# PepStash vs ProStack

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.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

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.

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.

## The numbers

| Metric | PepStash | ProStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/pepstash/id6760975200/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/prostack-peptide-tracker/id6789934657/reviews) |
| Number of ratings | 2 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | Free | Free |
| Size | 3 MB | 65 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Aaron Voges](https://appshunter.io/developer/1866792993) | [JESSIE GRACE CHRISTIE](https://appshunter.io/developer/6789934659) |

## What reviewers say

### PepStash

[App page](https://appshunter.io/ios/app/pepstash/id6760975200)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ProStack

[App page](https://appshunter.io/ios/app/prostack-peptide-tracker/id6789934657)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*