Comparison

PepStash vs ProStack

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

Head to head
About

PepStash

Manage your peptide inventory, track costs, and log doses with this personal companion app. It helps calculate concentrations, suggests ideal water amounts, and syncs data across household devices via iCloud for seamless sharing and reminders.

Highlights
  • Peptide inventory management
  • Cost per milligram calculation
  • Reconstitution concentration calculator
  • Dose logging with vial tracking
  • Household data syncing via iCloud
  • Dose reminders and alerts
  • Purity test result linking
Features
Read full description

PepStash is your personal peptide management companion. Track inventory from purchase through reconstitution to dose logging — synced across your household via iCloud. INVENTORY & KITS Add individual vials or purchase kits. See quantities and milligram breakdowns at a glance. Track what you paid per kit and PepStash calculates cost per milligram. Add third-party purity test results with a link to the report. Stock rotation sorting ensures oldest kits are used first. PRICE ANALYTICS Compare cost per milligram across suppliers. Toggle between labeled and tested mg values to see what you actually received versus what you paid for. RECONSTITUTION Enter your bacteriostatic water amount and get your concentration instantly. The built-in calculator suggests ideal water amounts based on your expected dose, highlighting options that land on clean syringe units. DOSE LOGGING Log every dose with peptide name, amount, unit (mg, mcg, IU), and source vial. Active vials automatically track remaining milligrams so you always know what's left. SHARE WITH YOUR PARTNER Invite your spouse or partner via CloudKit sharing. Both of you can manage inventory, reconstitute vials, and log doses from your own devices. Each person's doses are tagged separately. DASHBOARD & REMINDERS Your daily command center shows today's doses, active vial status with color-coded depletion gauges, low inventory alerts, and quick-action buttons. Set recurring dose schedules with reminders so you never miss a dose day. PRIVACY FIRST All data stays on your device and your private iCloud account. No servers, no accounts, no tracking.

About

ProStack

Effortlessly calculate peptide dosages and track your cycles with instant syringe unit calculations. Log your progress, set reminders, and access a reference library for safe and effective use.

Highlights
  • Instant syringe unit calculation
  • Cycle tracking with calendar view
  • Dose reminders with auto-pause
  • Progress tracking (body composition, photos)
  • Peptide reference library
  • Nasal spray calculator
Features
Read full description

Stop doing peptide math in your head. ProStack Guide calculates exact syringe draws instantly, tracks every cycle, and reminds you when it is time to dose. • Quick Calculator — pick a peptide and get an instant, accurate syringe unit calculation • Cycle Tracking — log active, paused, and completed protocols with a visual monthly and weekly calendar • Dose Reminders — schedule-aware notifications that pause automatically when you pause a cycle • Progress Tracking — log body composition and photos over time • Peptide Library — reference guides for reconstitution, storage, and handling • Nasal Spray Calculator — dedicated dosing math for intranasal protocols ProStack Guide is a tracking and calculation tool for research and personal record-keeping purposes only. It is not medical advice and does not diagnose, treat, or prescribe. Always consult a qualified healthcare professional before beginning or changing any protocol. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PepStash4 screens
ProStack4 screens

Verdict

The call

PepStash and ProStack are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for PepStash against 5.0 for ProStack. Both are backed by a comparable volume of ratings — 2 and 3 respectively.

UpkeepUpdate frequency

PepStash ships an update every 3 days, ProStack every 6 days. The most recent releases landed on September 24, 2026 and September 29, 2026 respectively.

ScorecardNo meaningful differences
PepStash versus ProStack: the parameters behind the verdict, then further details
ParameterPepStashProStack
PriceFreeFree
Rating5.0 (2 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings23 — better
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size3 MB65 MB
Age rating4+17+
DeveloperAaron VogesJESSIE GRACE CHRISTIE

Customer experience

PepStash

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ProStack

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PepStash

No in-app purchases

None

ProStack

No in-app purchases

Questions

Is PepStash free?
PepStash is free to download, with no in-app purchases.
Is ProStack free?
ProStack is free to download, with no in-app purchases.
Which has better reviews, PepStash or ProStack?
PepStash and ProStack are both rated 5.0 out of 5 on the App Store, from 2 and 3 ratings respectively.
Do PepStash or ProStack have ads?
Neither PepStash nor ProStack shows ads.
Which is updated more often, PepStash or ProStack?
PepStash ships an update every 3 days, and ProStack every 6 days. Most recently, PepStash was updated on September 24, 2026 and ProStack on September 29, 2026.

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