Karyo vs Protocol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Karyo
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Karyo is the precision reproductive wellness protocol engineered for men. Designed for the data-driven optimizer, the Karyo App serves as the central dashboard for your reproductive wellness, bridging the gap between daily lifestyle inputs and long-term biological outputs. By tracking the variables that actively influence the 90-day spermatogenesis cycle, Karyo provides a clear, uncompromising understanding of your biological trajectory. THE REGENERATION INDEX Your daily Regeneration Index provides a precise measure of your body's baseline. This 0 to 100 score calculates the compounding impact of your lifestyle across seven core pillars of male health, offering actionable guidance to keep your system calibrated. CLEARANCE KINETICS Karyo surfaces the optimal windows so you know exactly where you stand in your 90-day timeline. THERMAL DEFENSE Monitor heat exposure from your environment. Discover how laptops, saunas, and daily habits impact your reproductive health. STRESS RESILIENCE & TOXIN LOAD Understand how daily actions and environmental factors affect your body. Find the required balance between systemic strain and recovery. PRECISION PROTOCOL TRACKING Track your wellness routines alongside the physical Karyo supplement system to maintain impactful nutritional balance. LONG-TERM BIOLOGICAL TRENDS View your daily, weekly, and monthly trends. Track your progress across three distinct biological phases: Fast-Response, Cellular Architecture, and the Clinical Buffer. BIOHACKER'S LIBRARY Get personalized insights and guidance on how your environment impacts your body with deep-dive science modules on oxidative stress, thermoregulation, and reproductive biology. Karyo is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. Karyo is only designed for general fitness and wellness purposes. Please do not make any changes to your medication, daily routines, nutrition, sleep schedule, or workouts without first consulting your doctor or another medical professional.
Protocol
This app helps users meticulously track peptide cycles, logging each injection with customizable details. It provides comprehensive guides on reconstitution, injection techniques, and safety, alongside personalized reminders and progress tracking.
- Log peptide injections with customizable details
- Curated library of 25+ compounds
- Add custom compounds and edit entries
- Streak counter and dose history
- Per-peptide reminders with native iOS notifications
- Built-in safety and how-to guides
- Personalized onboarding based on goals and experience
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Protocol is the ultimate lab app for your peptide cycles — a premium iOS tracker for people who treat their stack seriously. Log every injection in micrograms, ride the streak, and keep your reconstitution, injection technique, and safety guides one tap away. WHAT YOU CAN DO Build your stack - Add from a curated library of 25+ compounds: BPC-157, TB-500, Tirzepatide, Cagrilintide, Retatrutide, Semaglutide, GHK-Cu, CJC-1295 (no DAC), Ipamorelin, Sermorelin, Tesamorelin, NAD+, MOTS-c, Humanin, SS-31, AOD-9604, Pinealon, Selank, Semax, DSIP, PT-141, KPV, Thymosin alpha-1, VIP, SLU-PP-332. - Configure each entry: dose amount in micrograms, milligrams, or IU; frequency (daily, every other day, twice daily, post-workout, weekly, custom); a color tag; private notes. - Add custom compounds outside the library. Edit or pause any entry at any time. Log doses in one tap - The Today screen shows your full stack. Tap "Log" — the dose is recorded with the right amount, unit, and timestamp. - Mistapped? Undo the last log instantly. - A day badge shows how many doses you've taken for each peptide today (×1, ×2, ×3). Streaks and history - Streak counter on Today and Profile counts consecutive days with at least one dose. - "This week" and "All time" totals sit next to the streak. - Pull to refresh; everything syncs to the cloud the moment you tap. Reminders that match real protocols - Per-peptide reminders: pick times of day, days of week, AM/PM windows, post-workout cues. - Native iOS notifications, respectful of Do Not Disturb and Focus modes. - The Notifications screen logs every reminder fire and streak milestone in one feed. Built-in safety and how-to guide - 10 in-app chapters written for the peptide-curious and the long-cycle stacker: • Important disclaimer — what this app is and isn't • Your first cycle — where to start • Reconstitution — mixing lyophilized peptides safely • Injection technique (subQ) in 6 steps • Storage & shelf life — lyophilized vs reconstituted • Side effects — common, rare, and red flags • Stacking & cycling — combinations that make sense • Bloodwork to monitor — what to test and when • Sourcing & purity — how to verify what you're injecting • Legal status — know what's allowed where you live Tailored from day one - Onboarding asks two questions: what are you here for (recovery, longevity, performance, GH, cognitive, metabolic, sleep, sexual, immune, skin, weight loss) and your experience level (new, some experience, advanced). - Library and protocol suggestions adjust accordingly. Edit goals & experience anytime from your profile. Profile and identity - Display name, handle, bio, avatar. - At-a-glance stats: total doses logged, current streak, active goals. - Sign in with Email or Google. Privacy-first — no social feed, no public timeline, no follower count. WHAT'S INTENTIONAL - No ads, no social feed, no in-app purchases inside the tracker. - Your data stays yours. WHO IT'S FOR - People running 1–5 compounds at a time who keep their dose log in Notes and forget which vial they're three days into. - First-cycle users who want a clean reference for reconstitution and injection technique before they self-experiment. - Long-cycle stackers who want streaks, weekly volume, and full historical doses on tap. DISCLAIMER Peptide is a tracking and reference tool, not a medical device. Nothing in the app is medical advice or a prescription. Consult a qualified physician before starting any protocol. TERMS OF USE https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Karyo at none against Protocol's 2. Karyo also leads on iOS requirement (15.1 vs 17.5). On price, ads 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
Both are free to download. Protocol sells 2 in-app purchases, starting at $1.99 per 7 days. Karyo asks for nothing beyond the download.
| Parameter | Karyo | Protocol |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.5 |
| Further details — not scored | ||
| Size | 102 MB | 47 MB |
| Age rating | 17+ | 12+ |
| Developer | Karyo, LLC | Alexandre Masmejean |
In-app purchases
Karyo
No in-app purchases
Protocol
- Protocol Pro7 Days trial$1.997 Days
- Protocol Pro1 Year trial$39.991 Year









