Comparison

Frontload vs PeptideCore

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

Head to head
About

Frontload

Track peptide, TRT, and GLP-1 doses with detailed charts, reminders, and inventory management. Features include progress photos, lab tracking, and phased protocols. An AI coach analyzes your data for personalized insights.

Highlights
  • Blood-level PK charts
  • Injection logging with site rotation
  • Full inventory tracking
  • Phased protocols and titration schedules
  • Lab result tracking
  • AI coach for personalized insights
  • Cloud backup
Read full description

The blood-level charts, reminders, and full protocol tracking are free. No trial, no paywall, no catch. Most peptide and TRT apps charge for exactly this. I don't. Frontload is built for people running serious peptide and TRT/HRT protocols. Track every injection, watch your blood levels rise and fall between doses, keep every vial and dose organized, and never miss a shot. The AI coach reads your own labs, protocols, and injection history, and it's built to say "I don't know" instead of guessing. The coach and Cloud Backup are the paid part. WHAT'S FREE (and stays free) • Progress photos with a voice guide that lines up every shot the same way, then compare any two side by side. Your photos stay on your phone. • Blood-level PK chart: peak, trough, and steady-state, per compound • Injection logging with site rotation • Full inventory: every peptide, HRT compound, GLP-1 (semaglutide, tirzepatide), supplement, and med • Phased protocols with automatic on/off scheduling • Titration schedules: gradual dose adjustments over weeks, auto-stepping • Lab result tracking and trend charts • Macro logging • Sleep, fitness, weight, and food sync from Apple Health • Reminders and notifications • Light and dark mode • JSON export, anytime No account needed. Your health data lives on your phone unless you turn on Cloud Backup, and I never sell it. The app sends a few basic signals, like which version you're on and whether it was opened today, so I can find and fix bugs. Never what you log, and never what you ask the coach. THE AI COACH (Pro) Not a chatbot. Not a correlation engine. An actual coach with direct access to your full health context (labs, protocols, peptide stack, GLP-1 doses, nutrition, sleep, fitness, side effects), plus a curated knowledge base of peptide and HRT references. It reads a lab PDF, scans a supplement label, analyzes a side-effect cluster, and explains it in plain language. Grounded in your own data, not the internet's. Pro adds unlimited AI coach conversations with photo attachments, unlimited lab PDF parsing, unlimited nutrition and supplement-label scans, Cloud Backup, and Frontload on your computer at app.frontloadapp.com. Cloud Backup and the web app are for paid plans, not the free trial. The price for your region shows in the app before you subscribe. WHO BUILT THIS Frontload is a one-person project. I'm in the HRT and peptide community myself, and I wanted a tracker that didn't feel cold and clinical, so I built the one I wanted, with every feature I needed. I had my wife test it the whole way through, so it isn't built only for the guys. She told me what women actually need in a tool like this: cycle-aware tracking, the right hormone panels, and a tracker that doesn't assume everyone's a man on TRT. It's all in here. I gave it to one friend, hoping to help him. He gave it to another. That's how Frontload has gotten everywhere it's gotten so far. No ads. No growth team. The mission isn't to get rich. It's to cover the cost of running the app and build something genuinely useful to people on their HRT and peptide journeys. The AI Coach engages with compounds, doses, and protocols directly, but it's not a doctor. Always discuss any protocol change with your prescribing physician. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PeptideCore

Features
Read full description

The most complete protocol tracker for serious GLP-1 and peptide users. Track Ozempic®, Wegovy®, Mounjaro®, Zepbound® — or any peptide stack — with pharmacokinetic curves, a stack-interaction checker, and a citation-backed library no other tracker offers. PeptideCore is the private, on-device companion for GLP-1 patients, peptide stackers, microdosers, and biohackers who want a clean visual record of every shot, dose, and side effect. No ads. No data sold. No bro-science. Built by an iOS engineer who tracks their own protocol. FREE TO USE Log every dose, rotate injection sites, run the reconstitution calculator, and browse the peptide library — free, no account required. PeptideCore Pro is optional. WHAT YOU GET WITH PRO • Estimated medication-level curve. See how semaglutide, tirzepatide, retatrutide, or any peptide with a known half-life decays over the past week — with peak and trough markers. • Visual injection-site map. Front and back body view with 14 sites. Each site color-codes by days since last use so you rotate intelligently. • Dose-coded weight chart. Your weight line is colored by current dose tier so the weight loss response to your Mounjaro® or Wegovy® titration is visible at a glance. • Reconstitution calculator. Forward (dose → units), reverse (target draw → BAC water), and multi-peptide blend modes. Supports U-100, U-40, and tuberculin syringes. • Curated peptide library. 25+ entries with typical dose, half-life, route, and a tap-through PubMed citation. Covers BPC-157, TB-500, CJC-1295, Ipamorelin, MOTS-c, GHK-Cu, PT-141, Tesamorelin, and more. • Stack interaction checker. Flags overlap between active compounds with severity grading and PubMed-linked citations. • Inventory tracking. Vial-by-vial stock with expiry dates, reorder reminders, lot numbers, and cost per dose. • Live Activity countdown. Your next shot lives on your lock screen and Dynamic Island. • Apple Health integration. Pulls weight, HRV, sleep, and resting heart rate to correlate with your protocol. • Private on-device AI. Apple Intelligence flags adherence trends, symptom patterns, and site rotation balance — without sending your data anywhere. • Share card export. Render a branded progress card to celebrate weekly wins. SUBSCRIPTION PRICING • Pro Monthly — $12.99/month • Pro Yearly — $79.99/year (save 48%) Payment is charged to your Apple ID at purchase confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. PRIVACY-FIRST Your protocol data is stored locally and synced through your private iCloud account. We never sell, share, or send your data to ad networks. Apple Health is read-only. WHO IT IS FOR GLP-1 patients on Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Rybelsus®, Saxenda®. Researchers logging BPC-157, TB-500, CJC-1295, Ipamorelin, Tesamorelin, MOTS-c. Microdosers tracking sub-clinical doses. Anyone who wants their protocol on their own device. DISCLAIMER PeptideCore is for tracking and education only. It does not diagnose, treat, or replace medical advice. Always work with a licensed clinician on dosing decisions. All product names, logos, and brands are property of their respective owners. PeptideCore is an independent tracking tool and is not affiliated with, endorsed by, or sponsored by Novo Nordisk, Eli Lilly, or any pharmaceutical manufacturer. LEGAL Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gist.github.com/NicolasR27/04208c6bb1bc0e7d037aa792247f5bcc

Screenshots

Frontload4 screens
PeptideCore4 screens

Verdict

The call

The clearest difference is update cadence: Frontload at every 5 days against PeptideCore's every 3 weeks. Frontload also leads on iOS requirement (15.1 vs 26.4). On price, ads, in-app purchases and device support 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. Frontload sells 2 in-app purchases, starting at $14.99 per month and PeptideCore sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Frontload ships an update every 5 days, PeptideCore every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Frontload versus PeptideCore: the parameters behind the verdict, then further details
ParameterFrontloadPeptideCore
PriceFreeFree
Rating5.0 (60 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings60 — better—
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.4
Further details — not scored
Size60 MB13 MB
Age rating17+12+
DeveloperSTACKEDDD LLCNicolas Rios

In-app purchases

2 purchases

Frontload

Subscriptions2
  • Frontload Pro$14.991 Month
  • Frontload Pro$89.991 Year
2 purchases

PeptideCore

Subscriptions2
  • Pro Monthly$12.991 Month
  • Pro Yearly$79.991 Year

Questions

Is Frontload free?
Frontload is free to download, with in-app purchases available.
Is PeptideCore free?
PeptideCore is free to download, with in-app purchases available.
Do Frontload or PeptideCore have ads?
Neither Frontload nor PeptideCore shows ads.
Which is updated more often, Frontload or PeptideCore?
Frontload ships an update every 5 days, and PeptideCore every 3 weeks. Most recently, Frontload was updated on November 5, 2026 and PeptideCore on October 31, 2026.

Other comparisons