TRT Monitoring
- Bloodwork Analysis & Charting
- AI Research Assistant
- Estimated Pharmacokinetic Curves
- AI Vial Scanner
- Syringe & Reconstitution Calculator
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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/
Screenshots
Verdict
The clearest difference is in-app purchases: NextDose.AI at none against PepForge's 2. NextDose.AI also leads on update cadence (every 2 days vs fortnightly). On price, ads, device support and iOS requirement 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
Both are free to download. PepForge sells 2 in-app purchases, starting at $3.99 per month. NextDose.AI asks for nothing beyond the download.
PepForge ships an update fortnightly, NextDose.AI every 2 days. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | PepForge | NextDose.AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (9 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 51 MB |
| Age rating | 12+ | 17+ |
| Developer | Tim Doyle | NextDose.AI Inc. |
In-app purchases
PepForge
- PepForge Premium$3.991 Month
- PepForge Premium$24.991 Year
NextDose.AI
No in-app purchases









