# Stackr vs PepLog

Stackr and PepLog both sit at 4.4 stars, but that hides the real split: 100% of PepLog's written reviews are positive against 69% of Stackr's. PepLog also leads on monetization model (free vs freemium). Stackr's advantage is ratings volume (232 vs 26) and update cadence (weekly vs fortnightly). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Stackr sells 7 in-app purchases, starting at $7.99 per 7 days and PepLog sells 2 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 — 4.4 for Stackr against 4.4 for PepLog. That said, the two scores are not equally well evidenced: Stackr has 232 ratings behind it against 26, so its average is the more settled of the two. Written reviews are what separate them: 69% of Stackr's written reviews are positive against 100% of PepLog's.

Stackr ships an update weekly, PepLog fortnightly. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Stackr | PepLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (232 ratings)](https://appshunter.io/ios/app/stackr-peptide-tracker/id6764821587/reviews)** | [4.4 (26 ratings)](https://appshunter.io/ios/app/peplog-peptide-tracker/id6790928604/reviews) |
| Number of ratings | **232** | 26 |
| Positive reviews | 69.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Freemium | **Free** |
| Size | 86 MB | 34 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Stackr Holdings LLC](https://appshunter.io/developer/1896525659) | [Moises Olivares](https://appshunter.io/developer/6794804081) |

## What reviewers say

### Stackr

[App page](https://appshunter.io/ios/app/stackr-peptide-tracker/id6764821587)

This app simplifies tracking peptide and GLP-1 doses, including supplies like vials and pens. It offers smart reminders, home screen widgets, and visual charts of estimated active levels based on half-life. Designed for users managing peptide protocols, it keeps your dosing information organized and accessible.

**Highlights:** Log peptide and GLP-1 doses, Track vials, pens, and other supplies, Smart reminders for next doses, Home screen widgets, Estimated active level charts, Multi-peptide stack tracking, Reference pages for common compounds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackr+ Weekly | $7.99 | per 7 days |
| Monthly | $12.99 | per month |
| Stackr+ Yearly | $29.99 | per year |
| Stackr+ Yearly | $49.99 | per year |
| Stackr+ Yearly | $49.99 | per year |
| Stackr+ Yearly | $59.99 | per year |
| Yearly | $69.99 | per year |


### PepLog

[App page](https://appshunter.io/ios/app/peplog-peptide-tracker/id6790928604)

This app helps users manage peptide protocols by providing a private, on-device logbook. Quickly record doses, track vial usage, monitor consistency with streaks and history, and log weight over time. It also includes a unit converter for precise measurements.

**Highlights:** Log doses in seconds, Track vial contents and remaining amounts, Monitor logging consistency and history, Chart weight over time with goals, Unit converter for syringe measurements, Private, on-device data storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepLog Pro Monthly | $9.99 | per month |
| PepLog Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Stackr free?

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

### Is PepLog free?

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

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

Stackr is rated higher. Stackr averages 4.4 out of 5 from 232 ratings, while PepLog averages 4.4 from 26 ratings.

### Do Stackr or PepLog have ads?

Neither Stackr nor PepLog shows ads.

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

Stackr ships an update weekly, and PepLog fortnightly. Most recently, Stackr was updated on November 13, 2026 and PepLog on November 10, 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.*