# Stackr vs Peppy

The clearest difference is ads: Stackr at none against Peppy's shown. Stackr also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Peppy's advantage is ratings volume (68 vs 8). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Stackr sells 2 in-app purchases, starting at $4.99 per month and Peppy sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Stackr against 4.9 for Peppy. That said, the two scores are not equally well evidenced: Peppy has 68 ratings behind it against 8, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Stackr ships an update every 4 days, Peppy every 6 days. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Stackr | Peppy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/stackr-peptide-tracker/id6761287143/reviews)** | [4.9 (68 ratings)](https://appshunter.io/ios/app/peppy-peptide-tracker/id6782705929/reviews) |
| Number of ratings | 8 | **68** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 6 days |
| Monetization | Freemium | Free with in-app purchases |
| Size | 53 MB | 50 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Alexander Hoogland](https://appshunter.io/developer/1878011747) | [Automation Launchpad](https://appshunter.io/developer/1887975492) |

## What reviewers say

### Stackr

[App page](https://appshunter.io/ios/app/stackr-peptide-tracker/id6761287143)

Easily track supplements, peptides, and medications to ensure you never miss a dose or run out. Features include a compound library, reconstitution calculator, depletion tracking, and budget management.

**Highlights:** 200+ compound library, Reconstitution calculator, Depletion tracking, Protocol grouping, Budget tracking, Dose logging

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackr Pro Monthly | $4.99 | per month |
| Stackr Pro Annual | $39.99 | per year |


### Peppy

[App page](https://appshunter.io/ios/app/peppy-peptide-tracker/id6782705929)

This app helps users manage their GLP-1 and peptide injections. It allows for dose tracking, unit conversion, vial organization, injection site rotation, and timely reminders. It also tracks weight and symptoms to visualize progress.

**Highlights:** Dose logging and history, MG to syringe unit conversion, Vial and stash organization, Injection site rotation map, Flexible dose reminders, Weight and symptom tracking, Local data storage

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peppy Premium Monthly | $9.99 | per month |
| Peppy Premium Yearly | $49.99 | per year |
| Peppy Premium Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Stackr free?

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

### Is Peppy free?

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

### Which has better reviews, Stackr or Peppy?

Stackr is rated higher. Stackr averages 5.0 out of 5 from 8 ratings, while Peppy averages 4.9 from 68 ratings.

### Do Stackr or Peppy have ads?

Peppy shows ads; Stackr does not.

### Which is updated more often, Stackr or Peppy?

Stackr ships an update every 4 days, and Peppy every 6 days. Most recently, Stackr was updated on September 28, 2026 and Peppy on October 2, 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.*