# PeptIQ vs Stackr

The clearest difference is ads: Stackr at none against PeptIQ's shown. Stackr also leads on chart position (#206 vs unranked). PeptIQ's advantage is rating (4.7 vs 4.4) and ratings volume (946 vs 174). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. PeptIQ sells 12 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. That said, the two scores are not equally well evidenced: PeptIQ has 946 ratings behind it against 174, so its average is the more settled of the two. Written reviews complicate that: 62% of PeptIQ's written reviews are positive against 67% 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 every 4 days. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PeptIQ | Stackr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (946 ratings)](https://appshunter.io/ios/app/peptiq-peptide-tracker/id6757513095/reviews)** | [4.4 (174 ratings)](https://appshunter.io/ios/app/stackr-peptide-glp-1-tracker/id6764821587/reviews) |
| Number of ratings | **946** | 174 |
| Positive reviews | 61.7% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | — | **#206** |
| Size | 148 MB | 88 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 (12)**

| 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 |
| Premium Yearly $79.99 | $79.99 | 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 |
| Premium Lifetime | $299.99 | one-time |


### Stackr

[App page](https://appshunter.io/ios/app/stackr-peptide-glp-1-tracker/id6764821587)

**Currently charting:** #206 Top Free · Health & Fitness (US App Store)

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 946 ratings, while Stackr averages 4.4 from 174 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 every 4 days. Most recently, PeptIQ was updated on October 21, 2026 and Stackr on October 18, 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.*