# StackDay vs MyPepTracker

The clearest difference is in-app purchases: MyPepTracker at none against StackDay's 8. MyPepTracker also leads on ads (none vs shown). StackDay's advantage is update cadence (every 3 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. StackDay sells 8 in-app purchases, starting at $0.99 per 7 days. MyPepTracker asks for nothing beyond the download.

StackDay ships an update every 3 days, MyPepTracker every 4 weeks. The most recent releases landed on September 6, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | StackDay | MyPepTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/stackday-supplement-and-peptide/id6761502044/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 4 weeks |
| Monetization | Freemium | — |
| Size | 20 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 17+ |
| Developer | [Fog Hill, LLC](https://appshunter.io/developer/1496413878) | [Gregory Roy](https://appshunter.io/developer/1892922555) |

## What reviewers say

### StackDay

[App page](https://appshunter.io/ios/app/stackday-supplement-and-peptide/id6761502044)

This app helps you consistently take your vitamins and supplements. Log doses, build streaks, and view your adherence over time. It offers smart reminders and pre-loaded supplement information to make tracking easy.

**Highlights:** Daily checklist for all supplements, 50+ pre-loaded supplements, Streak and adherence statistics, Customizable smart reminders, Local data storage for privacy, Home screen widget (Pro)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly Discount | $0.99 | per 7 days |
| Pro Weekly | $1.99 | per 7 days |
| Pro Monthly Discount | $3.99 | per month |
| StackDay Pro Monthly | $4.99 | per month |
| StackDay Pro Monthly Subscription | $4.99 | per month |
| Pro Annual Discount | $19.99 | per year |
| StackDay Pro Annual Subscription | $24.99 | per year |
| StackDay Pro Annual | $49.99 | per year |


### MyPepTracker

[App page](https://appshunter.io/ios/app/mypeptracker/id6762103081)

**In-app purchases:** none


## Frequently asked questions

### Is StackDay free?

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

### Is MyPepTracker free?

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

### Do StackDay or MyPepTracker have ads?

StackDay shows ads; MyPepTracker does not.

### Which is updated more often, StackDay or MyPepTracker?

StackDay ships an update every 3 days, and MyPepTracker every 4 weeks. Most recently, StackDay was updated on September 6, 2026 and MyPepTracker on September 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*