Comparison

Greyp vs Peptide Protocol

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

Head to head
About

Greyp

Features
Read full description

Get the most from your Greyp bike by connect it with your phone and use it as an extended dashboard or as the bike's remote. Switch between two modes: Dashboard & Remote. 1) DASHBOARD MODE Use your phone as an onboard computer when riding. Once paired and mounted, you will be able to check your phone for: * Bike status * Current speed * Elapsed time * State of charge * Battery level * Estimated range * Assistance level Using the handlebar controls, switch between different additional functions: * Ride Session – relevant bike stats from your current riding session * Navigation – input your destination and follow the turn-by-turn navigation * Camera - switch between front and rear cameras and record videos ** NEW: RETRO VIDEO - with a press of a button, go 30“ back in time and check your front camera footage 2) REMOTE MODE Control your bike remotely, check its current status or gain insight into the info your bike generated. It allows you to: * Check your bike's status * Look up the bike's last known position * Check the battery charge status * Set the maximum assistance level * Text the bike from your phone * Acquire a photo from the front or rear cameras * Watch recorded videos and/or images * Select, delete or save Retro Videos * See your notification list * Disable the bike remotely * Turn off the bike Software updates are free for all Greyp App users, so make sure you update your app regularly.

About

Peptide Protocol

This app helps users track peptide doses, manage vial inventory, and monitor weekly insights like energy, sleep, and mood. It offers a reconstitution calculator and features for biohackers and longevity enthusiasts, with local-first data storage for privacy.

Highlights
  • Dose logging for peptides
  • Reconstitution calculation helper
  • Vial inventory with refill reminders
  • Weekly insight charts (energy, sleep, mood, weight)
  • Protocol pausing and auto-resuming
  • Injection site rotation
  • Side-effect pattern review
  • Local-first data storage
Features
Read full description

Peptide Protocol is a peptide and GLP-1 dose tracker. Log every dose in seconds. Track vial inventory and get refill alerts. Rotate injection sites. Check in on energy, sleep, appetite and weight, and see what is actually changing week by week. The Reconstitution Helper does the arithmetic on the values you enter yourself — units, volume and doses per vial. Works with Ozempic, Mounjaro, Wegovy, Zepbound, Retatrutide, semaglutide, tirzepatide, BPC-157, CJC-1295, Ipamorelin, GHK-Cu and 30+ more compounds. Built for the biohacking and longevity crowd: pause your protocol with a return date and it auto-resumes the day you choose. Rotate injection sites, review side-effect patterns week by week, and keep every record local-first on your device. WHO IT IS FOR Peptide Protocol is designed for people who want structure, clarity, and better protocol follow-through without spreadsheet complexity. IMPORTANT Peptide Protocol is for personal organisation and self-tracking only. It does not calculate, recommend, or adjust medication doses and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional for any medical decisions, including dose amounts, frequency, or changes to your regimen. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://peptide-protocol.app/privacy/ Terms of Service: https://peptide-protocol.app/terms/

Screenshots

Greyp4 screens
Peptide Protocol4 screens

Verdict

The call

The clearest difference is in-app purchases: Greyp at none against Peptide Protocol's 7. Greyp also leads on iOS requirement (13.0 vs 18.0). Peptide Protocol's advantage is update cadence (every 5 days vs every 2 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Peptide Protocol sells 7 in-app purchases, starting at $4.99 per 7 days. Greyp asks for nothing beyond the download.

UpkeepUpdate frequency

Greyp ships an update every 2 months, Peptide Protocol every 5 days. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

Scorecard3 real differences · 7 level
Greyp versus Peptide Protocol: the parameters behind the verdict, then further details
ParameterGreypPeptide Protocol
PriceFreeFree
Rating—5.0 (12 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—12 — better
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size124 MB94 MB
Age rating4+12+
DeveloperPorsche e-bike performance d.o.o.Ludovic PUAUD

In-app purchases

None

Greyp

No in-app purchases

7 purchases

Peptide Protocol

Subscriptions6
  • Peptide Protocol Pro$4.997 Days
  • Peptide Protocol Pro3 Days trial$4.997 Days
  • Peptide Protocol Pro7 Days trial$9.991 Month
Show 3 more
  • PeptideProtocol Pro Monthly14 Days trial$9.991 Month
  • Peptide Protocol Pro$59.991 Year
  • PeptideProtocol Pro Yearly7 Days trial$59.991 Year
One-time1
  • Pro Lifetime$99.99

Questions

Is Greyp free?
Greyp is free to download, with no in-app purchases.
Is Peptide Protocol free?
Peptide Protocol is free to download, with in-app purchases available.
Do Greyp or Peptide Protocol have ads?
Neither Greyp nor Peptide Protocol shows ads.
Which is updated more often, Greyp or Peptide Protocol?
Greyp ships an update every 2 months, and Peptide Protocol every 5 days. Most recently, Greyp was updated on September 29, 2026 and Peptide Protocol on October 9, 2026.

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