# Peptides Calculator vs PepStash

The clearest difference is rating: PepStash at 5.0 against Peptides Calculator's 4.3. PepStash also leads on in-app purchases (none vs 11). Peptides Calculator's advantage is ratings volume (174 vs 5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Peptides Calculator sells 11 in-app purchases, starting at $9.99 per month. PepStash asks for nothing beyond the download.

PepStash holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Peptides Calculator has 174 ratings behind it against 5, so its average is the more settled of the two.

Peptides Calculator ships an update every 5 days, PepStash every 3 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Peptides Calculator | PepStash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (174 ratings)](https://appshunter.io/ios/app/peptides-calculator/id6744431355/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/pepstash/id6760975200/reviews)** |
| Number of ratings | **174** | 5 |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Freemium | **Free** |
| Size | 78 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Sphnix, Inc](https://appshunter.io/developer/1796901749) | [Aaron Voges](https://appshunter.io/developer/1866792993) |

## What reviewers say

### Peptides Calculator

[App page](https://appshunter.io/ios/app/peptides-calculator/id6744431355)

This app helps users log, organize, and manage their peptide preparation process. It offers features for calculating reconstitution details, saving vial records, and accessing educational content. An optional subscription unlocks unlimited entries, enhanced tracking, and multi-device sync.

**Highlights:** Log and calculate reconstitution details, Save and organize vial records, Browse peptide reference library, Access educational videos and articles, Track weight over time, Multi-device sync (Pro)

**Features:** macOS Compatibility, Family Sharing, Apple Wallet, Apple Watch app, iMessage stickers, Vision Pro support, iPhone Duo support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Access | $9.99 | per month |
| Family Monthly Premium Access | $14.99 | per month |
| Premium Plus | $14.99 | per month |
| Premium Plus Family (Montly) | $19.99 | per month |
| Pro Loyalty Yearly | $54.99 | per year |
| Yearly Premium Access | $99.99 | per year |
| Premium Plus Loyalty Yearly | $99.99 | per year |
| Family Yearly Premium Access | $149.99 | per year |
| Premium Plus (Yearly) | $149.99 | per year |
| Premium Plus — Family (Yearly) | $199.99 | per year |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to save vial info
- 👍 Nicely set up and laid out
- 💡 Streaks and last taken feature

**What reviewers complain about**

- 🐛 Lost access to previous peptide calculations
- 🐛 Unable to update streaks and last taken
- 🐛 Unable to record when a dose was taken

**Reported bugs**

- All vials disappeared after an update
- Unable to find how to update streaks and last taken

**Requested features**

- Add shot tracker to record when a dose was taken
- Allow editing of vial information and dosing
- Add option to set cycle length in weeks, not just days
- Allow changing dose for different weeks when titrating


### 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


## Frequently asked questions

### Is Peptides Calculator free?

Peptides Calculator is free to download, with in-app purchases available.

### Is PepStash free?

PepStash is free to download, with no in-app purchases.

### Which has better reviews, Peptides Calculator or PepStash?

PepStash is rated higher. Peptides Calculator averages 4.3 out of 5 from 174 ratings, while PepStash averages 5.0 from 5 ratings.

### Do Peptides Calculator or PepStash have ads?

Neither Peptides Calculator nor PepStash shows ads.

### Which is updated more often, Peptides Calculator or PepStash?

Peptides Calculator ships an update every 5 days, and PepStash every 3 days. Most recently, Peptides Calculator was updated on October 28, 2026 and PepStash on October 24, 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.*