# PeptIQ vs Stackr

The clearest difference is ads: Stackr at none against PeptIQ's shown. Stackr also leads on review sentiment (69% vs 60%). PeptIQ's advantage is rating (4.7 vs 4.4) and ratings volume (957 vs 232). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. PeptIQ sells 10 in-app purchases, starting at $9.99 per 7 days and Stackr sells 7 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PeptIQ holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 957 and 232 respectively. Written reviews complicate that: 60% of PeptIQ's written reviews are positive against 69% of Stackr's, so the app with the better star average is not the one people write more warmly about.

PeptIQ ships an update every 5 days, Stackr weekly. Both last shipped on November 13, 2026.

## The numbers

| Metric | PeptIQ | Stackr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (957 ratings)](https://appshunter.io/ios/app/peptiq-peptide-tracker/id6757513095/reviews)** | [4.4 (232 ratings)](https://appshunter.io/ios/app/stackr-peptide-tracker/id6764821587/reviews) |
| Number of ratings | **957** | 232 |
| Positive reviews | 60.3% of reviews | **69.4% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 148 MB | 86 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Kris Chase](https://appshunter.io/developer/1802750327) | [Stackr Holdings LLC](https://appshunter.io/developer/1896525659) |

## What reviewers say

### PeptIQ

[App page](https://appshunter.io/ios/app/peptiq-peptide-tracker/id6757513095)

This app helps users meticulously log peptide injections, manage custom treatment plans, and monitor injection site rotation. It also tracks inventory, provides wellness insights, and offers an educational peptide library, all while prioritizing user privacy with local data storage.

**Highlights:** Log peptide injections with dosing and site tracking, Build custom protocols with flexible schedules, Monitor injection site rotation, Track inventory and vial amounts, Visualize wellness trends, Educational peptide library, Privacy-first local data storage

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $9.99 | per 7 days |
| PeptIQ Premium Monthly | $19.99 | per month |
| Premium Monthly $24.99 | $24.99 | per month |
| PeptIQ Premium Annual 50% Off | $49.99 | per year |
| PeptIQ Premium Annual (50% Off) | $49.99 | per year |
| PeptIQ Premium Annual July4 | $82.00 | per year |
| PeptIQ Premium Yearly | $99.00 | per year |
| Premium Annual $99 Trial | $99.00 | per year |
| Premium Annual $99 | $99.00 | per year |
| Premium Annual $129.99 | $129.99 | per year |


### 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 |


## Frequently asked questions

### Is PeptIQ free?

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

### Is Stackr free?

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

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

PeptIQ is rated higher. PeptIQ averages 4.7 out of 5 from 957 ratings, while Stackr averages 4.4 from 232 ratings.

### Do PeptIQ or Stackr have ads?

PeptIQ shows ads; Stackr does not.

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

PeptIQ ships an update every 5 days, and Stackr weekly. Most recently, PeptIQ was updated on November 13, 2026 and Stackr on November 13, 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.*